openapi: 3.1.0
info:
  title: OpenStack Identity (Keystone) API v3 Domains Versions API
  description: Keystone is the OpenStack Identity service that provides authentication, authorization, and a service catalog for an OpenStack cloud. Tokens issued by Keystone are required to call any other OpenStack service API. The v3 API exposes endpoints for tokens, users, groups, projects, domains, roles, role assignments, services, endpoints, and the service catalog.
  version: '3'
  contact:
    name: OpenStack Identity (Keystone)
    url: https://docs.openstack.org/keystone/
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
servers:
- url: https://{keystone-host}:5000/v3
  description: Keystone Identity API v3 endpoint (deployment specific)
  variables:
    keystone-host:
      default: keystone.example.com
security:
- TokenAuth: []
tags:
- name: Versions
  description: API version discovery.
paths:
  /:
    get:
      operationId: listVersions
      summary: List API versions
      tags:
      - Versions
      security: []
      responses:
        '200':
          description: Supported API versions.
components:
  securitySchemes:
    TokenAuth:
      type: apiKey
      in: header
      name: X-Auth-Token
externalDocs:
  description: Keystone v3 API reference
  url: https://docs.openstack.org/api-ref/identity/v3/