openapi: 3.1.0
info:
  title: Azure Cosmos DB REST Collections API
  description: The Azure Cosmos DB REST API provides data plane operations for documents, collections, databases, users, and stored procedures within a Cosmos DB account using the SQL (Core) API. Authentication uses master keys or Azure AD tokens via the Authorization header.
  version: '2018-12-31'
servers:
- url: https://{account}.documents.azure.com
  variables:
    account:
      default: myaccount
      description: Cosmos DB account name
security:
- masterKey: []
tags:
- name: Collections
  description: Collections operations
paths:
  /dbs/{databaseId}/colls:
    parameters:
    - name: databaseId
      in: path
      required: true
      schema:
        type: string
    get:
      operationId: listCollections
      summary: Cosmos DB List collections
      description: Lists all collections in a database.
      tags:
      - Collections
      responses:
        '200':
          description: List of collections
          content:
            application/json:
              schema:
                type: object
    post:
      operationId: createCollection
      summary: Cosmos DB Create collection
      description: Creates a new collection.
      tags:
      - Collections
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
      responses:
        '201':
          description: Collection created
          content:
            application/json:
              schema:
                type: object
components:
  securitySchemes:
    masterKey:
      type: apiKey
      in: header
      name: Authorization
      description: Master key or resource token in Authorization header
externalDocs:
  description: Azure Cosmos DB REST API Documentation
  url: https://learn.microsoft.com/en-us/rest/api/cosmos-db/
x-generated-from: https://learn.microsoft.com/en-us/rest/api/cosmos-db/
x-generated-by: claude-crawl-2026-05-08