NexGen Cloud

NexGen Cloud Flavor API

A flavor is a machine type, its CPU count, memory, and GPU configuration. Flavors are region-specific. List flavors before deploying a virtual machine to find one available in your target region with the GPU and resource shape you need.

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Nexgen Cloud Flavor API
  version: '1.0'
  description: 'Operations tagged Flavor across 2 of this provider''s published API definitions: nexgen-cloud-hyperstack-openapi.json, nexgen-cloud-infrahub-api-openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://infrahub-api.nexgencloud.com/v1
tags:
- name: Flavor
  description: A flavor is a machine type, its CPU count, memory, and GPU configuration. Flavors are region-specific. List flavors before deploying a virtual machine to find one available in your target region with the GPU and resource shape you need.
paths:
  /core/flavors:
    get:
      tags:
      - Flavor
      summary: List Flavors
      description: 'Returns a list of available GPU/CPU virtual machine hardware configurations, comprising combinations of GPUs, CPUs, RAM, and system disk. These virtual machine configurations are referred to as [**flavors**](https://docs.hyperstack.cloud/docs/hardware/flavors). Optionally, include a `region` query parameter to return only the flavors available in the specified region; by default a list of flavors in all regions will be returned.


        In addition to the flavors visible in the UI, Hyperstack offers [**Large Root Disk Flavors**](https://docs.hyperstack.cloud/docs/hardware/large-root-disk-flavors) with a larger persistent root disk instead of ephemeral storage. These API-only flavors do not support snapshotting or hibernation and are ideal for high-I/O, containerized, or short-lived workloads.'
      operationId: List_Flavors
      parameters:
      - name: region
        in: query
        description: Filter results to the specified region.
        schema:
          type: string
      responses:
        '200':
          description: Successful retrieval of flavors list.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Flavor_List_Response'
              example:
                status: true
                message: Getting flavors successful
                data:
                - gpu: ''
                  region_name: NORWAY-1
                  flavors:
                  - id: 9876
                    name: n1-cpu-small
                    display_name: null
                    region_name: NORWAY-1
                    cpu: 4
                    ram: 4
                    disk: 100
                    ephemeral: 0
                    gpu: ''
                    gpu_count: 0
                    stock_available: true
                    created_at: '2026-05-07T09:21:55Z'
                    labels: []
                    features:
                      network_optimised: false
                      no_reboot: false
                      no_hibernation: false
                      no_snapshot: false
                      local_storage_only: false
                      api_only: false
                  - id: 2058
                    name: n1-cpu-medium
                    display_name: n1-cpu-medium
                    region_name: NORWAY-1
                    cpu: 8
                    ram: 8
                    disk: 100
                    ephemeral: null
                    gpu: ''
                    gpu_count: 0
                    stock_available: true
                    created_at: '2026-05-07T11:47:30Z'
                    labels: []
                    features:
                      network_optimised: false
                      no_reboot: false
                      no_hibernation: false
                      no_snapshot: false
                      local_storage_only: false
                      api_only: false
                  - id: 5341
                    name: n1-cpu-large
                    display_name: n1-cpu-large
                    region_name: NORWAY-1
                    cpu: 16
                    ram: 16
                    disk: 100
                    ephemeral: 0
                    gpu: ''
                    gpu_count: 0
                    stock_available: true
                    created_at: '2026-05-06T14:32:11Z'
                    labels: []
                    features:
                      network_optimised: false
                      no_reboot: false
                      no_hibernation: false
                      no_snapshot: false
                      local_storage_only: false
                      api_only: false
              examples:
                default:
                  summary: Successful response
                  value:
                    status: true
                    message: Getting flavors successful
                    data:
                    - gpu: ''
                      region_name: NORWAY-1
                      flavors:
                      - id: 9876
                        name: n1-cpu-small
                        display_name: null
                        region_name: NORWAY-1
                        cpu: 4
                        ram: 4
                        disk: 100
                        ephemeral: 0
                        gpu: ''
                        gpu_count: 0
                        stock_available: true
                        created_at: '2026-05-07T09:21:55Z'
                        labels: []
                        features:
                          network_optimised: false
                          no_reboot: false
                          no_hibernation: false
                          no_snapshot: false
                          local_storage_only: false
                          api_only: false
                      - id: 2058
                        name: n1-cpu-medium
                        display_name: n1-cpu-medium
                        region_name: NORWAY-1
                        cpu: 8
                        ram: 8
                        disk: 100
                        ephemeral: null
                        gpu: ''
                        gpu_count: 0
                        stock_available: true
                        created_at: '2026-05-07T11:47:30Z'
                        labels: []
                        features:
                          network_optimised: false
                          no_reboot: false
                          no_hibernation: false
                          no_snapshot: false
                          local_storage_only: false
                          api_only: false
                      - id: 5341
                        name: n1-cpu-large
                        display_name: n1-cpu-large
                        region_name: NORWAY-1
                        cpu: 16
                        ram: 16
                        disk: 100
                        ephemeral: 0
                        gpu: ''
                        gpu_count: 0
                        stock_available: true
                        created_at: '2026-05-06T14:32:11Z'
                        labels: []
                        features:
                          network_optimised: false
                          no_reboot: false
                          no_hibernation: false
                          no_snapshot: false
                          local_storage_only: false
                          api_only: false
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseModel'
              examples: {}
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseModel'
              examples: {}
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseModel'
              examples: {}
        '500':
          description: Internal Server Error
          content:
            application/json:
              examples: {}
      security:
      - apiKey: []
    servers:
    - url: https://infrahub-api.nexgencloud.com/v1
components:
  schemas:
    Flavor_List_Response:
      type: object
      properties:
        status:
          type: boolean
          description: Whether the request succeeded.
          example: true
        message:
          type: string
          description: Human-readable description of the result.
          example: Getting flavors successful
        data:
          type: array
          items:
            $ref: '#/components/schemas/Flavor_Item_Get_Response'
          description: List of available flavors grouped by region.
    LableResonse:
      type: object
      properties:
        id:
          type: integer
          description: Unique numeric identifier.
        label:
          type: string
          description: The label name (e.g. `k8s`).
    Flavor_Item_Get_Response:
      type: object
      properties:
        gpu:
          type: string
          description: GPU model name. Empty string if the flavor has no GPU.
          example: ''
        region_name:
          type: string
          description: Region the resource is in (for example, `NORWAY-1`, `CANADA-1`, `US-1`).
          example: NORWAY-1
        flavors:
          type: array
          items:
            $ref: '#/components/schemas/Flavor_Fields'
          description: An array of CPU-only flavor objects available for use as master nodes.
    ErrorResponseModel:
      type: object
      properties:
        status:
          type: boolean
          default: false
          description: Whether the request succeeded.
        message:
          type: string
          description: Human-readable description of the result.
        error_reason:
          type: string
          description: Short machine-readable reason code when the request fails.
    Flavor_Fields:
      type: object
      properties:
        id:
          type: integer
          description: Unique numeric identifier.
          example: 3287
        name:
          type: string
          description: Name of the flavor.
          example: n1-cpu-small
        display_name:
          type:
          - string
          - 'null'
          description: Human-readable display name. Falls back to `name` if not set.
        region_name:
          type: string
          description: Region the resource is in (for example, `NORWAY-1`, `CANADA-1`, `US-1`).
          example: NORWAY-1
        cpu:
          type: integer
          description: Number of vCPU cores.
          example: 4
        ram:
          type: integer
          description: Memory allocated to the flavor, in GB.
          example: 4
        disk:
          type: integer
          description: Root disk capacity, in GB.
          example: 100
        ephemeral:
          type: integer
          description: Ephemeral disk capacity, in GB. Cleared when the VM is deleted.
          example: 0
        gpu:
          type: string
          description: GPU model name. Empty string if the flavor has no GPU.
          example: ''
        gpu_count:
          type: integer
          description: Number of GPUs attached to the flavor.
          example: 0
        stock_available:
          type: boolean
          description: Whether stock is currently available for this flavor in the region.
          example: true
        created_at:
          type: string
          format: date-time
          description: ISO 8601 UTC timestamp marking when the resource was created.
          example: '2026-05-06T16:04:09Z'
        labels:
          type: array
          items:
            $ref: '#/components/schemas/LableResonse'
          description: Optional user-supplied tags for grouping or filtering.
        features:
          type: object
          properties: {}
          description: Optional feature flags applicable to the resource.
    Flavor_List_Response_2:
      type: object
      properties:
        status:
          type: boolean
        message:
          type: string
        data:
          type: array
          items:
            $ref: '#/components/schemas/Flavor_Item_Get_Response_2'
    LableResonse_2:
      type: object
      properties:
        id:
          type: integer
        label:
          type: string
    Flavor_Item_Get_Response_2:
      type: object
      properties:
        gpu:
          type: string
        region_name:
          type: string
        flavors:
          type: array
          items:
            $ref: '#/components/schemas/Flavor_Fields_2'
    ErrorResponseModel_2:
      type: object
      properties:
        status:
          type: boolean
          default: false
        message:
          type: string
        error_reason:
          type: string
    Flavor_Fields_2:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        display_name:
          type: string
        region_name:
          type: string
        cpu:
          type: integer
        ram:
          type: integer
        disk:
          type: integer
        ephemeral:
          type: integer
        gpu:
          type: string
        gpu_count:
          type: integer
        stock_available:
          type: boolean
        created_at:
          type: string
          format: date-time
        labels:
          type: array
          items:
            $ref: '#/components/schemas/LableResonse_2'
        features:
          type: object
          properties: {}
  securitySchemes:
    apiKey:
      type: apiKey
      name: api_key
      in: header
      description: 'API-key authentication. Pass your API key as the `api_key` header value (e.g., `api_key: YOUR_API_KEY`, no prefix). [Generate a key in the Hyperstack console](https://console.hyperstack.cloud/api-keys). The key is personal to your user account and works across every environment and region in your organization.'
    accessToken:
      type: apiKey
      description: Bearer Token
      name: Authorization
      in: header
x-refined-from:
- nexgen-cloud-hyperstack-openapi.json
- nexgen-cloud-infrahub-api-openapi.json