diff --git a/services/objectstorage/api_default.go b/services/objectstorage/api_default.go
index c9971a9510..4456dfd83c 100644
--- a/services/objectstorage/api_default.go
+++ b/services/objectstorage/api_default.go
@@ -794,6 +794,17 @@ func (r CreateAccessKeyRequest) Execute() (*CreateAccessKeyResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -996,6 +1007,17 @@ func (r CreateBucketRequest) Execute() (*CreateBucketResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1366,6 +1388,17 @@ func (r CreateCredentialsGroupRequest) Execute() (*CreateCredentialsGroupRespons
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1571,6 +1604,17 @@ func (r DeleteAccessKeyRequest) Execute() (*DeleteAccessKeyResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1754,6 +1798,17 @@ func (r DeleteBucketRequest) Execute() (*DeleteBucketResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2092,6 +2147,17 @@ func (r DeleteCredentialsGroupRequest) Execute() (*DeleteCredentialsGroupRespons
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2472,6 +2538,17 @@ func (r DisableServiceRequest) Execute() (*ProjectStatus, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2655,6 +2732,17 @@ func (r EnableServiceRequest) Execute() (*ProjectStatus, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2846,6 +2934,17 @@ func (r GetBucketRequest) Execute() (*GetBucketResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3520,6 +3619,17 @@ func (r GetServiceStatusRequest) Execute() (*ProjectStatus, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3713,6 +3823,17 @@ func (r ListAccessKeysRequest) Execute() (*ListAccessKeysResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3896,6 +4017,17 @@ func (r ListBucketsRequest) Execute() (*ListBucketsResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -4068,6 +4200,17 @@ func (r ListCredentialsGroupsRequest) Execute() (*ListCredentialsGroupsResponse,
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
diff --git a/services/objectstorage/model_access_key.go b/services/objectstorage/model_access_key.go
index 29719b89c2..4498703d45 100644
--- a/services/objectstorage/model_access_key.go
+++ b/services/objectstorage/model_access_key.go
@@ -49,28 +49,32 @@ type AccessKeyGetDisplayNameRetType = string
 	types and functions for expires
 */
 
-// isNotNullableString
+// isNullableString
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-type AccessKeyGetExpiresAttributeType = *string
+type AccessKeyGetExpiresAttributeType = *NullableString
 
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func getAccessKeyGetExpiresAttributeTypeOk(arg AccessKeyGetExpiresAttributeType) (ret AccessKeyGetExpiresRetType, ok bool) {
 	if arg == nil {
-		return ret, false
+		return nil, false
 	}
-	return *arg, true
+	return arg.Get(), true
 }
 
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func setAccessKeyGetExpiresAttributeType(arg *AccessKeyGetExpiresAttributeType, val AccessKeyGetExpiresRetType) {
-	*arg = &val
+	if IsNil(*arg) {
+		*arg = NewNullableString(val)
+	} else {
+		(*arg).Set(val)
+	}
 }
 
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-type AccessKeyGetExpiresArgType = string
+type AccessKeyGetExpiresArgType = *string
 
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-type AccessKeyGetExpiresRetType = string
+type AccessKeyGetExpiresRetType = *string
 
 /*
 	types and functions for keyId
@@ -157,6 +161,7 @@ func (o *AccessKey) SetDisplayName(v AccessKeyGetDisplayNameRetType) {
 }
 
 // GetExpires returns the Expires field value
+// If the value is explicit nil, the zero value for string will be returned
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func (o *AccessKey) GetExpires() (ret AccessKeyGetExpiresRetType) {
 	ret, _ = o.GetExpiresOk()
@@ -165,6 +170,7 @@ func (o *AccessKey) GetExpires() (ret AccessKeyGetExpiresRetType) {
 
 // GetExpiresOk returns a tuple with the Expires field value
 // and a boolean to check if the value has been set.
+// NOTE: If the value is an explicit nil, `nil, true` will be returned
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func (o *AccessKey) GetExpiresOk() (ret AccessKeyGetExpiresRetType, ok bool) {
 	return getAccessKeyGetExpiresAttributeTypeOk(o.Expires)
diff --git a/services/objectstorage/model_create_access_key_payload.go b/services/objectstorage/model_create_access_key_payload.go
index de1a220016..79e91655d5 100644
--- a/services/objectstorage/model_create_access_key_payload.go
+++ b/services/objectstorage/model_create_access_key_payload.go
@@ -28,22 +28,22 @@ var _ MappedNullable = &CreateAccessKeyPayload{}
 type CreateAccessKeyPayloadGetExpiresAttributeType = *time.Time
 
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-type CreateAccessKeyPayloadGetExpiresArgType = time.Time
+type CreateAccessKeyPayloadGetExpiresArgType = *time.Time
 
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-type CreateAccessKeyPayloadGetExpiresRetType = time.Time
+type CreateAccessKeyPayloadGetExpiresRetType = *time.Time
 
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func getCreateAccessKeyPayloadGetExpiresAttributeTypeOk(arg CreateAccessKeyPayloadGetExpiresAttributeType) (ret CreateAccessKeyPayloadGetExpiresRetType, ok bool) {
 	if arg == nil {
-		return ret, false
+		return nil, false
 	}
-	return *arg, true
+	return arg, true
 }
 
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func setCreateAccessKeyPayloadGetExpiresAttributeType(arg *CreateAccessKeyPayloadGetExpiresAttributeType, val CreateAccessKeyPayloadGetExpiresRetType) {
-	*arg = &val
+	*arg = val
 }
 
 // CreateAccessKeyPayload struct for CreateAccessKeyPayload
@@ -72,7 +72,7 @@ func NewCreateAccessKeyPayloadWithDefaults() *CreateAccessKeyPayload {
 	return &this
 }
 
-// GetExpires returns the Expires field value if set, zero value otherwise.
+// GetExpires returns the Expires field value if set, zero value otherwise (both if not set or set to explicit null).
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func (o *CreateAccessKeyPayload) GetExpires() (res CreateAccessKeyPayloadGetExpiresRetType) {
 	res, _ = o.GetExpiresOk()
@@ -81,6 +81,7 @@ func (o *CreateAccessKeyPayload) GetExpires() (res CreateAccessKeyPayloadGetExpi
 
 // GetExpiresOk returns a tuple with the Expires field value if set, nil otherwise
 // and a boolean to check if the value has been set.
+// NOTE: If the value is an explicit nil, `nil, true` will be returned
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func (o *CreateAccessKeyPayload) GetExpiresOk() (ret CreateAccessKeyPayloadGetExpiresRetType, ok bool) {
 	return getCreateAccessKeyPayloadGetExpiresAttributeTypeOk(o.Expires)
@@ -99,6 +100,18 @@ func (o *CreateAccessKeyPayload) SetExpires(v CreateAccessKeyPayloadGetExpiresRe
 	setCreateAccessKeyPayloadGetExpiresAttributeType(&o.Expires, v)
 }
 
+// SetExpiresNil sets the value for Expires to be an explicit nil
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *CreateAccessKeyPayload) SetExpiresNil() {
+	o.Expires = nil
+}
+
+// UnsetExpires ensures that no value is present for Expires, not even an explicit nil
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *CreateAccessKeyPayload) UnsetExpires() {
+	o.Expires = nil
+}
+
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func (o CreateAccessKeyPayload) ToMap() (map[string]interface{}, error) {
 	toSerialize := map[string]interface{}{}
diff --git a/services/objectstorage/model_rate_limit_error.go b/services/objectstorage/model_rate_limit_error.go
new file mode 100644
index 0000000000..2e1330d28f
--- /dev/null
+++ b/services/objectstorage/model_rate_limit_error.go
@@ -0,0 +1,385 @@
+/*
+STACKIT Object Storage API
+
+STACKIT API to manage the Object Storage
+
+API version: 2.0.1
+*/
+
+// Code generated by OpenAPI Generator (https://openapi-generator.tech); DO NOT EDIT.
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+package objectstorage
+
+import (
+	"encoding/json"
+	"time"
+)
+
+// checks if the RateLimitError type satisfies the MappedNullable interface at compile time
+var _ MappedNullable = &RateLimitError{}
+
+/*
+	types and functions for error
+*/
+
+// isNotNullableString
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetErrorAttributeType = *string
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func getRateLimitErrorGetErrorAttributeTypeOk(arg RateLimitErrorGetErrorAttributeType) (ret RateLimitErrorGetErrorRetType, ok bool) {
+	if arg == nil {
+		return ret, false
+	}
+	return *arg, true
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func setRateLimitErrorGetErrorAttributeType(arg *RateLimitErrorGetErrorAttributeType, val RateLimitErrorGetErrorRetType) {
+	*arg = &val
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetErrorArgType = string
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetErrorRetType = string
+
+/*
+	types and functions for message
+*/
+
+// isNotNullableString
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetMessageAttributeType = *string
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func getRateLimitErrorGetMessageAttributeTypeOk(arg RateLimitErrorGetMessageAttributeType) (ret RateLimitErrorGetMessageRetType, ok bool) {
+	if arg == nil {
+		return ret, false
+	}
+	return *arg, true
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func setRateLimitErrorGetMessageAttributeType(arg *RateLimitErrorGetMessageAttributeType, val RateLimitErrorGetMessageRetType) {
+	*arg = &val
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetMessageArgType = string
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetMessageRetType = string
+
+/*
+	types and functions for path
+*/
+
+// isNotNullableString
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetPathAttributeType = *string
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func getRateLimitErrorGetPathAttributeTypeOk(arg RateLimitErrorGetPathAttributeType) (ret RateLimitErrorGetPathRetType, ok bool) {
+	if arg == nil {
+		return ret, false
+	}
+	return *arg, true
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func setRateLimitErrorGetPathAttributeType(arg *RateLimitErrorGetPathAttributeType, val RateLimitErrorGetPathRetType) {
+	*arg = &val
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetPathArgType = string
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetPathRetType = string
+
+/*
+	types and functions for status
+*/
+
+// isInteger
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetStatusAttributeType = *int64
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetStatusArgType = int64
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetStatusRetType = int64
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func getRateLimitErrorGetStatusAttributeTypeOk(arg RateLimitErrorGetStatusAttributeType) (ret RateLimitErrorGetStatusRetType, ok bool) {
+	if arg == nil {
+		return ret, false
+	}
+	return *arg, true
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func setRateLimitErrorGetStatusAttributeType(arg *RateLimitErrorGetStatusAttributeType, val RateLimitErrorGetStatusRetType) {
+	*arg = &val
+}
+
+/*
+	types and functions for timestamp
+*/
+
+// isDateTime
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetTimestampAttributeType = *time.Time
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetTimestampArgType = time.Time
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitErrorGetTimestampRetType = time.Time
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func getRateLimitErrorGetTimestampAttributeTypeOk(arg RateLimitErrorGetTimestampAttributeType) (ret RateLimitErrorGetTimestampRetType, ok bool) {
+	if arg == nil {
+		return ret, false
+	}
+	return *arg, true
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func setRateLimitErrorGetTimestampAttributeType(arg *RateLimitErrorGetTimestampAttributeType, val RateLimitErrorGetTimestampRetType) {
+	*arg = &val
+}
+
+// RateLimitError struct for RateLimitError
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type RateLimitError struct {
+	Error   RateLimitErrorGetErrorAttributeType   `json:"error,omitempty"`
+	Message RateLimitErrorGetMessageAttributeType `json:"message,omitempty"`
+	Path    RateLimitErrorGetPathAttributeType    `json:"path,omitempty"`
+	// Can be cast to int32 without loss of precision.
+	Status    RateLimitErrorGetStatusAttributeType    `json:"status,omitempty"`
+	Timestamp RateLimitErrorGetTimestampAttributeType `json:"timestamp,omitempty"`
+}
+
+// NewRateLimitError instantiates a new RateLimitError object
+// This constructor will assign default values to properties that have it defined,
+// and makes sure properties required by API are set, but the set of arguments
+// will change when the set of required properties is changed
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func NewRateLimitError() *RateLimitError {
+	this := RateLimitError{}
+	return &this
+}
+
+// NewRateLimitErrorWithDefaults instantiates a new RateLimitError object
+// This constructor will only assign default values to properties that have it defined,
+// but it doesn't guarantee that properties required by API are set
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func NewRateLimitErrorWithDefaults() *RateLimitError {
+	this := RateLimitError{}
+	return &this
+}
+
+// GetError returns the Error field value if set, zero value otherwise.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetError() (res RateLimitErrorGetErrorRetType) {
+	res, _ = o.GetErrorOk()
+	return
+}
+
+// GetErrorOk returns a tuple with the Error field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetErrorOk() (ret RateLimitErrorGetErrorRetType, ok bool) {
+	return getRateLimitErrorGetErrorAttributeTypeOk(o.Error)
+}
+
+// HasError returns a boolean if a field has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) HasError() bool {
+	_, ok := o.GetErrorOk()
+	return ok
+}
+
+// SetError gets a reference to the given string and assigns it to the Error field.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) SetError(v RateLimitErrorGetErrorRetType) {
+	setRateLimitErrorGetErrorAttributeType(&o.Error, v)
+}
+
+// GetMessage returns the Message field value if set, zero value otherwise.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetMessage() (res RateLimitErrorGetMessageRetType) {
+	res, _ = o.GetMessageOk()
+	return
+}
+
+// GetMessageOk returns a tuple with the Message field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetMessageOk() (ret RateLimitErrorGetMessageRetType, ok bool) {
+	return getRateLimitErrorGetMessageAttributeTypeOk(o.Message)
+}
+
+// HasMessage returns a boolean if a field has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) HasMessage() bool {
+	_, ok := o.GetMessageOk()
+	return ok
+}
+
+// SetMessage gets a reference to the given string and assigns it to the Message field.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) SetMessage(v RateLimitErrorGetMessageRetType) {
+	setRateLimitErrorGetMessageAttributeType(&o.Message, v)
+}
+
+// GetPath returns the Path field value if set, zero value otherwise.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetPath() (res RateLimitErrorGetPathRetType) {
+	res, _ = o.GetPathOk()
+	return
+}
+
+// GetPathOk returns a tuple with the Path field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetPathOk() (ret RateLimitErrorGetPathRetType, ok bool) {
+	return getRateLimitErrorGetPathAttributeTypeOk(o.Path)
+}
+
+// HasPath returns a boolean if a field has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) HasPath() bool {
+	_, ok := o.GetPathOk()
+	return ok
+}
+
+// SetPath gets a reference to the given string and assigns it to the Path field.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) SetPath(v RateLimitErrorGetPathRetType) {
+	setRateLimitErrorGetPathAttributeType(&o.Path, v)
+}
+
+// GetStatus returns the Status field value if set, zero value otherwise.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetStatus() (res RateLimitErrorGetStatusRetType) {
+	res, _ = o.GetStatusOk()
+	return
+}
+
+// GetStatusOk returns a tuple with the Status field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetStatusOk() (ret RateLimitErrorGetStatusRetType, ok bool) {
+	return getRateLimitErrorGetStatusAttributeTypeOk(o.Status)
+}
+
+// HasStatus returns a boolean if a field has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) HasStatus() bool {
+	_, ok := o.GetStatusOk()
+	return ok
+}
+
+// SetStatus gets a reference to the given int64 and assigns it to the Status field.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) SetStatus(v RateLimitErrorGetStatusRetType) {
+	setRateLimitErrorGetStatusAttributeType(&o.Status, v)
+}
+
+// GetTimestamp returns the Timestamp field value if set, zero value otherwise.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetTimestamp() (res RateLimitErrorGetTimestampRetType) {
+	res, _ = o.GetTimestampOk()
+	return
+}
+
+// GetTimestampOk returns a tuple with the Timestamp field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) GetTimestampOk() (ret RateLimitErrorGetTimestampRetType, ok bool) {
+	return getRateLimitErrorGetTimestampAttributeTypeOk(o.Timestamp)
+}
+
+// HasTimestamp returns a boolean if a field has been set.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) HasTimestamp() bool {
+	_, ok := o.GetTimestampOk()
+	return ok
+}
+
+// SetTimestamp gets a reference to the given time.Time and assigns it to the Timestamp field.
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o *RateLimitError) SetTimestamp(v RateLimitErrorGetTimestampRetType) {
+	setRateLimitErrorGetTimestampAttributeType(&o.Timestamp, v)
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (o RateLimitError) ToMap() (map[string]interface{}, error) {
+	toSerialize := map[string]interface{}{}
+	if val, ok := getRateLimitErrorGetErrorAttributeTypeOk(o.Error); ok {
+		toSerialize["Error"] = val
+	}
+	if val, ok := getRateLimitErrorGetMessageAttributeTypeOk(o.Message); ok {
+		toSerialize["Message"] = val
+	}
+	if val, ok := getRateLimitErrorGetPathAttributeTypeOk(o.Path); ok {
+		toSerialize["Path"] = val
+	}
+	if val, ok := getRateLimitErrorGetStatusAttributeTypeOk(o.Status); ok {
+		toSerialize["Status"] = val
+	}
+	if val, ok := getRateLimitErrorGetTimestampAttributeTypeOk(o.Timestamp); ok {
+		toSerialize["Timestamp"] = val
+	}
+	return toSerialize, nil
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+type NullableRateLimitError struct {
+	value *RateLimitError
+	isSet bool
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (v NullableRateLimitError) Get() *RateLimitError {
+	return v.value
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (v *NullableRateLimitError) Set(val *RateLimitError) {
+	v.value = val
+	v.isSet = true
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (v NullableRateLimitError) IsSet() bool {
+	return v.isSet
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (v *NullableRateLimitError) Unset() {
+	v.value = nil
+	v.isSet = false
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func NewNullableRateLimitError(val *RateLimitError) *NullableRateLimitError {
+	return &NullableRateLimitError{value: val, isSet: true}
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (v NullableRateLimitError) MarshalJSON() ([]byte, error) {
+	return json.Marshal(v.value)
+}
+
+// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
+func (v *NullableRateLimitError) UnmarshalJSON(src []byte) error {
+	v.isSet = true
+	return json.Unmarshal(src, &v.value)
+}
diff --git a/services/objectstorage/model_rate_limit_error_test.go b/services/objectstorage/model_rate_limit_error_test.go
new file mode 100644
index 0000000000..0cb5d55ae6
--- /dev/null
+++ b/services/objectstorage/model_rate_limit_error_test.go
@@ -0,0 +1,11 @@
+/*
+STACKIT Object Storage API
+
+STACKIT API to manage the Object Storage
+
+API version: 2.0.1
+*/
+
+// Code generated by OpenAPI Generator (https://openapi-generator.tech); DO NOT EDIT.
+
+package objectstorage
diff --git a/services/objectstorage/oas_commit b/services/objectstorage/oas_commit
index 8ae9a8db59..285dd15d0e 100644
--- a/services/objectstorage/oas_commit
+++ b/services/objectstorage/oas_commit
@@ -1 +1 @@
-e9fe931e91e0b8f067d5c12518398a52062ca794
+6511dc62dcbbded601fdca534eff79f7bfa7977d
diff --git a/services/objectstorage/v1api/api_default.go b/services/objectstorage/v1api/api_default.go
index 886d489089..a3ec0aaa5f 100644
--- a/services/objectstorage/v1api/api_default.go
+++ b/services/objectstorage/v1api/api_default.go
@@ -499,6 +499,17 @@ func (a *DefaultAPIService) CreateAccessKeyExecute(r ApiCreateAccessKeyRequest)
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -692,6 +703,17 @@ func (a *DefaultAPIService) CreateBucketExecute(r ApiCreateBucketRequest) (*Crea
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1028,6 +1050,17 @@ func (a *DefaultAPIService) CreateCredentialsGroupExecute(r ApiCreateCredentials
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1221,6 +1254,17 @@ func (a *DefaultAPIService) DeleteAccessKeyExecute(r ApiDeleteAccessKeyRequest)
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1389,6 +1433,17 @@ func (a *DefaultAPIService) DeleteBucketExecute(r ApiDeleteBucketRequest) (*Dele
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1699,6 +1754,17 @@ func (a *DefaultAPIService) DeleteCredentialsGroupExecute(r ApiDeleteCredentials
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2047,6 +2113,17 @@ func (a *DefaultAPIService) DisableServiceExecute(r ApiDisableServiceRequest) (*
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2217,6 +2294,17 @@ func (a *DefaultAPIService) EnableServiceExecute(r ApiEnableServiceRequest) (*Pr
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2396,6 +2484,17 @@ func (a *DefaultAPIService) GetBucketExecute(r ApiGetBucketRequest) (*GetBucketR
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3009,6 +3108,17 @@ func (a *DefaultAPIService) GetServiceStatusExecute(r ApiGetServiceStatusRequest
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3187,6 +3297,17 @@ func (a *DefaultAPIService) ListAccessKeysExecute(r ApiListAccessKeysRequest) (*
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3356,6 +3477,17 @@ func (a *DefaultAPIService) ListBucketsExecute(r ApiListBucketsRequest) (*ListBu
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3514,6 +3646,17 @@ func (a *DefaultAPIService) ListCredentialsGroupsExecute(r ApiListCredentialsGro
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
diff --git a/services/objectstorage/v1api/model_access_key.go b/services/objectstorage/v1api/model_access_key.go
index 9b430af2d5..47809a6093 100644
--- a/services/objectstorage/v1api/model_access_key.go
+++ b/services/objectstorage/v1api/model_access_key.go
@@ -20,8 +20,8 @@ var _ MappedNullable = &AccessKey{}
 
 // AccessKey struct for AccessKey
 type AccessKey struct {
-	DisplayName string `json:"displayName"`
-	Expires     string `json:"expires"`
+	DisplayName string         `json:"displayName"`
+	Expires     NullableString `json:"expires"`
 	// Identifies the pair of access key and secret access key for deletion
 	KeyId                string `json:"keyId"`
 	AdditionalProperties map[string]interface{}
@@ -33,7 +33,7 @@ type _AccessKey AccessKey
 // This constructor will assign default values to properties that have it defined,
 // and makes sure properties required by API are set, but the set of arguments
 // will change when the set of required properties is changed
-func NewAccessKey(displayName string, expires string, keyId string) *AccessKey {
+func NewAccessKey(displayName string, expires NullableString, keyId string) *AccessKey {
 	this := AccessKey{}
 	this.DisplayName = displayName
 	this.Expires = expires
@@ -74,27 +74,29 @@ func (o *AccessKey) SetDisplayName(v string) {
 }
 
 // GetExpires returns the Expires field value
+// If the value is explicit nil, the zero value for string will be returned
 func (o *AccessKey) GetExpires() string {
-	if o == nil {
+	if o == nil || o.Expires.Get() == nil {
 		var ret string
 		return ret
 	}
 
-	return o.Expires
+	return *o.Expires.Get()
 }
 
 // GetExpiresOk returns a tuple with the Expires field value
 // and a boolean to check if the value has been set.
+// NOTE: If the value is an explicit nil, `nil, true` will be returned
 func (o *AccessKey) GetExpiresOk() (*string, bool) {
 	if o == nil {
 		return nil, false
 	}
-	return &o.Expires, true
+	return o.Expires.Get(), o.Expires.IsSet()
 }
 
 // SetExpires sets field value
 func (o *AccessKey) SetExpires(v string) {
-	o.Expires = v
+	o.Expires.Set(&v)
 }
 
 // GetKeyId returns the KeyId field value
@@ -132,7 +134,7 @@ func (o AccessKey) MarshalJSON() ([]byte, error) {
 func (o AccessKey) ToMap() (map[string]interface{}, error) {
 	toSerialize := map[string]interface{}{}
 	toSerialize["displayName"] = o.DisplayName
-	toSerialize["expires"] = o.Expires
+	toSerialize["expires"] = o.Expires.Get()
 	toSerialize["keyId"] = o.KeyId
 
 	for key, value := range o.AdditionalProperties {
diff --git a/services/objectstorage/v1api/model_create_access_key_payload.go b/services/objectstorage/v1api/model_create_access_key_payload.go
index 98208395b8..64e2faba78 100644
--- a/services/objectstorage/v1api/model_create_access_key_payload.go
+++ b/services/objectstorage/v1api/model_create_access_key_payload.go
@@ -21,7 +21,7 @@ var _ MappedNullable = &CreateAccessKeyPayload{}
 // CreateAccessKeyPayload struct for CreateAccessKeyPayload
 type CreateAccessKeyPayload struct {
 	// Expiration date. Null means never expires.
-	Expires              *time.Time `json:"expires,omitempty"`
+	Expires              NullableTime `json:"expires,omitempty"`
 	AdditionalProperties map[string]interface{}
 }
 
@@ -44,36 +44,47 @@ func NewCreateAccessKeyPayloadWithDefaults() *CreateAccessKeyPayload {
 	return &this
 }
 
-// GetExpires returns the Expires field value if set, zero value otherwise.
+// GetExpires returns the Expires field value if set, zero value otherwise (both if not set or set to explicit null).
 func (o *CreateAccessKeyPayload) GetExpires() time.Time {
-	if o == nil || IsNil(o.Expires) {
+	if o == nil || IsNil(o.Expires.Get()) {
 		var ret time.Time
 		return ret
 	}
-	return *o.Expires
+	return *o.Expires.Get()
 }
 
 // GetExpiresOk returns a tuple with the Expires field value if set, nil otherwise
 // and a boolean to check if the value has been set.
+// NOTE: If the value is an explicit nil, `nil, true` will be returned
 func (o *CreateAccessKeyPayload) GetExpiresOk() (*time.Time, bool) {
-	if o == nil || IsNil(o.Expires) {
+	if o == nil {
 		return nil, false
 	}
-	return o.Expires, true
+	return o.Expires.Get(), o.Expires.IsSet()
 }
 
 // HasExpires returns a boolean if a field has been set.
 func (o *CreateAccessKeyPayload) HasExpires() bool {
-	if o != nil && !IsNil(o.Expires) {
+	if o != nil && o.Expires.IsSet() {
 		return true
 	}
 
 	return false
 }
 
-// SetExpires gets a reference to the given time.Time and assigns it to the Expires field.
+// SetExpires gets a reference to the given NullableTime and assigns it to the Expires field.
 func (o *CreateAccessKeyPayload) SetExpires(v time.Time) {
-	o.Expires = &v
+	o.Expires.Set(&v)
+}
+
+// SetExpiresNil sets the value for Expires to be an explicit nil
+func (o *CreateAccessKeyPayload) SetExpiresNil() {
+	o.Expires.Set(nil)
+}
+
+// UnsetExpires ensures that no value is present for Expires, not even an explicit nil
+func (o *CreateAccessKeyPayload) UnsetExpires() {
+	o.Expires.Unset()
 }
 
 func (o CreateAccessKeyPayload) MarshalJSON() ([]byte, error) {
@@ -86,8 +97,8 @@ func (o CreateAccessKeyPayload) MarshalJSON() ([]byte, error) {
 
 func (o CreateAccessKeyPayload) ToMap() (map[string]interface{}, error) {
 	toSerialize := map[string]interface{}{}
-	if !IsNil(o.Expires) {
-		toSerialize["expires"] = o.Expires
+	if o.Expires.IsSet() {
+		toSerialize["expires"] = o.Expires.Get()
 	}
 
 	for key, value := range o.AdditionalProperties {
diff --git a/services/objectstorage/v1api/model_create_access_key_response.go b/services/objectstorage/v1api/model_create_access_key_response.go
index 7d480ad8f8..998ee77b3f 100644
--- a/services/objectstorage/v1api/model_create_access_key_response.go
+++ b/services/objectstorage/v1api/model_create_access_key_response.go
@@ -25,7 +25,7 @@ type CreateAccessKeyResponse struct {
 	// Obfuscated access key
 	DisplayName string `json:"displayName"`
 	// Expiration date. Null means never expires.
-	Expires string `json:"expires"`
+	Expires NullableString `json:"expires"`
 	// Identifies the pair of access key and secret access key for deletion
 	KeyId string `json:"keyId"`
 	// Project ID
@@ -41,7 +41,7 @@ type _CreateAccessKeyResponse CreateAccessKeyResponse
 // This constructor will assign default values to properties that have it defined,
 // and makes sure properties required by API are set, but the set of arguments
 // will change when the set of required properties is changed
-func NewCreateAccessKeyResponse(accessKey string, displayName string, expires string, keyId string, project string, secretAccessKey string) *CreateAccessKeyResponse {
+func NewCreateAccessKeyResponse(accessKey string, displayName string, expires NullableString, keyId string, project string, secretAccessKey string) *CreateAccessKeyResponse {
 	this := CreateAccessKeyResponse{}
 	this.AccessKey = accessKey
 	this.DisplayName = displayName
@@ -109,27 +109,29 @@ func (o *CreateAccessKeyResponse) SetDisplayName(v string) {
 }
 
 // GetExpires returns the Expires field value
+// If the value is explicit nil, the zero value for string will be returned
 func (o *CreateAccessKeyResponse) GetExpires() string {
-	if o == nil {
+	if o == nil || o.Expires.Get() == nil {
 		var ret string
 		return ret
 	}
 
-	return o.Expires
+	return *o.Expires.Get()
 }
 
 // GetExpiresOk returns a tuple with the Expires field value
 // and a boolean to check if the value has been set.
+// NOTE: If the value is an explicit nil, `nil, true` will be returned
 func (o *CreateAccessKeyResponse) GetExpiresOk() (*string, bool) {
 	if o == nil {
 		return nil, false
 	}
-	return &o.Expires, true
+	return o.Expires.Get(), o.Expires.IsSet()
 }
 
 // SetExpires sets field value
 func (o *CreateAccessKeyResponse) SetExpires(v string) {
-	o.Expires = v
+	o.Expires.Set(&v)
 }
 
 // GetKeyId returns the KeyId field value
@@ -216,7 +218,7 @@ func (o CreateAccessKeyResponse) ToMap() (map[string]interface{}, error) {
 	toSerialize := map[string]interface{}{}
 	toSerialize["accessKey"] = o.AccessKey
 	toSerialize["displayName"] = o.DisplayName
-	toSerialize["expires"] = o.Expires
+	toSerialize["expires"] = o.Expires.Get()
 	toSerialize["keyId"] = o.KeyId
 	toSerialize["project"] = o.Project
 	toSerialize["secretAccessKey"] = o.SecretAccessKey
diff --git a/services/objectstorage/v1api/model_rate_limit_error.go b/services/objectstorage/v1api/model_rate_limit_error.go
new file mode 100644
index 0000000000..d1eec3022b
--- /dev/null
+++ b/services/objectstorage/v1api/model_rate_limit_error.go
@@ -0,0 +1,302 @@
+/*
+STACKIT Object Storage API
+
+STACKIT API to manage the Object Storage
+
+API version: 1.1.0
+*/
+
+// Code generated by OpenAPI Generator (https://openapi-generator.tech); DO NOT EDIT.
+
+package v1api
+
+import (
+	"encoding/json"
+	"time"
+)
+
+// checks if the RateLimitError type satisfies the MappedNullable interface at compile time
+var _ MappedNullable = &RateLimitError{}
+
+// RateLimitError struct for RateLimitError
+type RateLimitError struct {
+	Error                *string    `json:"error,omitempty"`
+	Message              *string    `json:"message,omitempty"`
+	Path                 *string    `json:"path,omitempty"`
+	Status               *int32     `json:"status,omitempty"`
+	Timestamp            *time.Time `json:"timestamp,omitempty"`
+	AdditionalProperties map[string]interface{}
+}
+
+type _RateLimitError RateLimitError
+
+// NewRateLimitError instantiates a new RateLimitError object
+// This constructor will assign default values to properties that have it defined,
+// and makes sure properties required by API are set, but the set of arguments
+// will change when the set of required properties is changed
+func NewRateLimitError() *RateLimitError {
+	this := RateLimitError{}
+	return &this
+}
+
+// NewRateLimitErrorWithDefaults instantiates a new RateLimitError object
+// This constructor will only assign default values to properties that have it defined,
+// but it doesn't guarantee that properties required by API are set
+func NewRateLimitErrorWithDefaults() *RateLimitError {
+	this := RateLimitError{}
+	return &this
+}
+
+// GetError returns the Error field value if set, zero value otherwise.
+func (o *RateLimitError) GetError() string {
+	if o == nil || IsNil(o.Error) {
+		var ret string
+		return ret
+	}
+	return *o.Error
+}
+
+// GetErrorOk returns a tuple with the Error field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetErrorOk() (*string, bool) {
+	if o == nil || IsNil(o.Error) {
+		return nil, false
+	}
+	return o.Error, true
+}
+
+// HasError returns a boolean if a field has been set.
+func (o *RateLimitError) HasError() bool {
+	if o != nil && !IsNil(o.Error) {
+		return true
+	}
+
+	return false
+}
+
+// SetError gets a reference to the given string and assigns it to the Error field.
+func (o *RateLimitError) SetError(v string) {
+	o.Error = &v
+}
+
+// GetMessage returns the Message field value if set, zero value otherwise.
+func (o *RateLimitError) GetMessage() string {
+	if o == nil || IsNil(o.Message) {
+		var ret string
+		return ret
+	}
+	return *o.Message
+}
+
+// GetMessageOk returns a tuple with the Message field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetMessageOk() (*string, bool) {
+	if o == nil || IsNil(o.Message) {
+		return nil, false
+	}
+	return o.Message, true
+}
+
+// HasMessage returns a boolean if a field has been set.
+func (o *RateLimitError) HasMessage() bool {
+	if o != nil && !IsNil(o.Message) {
+		return true
+	}
+
+	return false
+}
+
+// SetMessage gets a reference to the given string and assigns it to the Message field.
+func (o *RateLimitError) SetMessage(v string) {
+	o.Message = &v
+}
+
+// GetPath returns the Path field value if set, zero value otherwise.
+func (o *RateLimitError) GetPath() string {
+	if o == nil || IsNil(o.Path) {
+		var ret string
+		return ret
+	}
+	return *o.Path
+}
+
+// GetPathOk returns a tuple with the Path field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetPathOk() (*string, bool) {
+	if o == nil || IsNil(o.Path) {
+		return nil, false
+	}
+	return o.Path, true
+}
+
+// HasPath returns a boolean if a field has been set.
+func (o *RateLimitError) HasPath() bool {
+	if o != nil && !IsNil(o.Path) {
+		return true
+	}
+
+	return false
+}
+
+// SetPath gets a reference to the given string and assigns it to the Path field.
+func (o *RateLimitError) SetPath(v string) {
+	o.Path = &v
+}
+
+// GetStatus returns the Status field value if set, zero value otherwise.
+func (o *RateLimitError) GetStatus() int32 {
+	if o == nil || IsNil(o.Status) {
+		var ret int32
+		return ret
+	}
+	return *o.Status
+}
+
+// GetStatusOk returns a tuple with the Status field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetStatusOk() (*int32, bool) {
+	if o == nil || IsNil(o.Status) {
+		return nil, false
+	}
+	return o.Status, true
+}
+
+// HasStatus returns a boolean if a field has been set.
+func (o *RateLimitError) HasStatus() bool {
+	if o != nil && !IsNil(o.Status) {
+		return true
+	}
+
+	return false
+}
+
+// SetStatus gets a reference to the given int32 and assigns it to the Status field.
+func (o *RateLimitError) SetStatus(v int32) {
+	o.Status = &v
+}
+
+// GetTimestamp returns the Timestamp field value if set, zero value otherwise.
+func (o *RateLimitError) GetTimestamp() time.Time {
+	if o == nil || IsNil(o.Timestamp) {
+		var ret time.Time
+		return ret
+	}
+	return *o.Timestamp
+}
+
+// GetTimestampOk returns a tuple with the Timestamp field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetTimestampOk() (*time.Time, bool) {
+	if o == nil || IsNil(o.Timestamp) {
+		return nil, false
+	}
+	return o.Timestamp, true
+}
+
+// HasTimestamp returns a boolean if a field has been set.
+func (o *RateLimitError) HasTimestamp() bool {
+	if o != nil && !IsNil(o.Timestamp) {
+		return true
+	}
+
+	return false
+}
+
+// SetTimestamp gets a reference to the given time.Time and assigns it to the Timestamp field.
+func (o *RateLimitError) SetTimestamp(v time.Time) {
+	o.Timestamp = &v
+}
+
+func (o RateLimitError) MarshalJSON() ([]byte, error) {
+	toSerialize, err := o.ToMap()
+	if err != nil {
+		return []byte{}, err
+	}
+	return json.Marshal(toSerialize)
+}
+
+func (o RateLimitError) ToMap() (map[string]interface{}, error) {
+	toSerialize := map[string]interface{}{}
+	if !IsNil(o.Error) {
+		toSerialize["error"] = o.Error
+	}
+	if !IsNil(o.Message) {
+		toSerialize["message"] = o.Message
+	}
+	if !IsNil(o.Path) {
+		toSerialize["path"] = o.Path
+	}
+	if !IsNil(o.Status) {
+		toSerialize["status"] = o.Status
+	}
+	if !IsNil(o.Timestamp) {
+		toSerialize["timestamp"] = o.Timestamp
+	}
+
+	for key, value := range o.AdditionalProperties {
+		toSerialize[key] = value
+	}
+
+	return toSerialize, nil
+}
+
+func (o *RateLimitError) UnmarshalJSON(data []byte) (err error) {
+	varRateLimitError := _RateLimitError{}
+
+	err = json.Unmarshal(data, &varRateLimitError)
+
+	if err != nil {
+		return err
+	}
+
+	*o = RateLimitError(varRateLimitError)
+
+	additionalProperties := make(map[string]interface{})
+
+	if err = json.Unmarshal(data, &additionalProperties); err == nil {
+		delete(additionalProperties, "error")
+		delete(additionalProperties, "message")
+		delete(additionalProperties, "path")
+		delete(additionalProperties, "status")
+		delete(additionalProperties, "timestamp")
+		o.AdditionalProperties = additionalProperties
+	}
+
+	return err
+}
+
+type NullableRateLimitError struct {
+	value *RateLimitError
+	isSet bool
+}
+
+func (v NullableRateLimitError) Get() *RateLimitError {
+	return v.value
+}
+
+func (v *NullableRateLimitError) Set(val *RateLimitError) {
+	v.value = val
+	v.isSet = true
+}
+
+func (v NullableRateLimitError) IsSet() bool {
+	return v.isSet
+}
+
+func (v *NullableRateLimitError) Unset() {
+	v.value = nil
+	v.isSet = false
+}
+
+func NewNullableRateLimitError(val *RateLimitError) *NullableRateLimitError {
+	return &NullableRateLimitError{value: val, isSet: true}
+}
+
+func (v NullableRateLimitError) MarshalJSON() ([]byte, error) {
+	return json.Marshal(v.value)
+}
+
+func (v *NullableRateLimitError) UnmarshalJSON(src []byte) error {
+	v.isSet = true
+	return json.Unmarshal(src, &v.value)
+}
diff --git a/services/objectstorage/v2api/api_default.go b/services/objectstorage/v2api/api_default.go
index 4d548e31a8..537135e3a6 100644
--- a/services/objectstorage/v2api/api_default.go
+++ b/services/objectstorage/v2api/api_default.go
@@ -522,6 +522,17 @@ func (a *DefaultAPIService) CreateAccessKeyExecute(r ApiCreateAccessKeyRequest)
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -719,6 +730,17 @@ func (a *DefaultAPIService) CreateBucketExecute(r ApiCreateBucketRequest) (*Crea
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1063,6 +1085,17 @@ func (a *DefaultAPIService) CreateCredentialsGroupExecute(r ApiCreateCredentials
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1260,6 +1293,17 @@ func (a *DefaultAPIService) DeleteAccessKeyExecute(r ApiDeleteAccessKeyRequest)
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1432,6 +1476,17 @@ func (a *DefaultAPIService) DeleteBucketExecute(r ApiDeleteBucketRequest) (*Dele
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1749,6 +1804,17 @@ func (a *DefaultAPIService) DeleteCredentialsGroupExecute(r ApiDeleteCredentials
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2105,6 +2171,17 @@ func (a *DefaultAPIService) DisableServiceExecute(r ApiDisableServiceRequest) (*
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2279,6 +2356,17 @@ func (a *DefaultAPIService) EnableServiceExecute(r ApiEnableServiceRequest) (*Pr
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2462,6 +2550,17 @@ func (a *DefaultAPIService) GetBucketExecute(r ApiGetBucketRequest) (*GetBucketR
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3091,6 +3190,17 @@ func (a *DefaultAPIService) GetServiceStatusExecute(r ApiGetServiceStatusRequest
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3273,6 +3383,17 @@ func (a *DefaultAPIService) ListAccessKeysExecute(r ApiListAccessKeysRequest) (*
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3446,6 +3567,17 @@ func (a *DefaultAPIService) ListBucketsExecute(r ApiListBucketsRequest) (*ListBu
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3608,6 +3740,17 @@ func (a *DefaultAPIService) ListCredentialsGroupsExecute(r ApiListCredentialsGro
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 429 {
+			var v RateLimitError
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v ErrorMessage
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
diff --git a/services/objectstorage/v2api/model_access_key.go b/services/objectstorage/v2api/model_access_key.go
index 2e54f2735b..0d4bead4b4 100644
--- a/services/objectstorage/v2api/model_access_key.go
+++ b/services/objectstorage/v2api/model_access_key.go
@@ -20,8 +20,8 @@ var _ MappedNullable = &AccessKey{}
 
 // AccessKey struct for AccessKey
 type AccessKey struct {
-	DisplayName string `json:"displayName"`
-	Expires     string `json:"expires"`
+	DisplayName string         `json:"displayName"`
+	Expires     NullableString `json:"expires"`
 	// Identifies the pair of access key and secret access key for deletion
 	KeyId                string `json:"keyId"`
 	AdditionalProperties map[string]interface{}
@@ -33,7 +33,7 @@ type _AccessKey AccessKey
 // This constructor will assign default values to properties that have it defined,
 // and makes sure properties required by API are set, but the set of arguments
 // will change when the set of required properties is changed
-func NewAccessKey(displayName string, expires string, keyId string) *AccessKey {
+func NewAccessKey(displayName string, expires NullableString, keyId string) *AccessKey {
 	this := AccessKey{}
 	this.DisplayName = displayName
 	this.Expires = expires
@@ -74,27 +74,29 @@ func (o *AccessKey) SetDisplayName(v string) {
 }
 
 // GetExpires returns the Expires field value
+// If the value is explicit nil, the zero value for string will be returned
 func (o *AccessKey) GetExpires() string {
-	if o == nil {
+	if o == nil || o.Expires.Get() == nil {
 		var ret string
 		return ret
 	}
 
-	return o.Expires
+	return *o.Expires.Get()
 }
 
 // GetExpiresOk returns a tuple with the Expires field value
 // and a boolean to check if the value has been set.
+// NOTE: If the value is an explicit nil, `nil, true` will be returned
 func (o *AccessKey) GetExpiresOk() (*string, bool) {
 	if o == nil {
 		return nil, false
 	}
-	return &o.Expires, true
+	return o.Expires.Get(), o.Expires.IsSet()
 }
 
 // SetExpires sets field value
 func (o *AccessKey) SetExpires(v string) {
-	o.Expires = v
+	o.Expires.Set(&v)
 }
 
 // GetKeyId returns the KeyId field value
@@ -132,7 +134,7 @@ func (o AccessKey) MarshalJSON() ([]byte, error) {
 func (o AccessKey) ToMap() (map[string]interface{}, error) {
 	toSerialize := map[string]interface{}{}
 	toSerialize["displayName"] = o.DisplayName
-	toSerialize["expires"] = o.Expires
+	toSerialize["expires"] = o.Expires.Get()
 	toSerialize["keyId"] = o.KeyId
 
 	for key, value := range o.AdditionalProperties {
diff --git a/services/objectstorage/v2api/model_create_access_key_payload.go b/services/objectstorage/v2api/model_create_access_key_payload.go
index 31d55f4649..c32714cc2b 100644
--- a/services/objectstorage/v2api/model_create_access_key_payload.go
+++ b/services/objectstorage/v2api/model_create_access_key_payload.go
@@ -21,7 +21,7 @@ var _ MappedNullable = &CreateAccessKeyPayload{}
 // CreateAccessKeyPayload struct for CreateAccessKeyPayload
 type CreateAccessKeyPayload struct {
 	// Expiration date. Null means never expires.
-	Expires              *time.Time `json:"expires,omitempty"`
+	Expires              NullableTime `json:"expires,omitempty"`
 	AdditionalProperties map[string]interface{}
 }
 
@@ -44,36 +44,47 @@ func NewCreateAccessKeyPayloadWithDefaults() *CreateAccessKeyPayload {
 	return &this
 }
 
-// GetExpires returns the Expires field value if set, zero value otherwise.
+// GetExpires returns the Expires field value if set, zero value otherwise (both if not set or set to explicit null).
 func (o *CreateAccessKeyPayload) GetExpires() time.Time {
-	if o == nil || IsNil(o.Expires) {
+	if o == nil || IsNil(o.Expires.Get()) {
 		var ret time.Time
 		return ret
 	}
-	return *o.Expires
+	return *o.Expires.Get()
 }
 
 // GetExpiresOk returns a tuple with the Expires field value if set, nil otherwise
 // and a boolean to check if the value has been set.
+// NOTE: If the value is an explicit nil, `nil, true` will be returned
 func (o *CreateAccessKeyPayload) GetExpiresOk() (*time.Time, bool) {
-	if o == nil || IsNil(o.Expires) {
+	if o == nil {
 		return nil, false
 	}
-	return o.Expires, true
+	return o.Expires.Get(), o.Expires.IsSet()
 }
 
 // HasExpires returns a boolean if a field has been set.
 func (o *CreateAccessKeyPayload) HasExpires() bool {
-	if o != nil && !IsNil(o.Expires) {
+	if o != nil && o.Expires.IsSet() {
 		return true
 	}
 
 	return false
 }
 
-// SetExpires gets a reference to the given time.Time and assigns it to the Expires field.
+// SetExpires gets a reference to the given NullableTime and assigns it to the Expires field.
 func (o *CreateAccessKeyPayload) SetExpires(v time.Time) {
-	o.Expires = &v
+	o.Expires.Set(&v)
+}
+
+// SetExpiresNil sets the value for Expires to be an explicit nil
+func (o *CreateAccessKeyPayload) SetExpiresNil() {
+	o.Expires.Set(nil)
+}
+
+// UnsetExpires ensures that no value is present for Expires, not even an explicit nil
+func (o *CreateAccessKeyPayload) UnsetExpires() {
+	o.Expires.Unset()
 }
 
 func (o CreateAccessKeyPayload) MarshalJSON() ([]byte, error) {
@@ -86,8 +97,8 @@ func (o CreateAccessKeyPayload) MarshalJSON() ([]byte, error) {
 
 func (o CreateAccessKeyPayload) ToMap() (map[string]interface{}, error) {
 	toSerialize := map[string]interface{}{}
-	if !IsNil(o.Expires) {
-		toSerialize["expires"] = o.Expires
+	if o.Expires.IsSet() {
+		toSerialize["expires"] = o.Expires.Get()
 	}
 
 	for key, value := range o.AdditionalProperties {
diff --git a/services/objectstorage/v2api/model_rate_limit_error.go b/services/objectstorage/v2api/model_rate_limit_error.go
new file mode 100644
index 0000000000..a20c465833
--- /dev/null
+++ b/services/objectstorage/v2api/model_rate_limit_error.go
@@ -0,0 +1,302 @@
+/*
+STACKIT Object Storage API
+
+STACKIT API to manage the Object Storage
+
+API version: 2.0.1
+*/
+
+// Code generated by OpenAPI Generator (https://openapi-generator.tech); DO NOT EDIT.
+
+package v2api
+
+import (
+	"encoding/json"
+	"time"
+)
+
+// checks if the RateLimitError type satisfies the MappedNullable interface at compile time
+var _ MappedNullable = &RateLimitError{}
+
+// RateLimitError struct for RateLimitError
+type RateLimitError struct {
+	Error                *string    `json:"error,omitempty"`
+	Message              *string    `json:"message,omitempty"`
+	Path                 *string    `json:"path,omitempty"`
+	Status               *int32     `json:"status,omitempty"`
+	Timestamp            *time.Time `json:"timestamp,omitempty"`
+	AdditionalProperties map[string]interface{}
+}
+
+type _RateLimitError RateLimitError
+
+// NewRateLimitError instantiates a new RateLimitError object
+// This constructor will assign default values to properties that have it defined,
+// and makes sure properties required by API are set, but the set of arguments
+// will change when the set of required properties is changed
+func NewRateLimitError() *RateLimitError {
+	this := RateLimitError{}
+	return &this
+}
+
+// NewRateLimitErrorWithDefaults instantiates a new RateLimitError object
+// This constructor will only assign default values to properties that have it defined,
+// but it doesn't guarantee that properties required by API are set
+func NewRateLimitErrorWithDefaults() *RateLimitError {
+	this := RateLimitError{}
+	return &this
+}
+
+// GetError returns the Error field value if set, zero value otherwise.
+func (o *RateLimitError) GetError() string {
+	if o == nil || IsNil(o.Error) {
+		var ret string
+		return ret
+	}
+	return *o.Error
+}
+
+// GetErrorOk returns a tuple with the Error field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetErrorOk() (*string, bool) {
+	if o == nil || IsNil(o.Error) {
+		return nil, false
+	}
+	return o.Error, true
+}
+
+// HasError returns a boolean if a field has been set.
+func (o *RateLimitError) HasError() bool {
+	if o != nil && !IsNil(o.Error) {
+		return true
+	}
+
+	return false
+}
+
+// SetError gets a reference to the given string and assigns it to the Error field.
+func (o *RateLimitError) SetError(v string) {
+	o.Error = &v
+}
+
+// GetMessage returns the Message field value if set, zero value otherwise.
+func (o *RateLimitError) GetMessage() string {
+	if o == nil || IsNil(o.Message) {
+		var ret string
+		return ret
+	}
+	return *o.Message
+}
+
+// GetMessageOk returns a tuple with the Message field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetMessageOk() (*string, bool) {
+	if o == nil || IsNil(o.Message) {
+		return nil, false
+	}
+	return o.Message, true
+}
+
+// HasMessage returns a boolean if a field has been set.
+func (o *RateLimitError) HasMessage() bool {
+	if o != nil && !IsNil(o.Message) {
+		return true
+	}
+
+	return false
+}
+
+// SetMessage gets a reference to the given string and assigns it to the Message field.
+func (o *RateLimitError) SetMessage(v string) {
+	o.Message = &v
+}
+
+// GetPath returns the Path field value if set, zero value otherwise.
+func (o *RateLimitError) GetPath() string {
+	if o == nil || IsNil(o.Path) {
+		var ret string
+		return ret
+	}
+	return *o.Path
+}
+
+// GetPathOk returns a tuple with the Path field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetPathOk() (*string, bool) {
+	if o == nil || IsNil(o.Path) {
+		return nil, false
+	}
+	return o.Path, true
+}
+
+// HasPath returns a boolean if a field has been set.
+func (o *RateLimitError) HasPath() bool {
+	if o != nil && !IsNil(o.Path) {
+		return true
+	}
+
+	return false
+}
+
+// SetPath gets a reference to the given string and assigns it to the Path field.
+func (o *RateLimitError) SetPath(v string) {
+	o.Path = &v
+}
+
+// GetStatus returns the Status field value if set, zero value otherwise.
+func (o *RateLimitError) GetStatus() int32 {
+	if o == nil || IsNil(o.Status) {
+		var ret int32
+		return ret
+	}
+	return *o.Status
+}
+
+// GetStatusOk returns a tuple with the Status field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetStatusOk() (*int32, bool) {
+	if o == nil || IsNil(o.Status) {
+		return nil, false
+	}
+	return o.Status, true
+}
+
+// HasStatus returns a boolean if a field has been set.
+func (o *RateLimitError) HasStatus() bool {
+	if o != nil && !IsNil(o.Status) {
+		return true
+	}
+
+	return false
+}
+
+// SetStatus gets a reference to the given int32 and assigns it to the Status field.
+func (o *RateLimitError) SetStatus(v int32) {
+	o.Status = &v
+}
+
+// GetTimestamp returns the Timestamp field value if set, zero value otherwise.
+func (o *RateLimitError) GetTimestamp() time.Time {
+	if o == nil || IsNil(o.Timestamp) {
+		var ret time.Time
+		return ret
+	}
+	return *o.Timestamp
+}
+
+// GetTimestampOk returns a tuple with the Timestamp field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *RateLimitError) GetTimestampOk() (*time.Time, bool) {
+	if o == nil || IsNil(o.Timestamp) {
+		return nil, false
+	}
+	return o.Timestamp, true
+}
+
+// HasTimestamp returns a boolean if a field has been set.
+func (o *RateLimitError) HasTimestamp() bool {
+	if o != nil && !IsNil(o.Timestamp) {
+		return true
+	}
+
+	return false
+}
+
+// SetTimestamp gets a reference to the given time.Time and assigns it to the Timestamp field.
+func (o *RateLimitError) SetTimestamp(v time.Time) {
+	o.Timestamp = &v
+}
+
+func (o RateLimitError) MarshalJSON() ([]byte, error) {
+	toSerialize, err := o.ToMap()
+	if err != nil {
+		return []byte{}, err
+	}
+	return json.Marshal(toSerialize)
+}
+
+func (o RateLimitError) ToMap() (map[string]interface{}, error) {
+	toSerialize := map[string]interface{}{}
+	if !IsNil(o.Error) {
+		toSerialize["error"] = o.Error
+	}
+	if !IsNil(o.Message) {
+		toSerialize["message"] = o.Message
+	}
+	if !IsNil(o.Path) {
+		toSerialize["path"] = o.Path
+	}
+	if !IsNil(o.Status) {
+		toSerialize["status"] = o.Status
+	}
+	if !IsNil(o.Timestamp) {
+		toSerialize["timestamp"] = o.Timestamp
+	}
+
+	for key, value := range o.AdditionalProperties {
+		toSerialize[key] = value
+	}
+
+	return toSerialize, nil
+}
+
+func (o *RateLimitError) UnmarshalJSON(data []byte) (err error) {
+	varRateLimitError := _RateLimitError{}
+
+	err = json.Unmarshal(data, &varRateLimitError)
+
+	if err != nil {
+		return err
+	}
+
+	*o = RateLimitError(varRateLimitError)
+
+	additionalProperties := make(map[string]interface{})
+
+	if err = json.Unmarshal(data, &additionalProperties); err == nil {
+		delete(additionalProperties, "error")
+		delete(additionalProperties, "message")
+		delete(additionalProperties, "path")
+		delete(additionalProperties, "status")
+		delete(additionalProperties, "timestamp")
+		o.AdditionalProperties = additionalProperties
+	}
+
+	return err
+}
+
+type NullableRateLimitError struct {
+	value *RateLimitError
+	isSet bool
+}
+
+func (v NullableRateLimitError) Get() *RateLimitError {
+	return v.value
+}
+
+func (v *NullableRateLimitError) Set(val *RateLimitError) {
+	v.value = val
+	v.isSet = true
+}
+
+func (v NullableRateLimitError) IsSet() bool {
+	return v.isSet
+}
+
+func (v *NullableRateLimitError) Unset() {
+	v.value = nil
+	v.isSet = false
+}
+
+func NewNullableRateLimitError(val *RateLimitError) *NullableRateLimitError {
+	return &NullableRateLimitError{value: val, isSet: true}
+}
+
+func (v NullableRateLimitError) MarshalJSON() ([]byte, error) {
+	return json.Marshal(v.value)
+}
+
+func (v *NullableRateLimitError) UnmarshalJSON(src []byte) error {
+	v.isSet = true
+	return json.Unmarshal(src, &v.value)
+}