openapi: 3.1.0
info:
  title: Microsoft Azure Cognitive Services Accounts Metadata API
  description: APIs for vision, speech, language, and decision-making AI capabilities including Computer Vision, Text Analytics, and Translator services.
  version: '3.2'
  contact:
    name: Microsoft Azure Support
    url: https://azure.microsoft.com/en-us/support/
  termsOfService: https://www.microsoft.com/en-us/legal/terms-of-use
servers:
- url: https://{region}.api.cognitive.microsoft.com
  description: Azure Cognitive Services Regional Endpoint
  variables:
    region:
      default: eastus
      description: Azure region for the Cognitive Services resource
security:
- apiKey: []
tags:
- name: Metadata
  description: Entity and attribute metadata
paths:
  /EntityDefinitions:
    get:
      operationId: listEntityDefinitions
      summary: Microsoft List entity definitions
      description: Retrieve metadata about all entities in the environment.
      tags:
      - Metadata
      parameters:
      - $ref: '#/components/parameters/select'
      - $ref: '#/components/parameters/filter'
      responses:
        '200':
          description: List of entity definitions
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EntityCollection'
        '401':
          description: Unauthorized
components:
  parameters:
    filter:
      name: $filter
      in: query
      description: OData filter expression
      schema:
        type: string
    select:
      name: $select
      in: query
      description: Properties to include
      schema:
        type: string
  schemas:
    EntityCollection:
      type: object
      properties:
        '@odata.context':
          type: string
        '@odata.nextLink':
          type: string
        value:
          type: array
          items:
            type: object
  securitySchemes:
    apiKey:
      type: apiKey
      name: Ocp-Apim-Subscription-Key
      in: header
      description: Azure Cognitive Services subscription key
externalDocs:
  description: Azure AI Services Documentation
  url: https://learn.microsoft.com/en-us/azure/ai-services/