openapi: 3.0.3
info:
  title: Oracle Cloud Compute Alarms Shapes API
  description: Manage compute instances, images, shapes, and related resources in Oracle Cloud Infrastructure.
  version: '20160918'
  x-generated-from: documentation
  x-last-validated: '2026-04-18'
  contact:
    name: Oracle Cloud Infrastructure
    url: https://docs.oracle.com/en-us/iaas/Content/Compute/home.htm
servers:
- url: https://iaas.{region}.oraclecloud.com/20160918
  description: OCI Compute API server
  variables:
    region:
      default: us-ashburn-1
      description: OCI region identifier
security:
- ociSignature: []
tags:
- name: Shapes
paths:
  /shapes:
    get:
      operationId: listShapes
      summary: Oracle Cloud List Shapes
      description: Lists the shapes that can be used to launch an instance within the specified compartment.
      tags:
      - Shapes
      parameters:
      - name: compartmentId
        in: query
        required: true
        description: The OCID of the compartment.
        schema:
          type: string
        example: ocid1.resource.oc1.iad.abcdefg123456
      - name: limit
        in: query
        required: false
        description: Maximum number of items to return.
        schema:
          type: integer
        example: 1
      - name: page
        in: query
        required: false
        description: Pagination token.
        schema:
          type: string
        example: example-value
      responses:
        '200':
          description: Successfully retrieved list of shapes.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Shape'
              examples:
                ListShapes200Example:
                  summary: Default listShapes 200 response
                  x-microcks-default: true
                  value:
                  - shape: VM.Standard.E4.Flex
                    processorDescription: 2.55 GHz AMD EPYC 7J13
                    ocpus: 1.0
                    memoryInGBs: 16.0
                    gpus: 0
                    networkingBandwidthInGbps: 1.0
                    isFlexible: true
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    Shape:
      type: object
      description: A compute shape defining the resources available for an instance.
      properties:
        shape:
          type: string
          description: The name of the shape.
          example: VM.Standard.E4.Flex
        processorDescription:
          type: string
          description: Description of the processor.
          example: 2.55 GHz AMD EPYC 7J13
        ocpus:
          type: number
          description: Default number of OCPUs.
          example: 1.0
        memoryInGBs:
          type: number
          description: Default amount of memory in gigabytes.
          example: 16.0
        gpus:
          type: integer
          description: Number of GPUs.
          example: 0
        networkingBandwidthInGbps:
          type: number
          description: Networking bandwidth in Gbps.
          example: 1.0
        isFlexible:
          type: boolean
          description: Whether the shape is flexible.
          example: true
  securitySchemes:
    ociSignature:
      type: http
      scheme: bearer
      description: OCI request signature authentication using API signing keys.