diff --git a/api/client/size/list_size_reservations_parameters.go b/api/client/size/list_size_reservations_parameters.go
new file mode 100644
index 0000000..4bc31a9
--- /dev/null
+++ b/api/client/size/list_size_reservations_parameters.go
@@ -0,0 +1,128 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+package size
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"github.com/go-openapi/errors"
+	"github.com/go-openapi/runtime"
+	cr "github.com/go-openapi/runtime/client"
+	"github.com/go-openapi/strfmt"
+)
+
+// NewListSizeReservationsParams creates a new ListSizeReservationsParams object,
+// with the default timeout for this client.
+//
+// Default values are not hydrated, since defaults are normally applied by the API server side.
+//
+// To enforce default values in parameter, use SetDefaults or WithDefaults.
+func NewListSizeReservationsParams() *ListSizeReservationsParams {
+	return &ListSizeReservationsParams{
+		timeout: cr.DefaultTimeout,
+	}
+}
+
+// NewListSizeReservationsParamsWithTimeout creates a new ListSizeReservationsParams object
+// with the ability to set a timeout on a request.
+func NewListSizeReservationsParamsWithTimeout(timeout time.Duration) *ListSizeReservationsParams {
+	return &ListSizeReservationsParams{
+		timeout: timeout,
+	}
+}
+
+// NewListSizeReservationsParamsWithContext creates a new ListSizeReservationsParams object
+// with the ability to set a context for a request.
+func NewListSizeReservationsParamsWithContext(ctx context.Context) *ListSizeReservationsParams {
+	return &ListSizeReservationsParams{
+		Context: ctx,
+	}
+}
+
+// NewListSizeReservationsParamsWithHTTPClient creates a new ListSizeReservationsParams object
+// with the ability to set a custom HTTPClient for a request.
+func NewListSizeReservationsParamsWithHTTPClient(client *http.Client) *ListSizeReservationsParams {
+	return &ListSizeReservationsParams{
+		HTTPClient: client,
+	}
+}
+
+/*
+ListSizeReservationsParams contains all the parameters to send to the API endpoint
+
+	for the list size reservations operation.
+
+	Typically these are written to a http.Request.
+*/
+type ListSizeReservationsParams struct {
+	timeout    time.Duration
+	Context    context.Context
+	HTTPClient *http.Client
+}
+
+// WithDefaults hydrates default values in the list size reservations params (not the query body).
+//
+// All values with no default are reset to their zero value.
+func (o *ListSizeReservationsParams) WithDefaults() *ListSizeReservationsParams {
+	o.SetDefaults()
+	return o
+}
+
+// SetDefaults hydrates default values in the list size reservations params (not the query body).
+//
+// All values with no default are reset to their zero value.
+func (o *ListSizeReservationsParams) SetDefaults() {
+	// no default values defined for this parameter
+}
+
+// WithTimeout adds the timeout to the list size reservations params
+func (o *ListSizeReservationsParams) WithTimeout(timeout time.Duration) *ListSizeReservationsParams {
+	o.SetTimeout(timeout)
+	return o
+}
+
+// SetTimeout adds the timeout to the list size reservations params
+func (o *ListSizeReservationsParams) SetTimeout(timeout time.Duration) {
+	o.timeout = timeout
+}
+
+// WithContext adds the context to the list size reservations params
+func (o *ListSizeReservationsParams) WithContext(ctx context.Context) *ListSizeReservationsParams {
+	o.SetContext(ctx)
+	return o
+}
+
+// SetContext adds the context to the list size reservations params
+func (o *ListSizeReservationsParams) SetContext(ctx context.Context) {
+	o.Context = ctx
+}
+
+// WithHTTPClient adds the HTTPClient to the list size reservations params
+func (o *ListSizeReservationsParams) WithHTTPClient(client *http.Client) *ListSizeReservationsParams {
+	o.SetHTTPClient(client)
+	return o
+}
+
+// SetHTTPClient adds the HTTPClient to the list size reservations params
+func (o *ListSizeReservationsParams) SetHTTPClient(client *http.Client) {
+	o.HTTPClient = client
+}
+
+// WriteToRequest writes these params to a swagger request
+func (o *ListSizeReservationsParams) WriteToRequest(r runtime.ClientRequest, reg strfmt.Registry) error {
+
+	if err := r.SetTimeout(o.timeout); err != nil {
+		return err
+	}
+	var res []error
+
+	if len(res) > 0 {
+		return errors.CompositeValidationError(res...)
+	}
+	return nil
+}
diff --git a/api/client/size/list_size_reservations_responses.go b/api/client/size/list_size_reservations_responses.go
new file mode 100644
index 0000000..33be496
--- /dev/null
+++ b/api/client/size/list_size_reservations_responses.go
@@ -0,0 +1,181 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+package size
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/go-openapi/runtime"
+	"github.com/go-openapi/strfmt"
+
+	"github.com/metal-stack/metal-go/api/models"
+	"github.com/metal-stack/metal-lib/httperrors"
+)
+
+// ListSizeReservationsReader is a Reader for the ListSizeReservations structure.
+type ListSizeReservationsReader struct {
+	formats strfmt.Registry
+}
+
+// ReadResponse reads a server response into the received o.
+func (o *ListSizeReservationsReader) ReadResponse(response runtime.ClientResponse, consumer runtime.Consumer) (interface{}, error) {
+	switch response.Code() {
+	case 200:
+		result := NewListSizeReservationsOK()
+		if err := result.readResponse(response, consumer, o.formats); err != nil {
+			return nil, err
+		}
+		return result, nil
+	default:
+		result := NewListSizeReservationsDefault(response.Code())
+		if err := result.readResponse(response, consumer, o.formats); err != nil {
+			return nil, err
+		}
+		if response.Code()/100 == 2 {
+			return result, nil
+		}
+		return nil, result
+	}
+}
+
+// NewListSizeReservationsOK creates a ListSizeReservationsOK with default headers values
+func NewListSizeReservationsOK() *ListSizeReservationsOK {
+	return &ListSizeReservationsOK{}
+}
+
+/*
+ListSizeReservationsOK describes a response with status code 200, with default header values.
+
+OK
+*/
+type ListSizeReservationsOK struct {
+	Payload []*models.V1SizeReservationResponse
+}
+
+// IsSuccess returns true when this list size reservations o k response has a 2xx status code
+func (o *ListSizeReservationsOK) IsSuccess() bool {
+	return true
+}
+
+// IsRedirect returns true when this list size reservations o k response has a 3xx status code
+func (o *ListSizeReservationsOK) IsRedirect() bool {
+	return false
+}
+
+// IsClientError returns true when this list size reservations o k response has a 4xx status code
+func (o *ListSizeReservationsOK) IsClientError() bool {
+	return false
+}
+
+// IsServerError returns true when this list size reservations o k response has a 5xx status code
+func (o *ListSizeReservationsOK) IsServerError() bool {
+	return false
+}
+
+// IsCode returns true when this list size reservations o k response a status code equal to that given
+func (o *ListSizeReservationsOK) IsCode(code int) bool {
+	return code == 200
+}
+
+// Code gets the status code for the list size reservations o k response
+func (o *ListSizeReservationsOK) Code() int {
+	return 200
+}
+
+func (o *ListSizeReservationsOK) Error() string {
+	return fmt.Sprintf("[GET /v1/size/reservations][%d] listSizeReservationsOK  %+v", 200, o.Payload)
+}
+
+func (o *ListSizeReservationsOK) String() string {
+	return fmt.Sprintf("[GET /v1/size/reservations][%d] listSizeReservationsOK  %+v", 200, o.Payload)
+}
+
+func (o *ListSizeReservationsOK) GetPayload() []*models.V1SizeReservationResponse {
+	return o.Payload
+}
+
+func (o *ListSizeReservationsOK) readResponse(response runtime.ClientResponse, consumer runtime.Consumer, formats strfmt.Registry) error {
+
+	// response payload
+	if err := consumer.Consume(response.Body(), &o.Payload); err != nil && err != io.EOF {
+		return err
+	}
+
+	return nil
+}
+
+// NewListSizeReservationsDefault creates a ListSizeReservationsDefault with default headers values
+func NewListSizeReservationsDefault(code int) *ListSizeReservationsDefault {
+	return &ListSizeReservationsDefault{
+		_statusCode: code,
+	}
+}
+
+/*
+ListSizeReservationsDefault describes a response with status code -1, with default header values.
+
+Error
+*/
+type ListSizeReservationsDefault struct {
+	_statusCode int
+
+	Payload *httperrors.HTTPErrorResponse
+}
+
+// IsSuccess returns true when this list size reservations default response has a 2xx status code
+func (o *ListSizeReservationsDefault) IsSuccess() bool {
+	return o._statusCode/100 == 2
+}
+
+// IsRedirect returns true when this list size reservations default response has a 3xx status code
+func (o *ListSizeReservationsDefault) IsRedirect() bool {
+	return o._statusCode/100 == 3
+}
+
+// IsClientError returns true when this list size reservations default response has a 4xx status code
+func (o *ListSizeReservationsDefault) IsClientError() bool {
+	return o._statusCode/100 == 4
+}
+
+// IsServerError returns true when this list size reservations default response has a 5xx status code
+func (o *ListSizeReservationsDefault) IsServerError() bool {
+	return o._statusCode/100 == 5
+}
+
+// IsCode returns true when this list size reservations default response a status code equal to that given
+func (o *ListSizeReservationsDefault) IsCode(code int) bool {
+	return o._statusCode == code
+}
+
+// Code gets the status code for the list size reservations default response
+func (o *ListSizeReservationsDefault) Code() int {
+	return o._statusCode
+}
+
+func (o *ListSizeReservationsDefault) Error() string {
+	return fmt.Sprintf("[GET /v1/size/reservations][%d] listSizeReservations default  %+v", o._statusCode, o.Payload)
+}
+
+func (o *ListSizeReservationsDefault) String() string {
+	return fmt.Sprintf("[GET /v1/size/reservations][%d] listSizeReservations default  %+v", o._statusCode, o.Payload)
+}
+
+func (o *ListSizeReservationsDefault) GetPayload() *httperrors.HTTPErrorResponse {
+	return o.Payload
+}
+
+func (o *ListSizeReservationsDefault) readResponse(response runtime.ClientResponse, consumer runtime.Consumer, formats strfmt.Registry) error {
+
+	o.Payload = new(httperrors.HTTPErrorResponse)
+
+	// response payload
+	if err := consumer.Consume(response.Body(), o.Payload); err != nil && err != io.EOF {
+		return err
+	}
+
+	return nil
+}
diff --git a/api/client/size/size_client.go b/api/client/size/size_client.go
index 729c42b..ee9f211 100644
--- a/api/client/size/size_client.go
+++ b/api/client/size/size_client.go
@@ -36,6 +36,8 @@ type ClientService interface {
 
 	FromHardware(params *FromHardwareParams, authInfo runtime.ClientAuthInfoWriter, opts ...ClientOption) (*FromHardwareOK, error)
 
+	ListSizeReservations(params *ListSizeReservationsParams, authInfo runtime.ClientAuthInfoWriter, opts ...ClientOption) (*ListSizeReservationsOK, error)
+
 	ListSizes(params *ListSizesParams, authInfo runtime.ClientAuthInfoWriter, opts ...ClientOption) (*ListSizesOK, error)
 
 	Suggest(params *SuggestParams, authInfo runtime.ClientAuthInfoWriter, opts ...ClientOption) (*SuggestOK, error)
@@ -197,6 +199,44 @@ func (a *Client) FromHardware(params *FromHardwareParams, authInfo runtime.Clien
 	return nil, runtime.NewAPIError("unexpected success response: content available as default response in error", unexpectedSuccess, unexpectedSuccess.Code())
 }
 
+/*
+ListSizeReservations gets all size reservations
+*/
+func (a *Client) ListSizeReservations(params *ListSizeReservationsParams, authInfo runtime.ClientAuthInfoWriter, opts ...ClientOption) (*ListSizeReservationsOK, error) {
+	// TODO: Validate the params before sending
+	if params == nil {
+		params = NewListSizeReservationsParams()
+	}
+	op := &runtime.ClientOperation{
+		ID:                 "listSizeReservations",
+		Method:             "GET",
+		PathPattern:        "/v1/size/reservations",
+		ProducesMediaTypes: []string{"application/json"},
+		ConsumesMediaTypes: []string{"application/json"},
+		Schemes:            []string{"http"},
+		Params:             params,
+		Reader:             &ListSizeReservationsReader{formats: a.formats},
+		AuthInfo:           authInfo,
+		Context:            params.Context,
+		Client:             params.HTTPClient,
+	}
+	for _, opt := range opts {
+		opt(op)
+	}
+
+	result, err := a.transport.Submit(op)
+	if err != nil {
+		return nil, err
+	}
+	success, ok := result.(*ListSizeReservationsOK)
+	if ok {
+		return success, nil
+	}
+	// unexpected success response
+	unexpectedSuccess := result.(*ListSizeReservationsDefault)
+	return nil, runtime.NewAPIError("unexpected success response: content available as default response in error", unexpectedSuccess, unexpectedSuccess.Code())
+}
+
 /*
 ListSizes gets all sizes
 */
diff --git a/api/models/v1_size_reservation_response.go b/api/models/v1_size_reservation_response.go
new file mode 100644
index 0000000..c7795bf
--- /dev/null
+++ b/api/models/v1_size_reservation_response.go
@@ -0,0 +1,190 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+package models
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"context"
+
+	"github.com/go-openapi/errors"
+	"github.com/go-openapi/strfmt"
+	"github.com/go-openapi/swag"
+	"github.com/go-openapi/validate"
+)
+
+// V1SizeReservationResponse v1 size reservation response
+//
+// swagger:model v1.SizeReservationResponse
+type V1SizeReservationResponse struct {
+
+	// the partition id of this size reservation
+	// Required: true
+	Partitionid *string `json:"partitionid" yaml:"partitionid"`
+
+	// the amount of allocations of this project referenced by this size reservation
+	// Required: true
+	Projectallocations *int32 `json:"projectallocations" yaml:"projectallocations"`
+
+	// the project id of this size reservation
+	// Required: true
+	Projectid *string `json:"projectid" yaml:"projectid"`
+
+	// the project name of this size reservation
+	// Required: true
+	Projectname *string `json:"projectname" yaml:"projectname"`
+
+	// the amount of reservations of this size reservation
+	// Required: true
+	Reservations *int32 `json:"reservations" yaml:"reservations"`
+
+	// the size id of this size reservation
+	// Required: true
+	Sizeid *string `json:"sizeid" yaml:"sizeid"`
+
+	// the tenant of this size reservation
+	// Required: true
+	Tenant *string `json:"tenant" yaml:"tenant"`
+
+	// the used amount of reservations of this size reservation
+	// Required: true
+	Usedreservations *int32 `json:"usedreservations" yaml:"usedreservations"`
+}
+
+// Validate validates this v1 size reservation response
+func (m *V1SizeReservationResponse) Validate(formats strfmt.Registry) error {
+	var res []error
+
+	if err := m.validatePartitionid(formats); err != nil {
+		res = append(res, err)
+	}
+
+	if err := m.validateProjectallocations(formats); err != nil {
+		res = append(res, err)
+	}
+
+	if err := m.validateProjectid(formats); err != nil {
+		res = append(res, err)
+	}
+
+	if err := m.validateProjectname(formats); err != nil {
+		res = append(res, err)
+	}
+
+	if err := m.validateReservations(formats); err != nil {
+		res = append(res, err)
+	}
+
+	if err := m.validateSizeid(formats); err != nil {
+		res = append(res, err)
+	}
+
+	if err := m.validateTenant(formats); err != nil {
+		res = append(res, err)
+	}
+
+	if err := m.validateUsedreservations(formats); err != nil {
+		res = append(res, err)
+	}
+
+	if len(res) > 0 {
+		return errors.CompositeValidationError(res...)
+	}
+	return nil
+}
+
+func (m *V1SizeReservationResponse) validatePartitionid(formats strfmt.Registry) error {
+
+	if err := validate.Required("partitionid", "body", m.Partitionid); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *V1SizeReservationResponse) validateProjectallocations(formats strfmt.Registry) error {
+
+	if err := validate.Required("projectallocations", "body", m.Projectallocations); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *V1SizeReservationResponse) validateProjectid(formats strfmt.Registry) error {
+
+	if err := validate.Required("projectid", "body", m.Projectid); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *V1SizeReservationResponse) validateProjectname(formats strfmt.Registry) error {
+
+	if err := validate.Required("projectname", "body", m.Projectname); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *V1SizeReservationResponse) validateReservations(formats strfmt.Registry) error {
+
+	if err := validate.Required("reservations", "body", m.Reservations); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *V1SizeReservationResponse) validateSizeid(formats strfmt.Registry) error {
+
+	if err := validate.Required("sizeid", "body", m.Sizeid); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *V1SizeReservationResponse) validateTenant(formats strfmt.Registry) error {
+
+	if err := validate.Required("tenant", "body", m.Tenant); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *V1SizeReservationResponse) validateUsedreservations(formats strfmt.Registry) error {
+
+	if err := validate.Required("usedreservations", "body", m.Usedreservations); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// ContextValidate validates this v1 size reservation response based on context it is used
+func (m *V1SizeReservationResponse) ContextValidate(ctx context.Context, formats strfmt.Registry) error {
+	return nil
+}
+
+// MarshalBinary interface implementation
+func (m *V1SizeReservationResponse) MarshalBinary() ([]byte, error) {
+	if m == nil {
+		return nil, nil
+	}
+	return swag.WriteJSON(m)
+}
+
+// UnmarshalBinary interface implementation
+func (m *V1SizeReservationResponse) UnmarshalBinary(b []byte) error {
+	var res V1SizeReservationResponse
+	if err := swag.ReadJSON(b, &res); err != nil {
+		return err
+	}
+	*m = res
+	return nil
+}
diff --git a/metal-api.json b/metal-api.json
index e1dec32..9b4f4a9 100644
--- a/metal-api.json
+++ b/metal-api.json
@@ -4528,6 +4528,55 @@
         "projectid"
       ]
     },
+    "v1.SizeReservationResponse": {
+      "properties": {
+        "partitionid": {
+          "description": "the partition id of this size reservation",
+          "type": "string"
+        },
+        "projectallocations": {
+          "description": "the amount of allocations of this project referenced by this size reservation",
+          "format": "int32",
+          "type": "integer"
+        },
+        "projectid": {
+          "description": "the project id of this size reservation",
+          "type": "string"
+        },
+        "projectname": {
+          "description": "the project name of this size reservation",
+          "type": "string"
+        },
+        "reservations": {
+          "description": "the amount of reservations of this size reservation",
+          "format": "int32",
+          "type": "integer"
+        },
+        "sizeid": {
+          "description": "the size id of this size reservation",
+          "type": "string"
+        },
+        "tenant": {
+          "description": "the tenant of this size reservation",
+          "type": "string"
+        },
+        "usedreservations": {
+          "description": "the used amount of reservations of this size reservation",
+          "format": "int32",
+          "type": "integer"
+        }
+      },
+      "required": [
+        "partitionid",
+        "projectallocations",
+        "projectid",
+        "projectname",
+        "reservations",
+        "sizeid",
+        "tenant",
+        "usedreservations"
+      ]
+    },
     "v1.SizeResponse": {
       "properties": {
         "changed": {
@@ -8885,6 +8934,38 @@
         ]
       }
     },
+    "/v1/size/reservations": {
+      "get": {
+        "consumes": [
+          "application/json"
+        ],
+        "operationId": "listSizeReservations",
+        "produces": [
+          "application/json"
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "items": {
+                "$ref": "#/definitions/v1.SizeReservationResponse"
+              },
+              "type": "array"
+            }
+          },
+          "default": {
+            "description": "Error",
+            "schema": {
+              "$ref": "#/definitions/httperrors.HTTPErrorResponse"
+            }
+          }
+        },
+        "summary": "get all size reservations",
+        "tags": [
+          "size"
+        ]
+      }
+    },
     "/v1/size/suggest": {
       "post": {
         "consumes": [