Microsoft Power Platform Metadata API

The Metadata API from Microsoft Power Platform — 3 operation(s) for metadata.

Documentation GitHub OpenAPI

Specifications

https://raw.githubusercontent.com/api-evangelist/microsoft-power-platform/refs/heads/main/openapi/microsoft-power-platform-metadata-api-openapi.yml

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OpenAPI Specification

openapi: 3.1.0
info:
  title: Microsoft Dataverse Web Metadata API
  description: The Microsoft Dataverse Web API implements OData v4 over the Dataverse data platform that powers Microsoft Power Platform (Power Apps, Power Automate, Dynamics 365). It supports CRUD operations on tables, execution of actions and functions, and metadata queries. Authentication is via Microsoft Entra ID OAuth 2.0 against the org URL.
  version: '9.2'
servers:
- url: https://{org}.api.crm.dynamics.com/api/data/v9.2
  description: Dataverse Web API for a specific environment
  variables:
    org:
      default: contoso
      description: The Dataverse organization name (subdomain).
security:
- oauth2: []
tags:
- name: Metadata
paths:
  /EntityDefinitions:
    get:
      tags:
      - Metadata
      summary: List all table (entity) definitions
      operationId: listEntityDefinitions
      responses:
        '200':
          description: Collection of EntityMetadata
          content:
            application/json:
              schema:
                type: object
  /EntityDefinitions(LogicalName='{logicalName}'):
    get:
      tags:
      - Metadata
      summary: Get metadata for a specific table by logical name
      operationId: getEntityDefinition
      parameters:
      - name: logicalName
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: EntityMetadata
          content:
            application/json:
              schema:
                type: object
        '404':
          description: Not found
  /WhoAmI:
    get:
      tags:
      - Metadata
      summary: Identifies the currently authenticated user
      operationId: whoAmI
      responses:
        '200':
          description: WhoAmIResponse
          content:
            application/json:
              schema:
                type: object
                properties:
                  UserId:
                    type: string
                    format: uuid
                  BusinessUnitId:
                    type: string
                    format: uuid
                  OrganizationId:
                    type: string
                    format: uuid
components:
  securitySchemes:
    oauth2:
      type: oauth2
      description: Microsoft Entra ID OAuth 2.0. Use the resource/scope corresponding to the Dataverse environment, e.g. https://{org}.api.crm.dynamics.com/.default for client credentials.
      flows:
        authorizationCode:
          authorizationUrl: https://login.microsoftonline.com/common/oauth2/v2.0/authorize
          tokenUrl: https://login.microsoftonline.com/common/oauth2/v2.0/token
          scopes:
            https://{org}.api.crm.dynamics.com/.default: Full Dataverse access scoped to the environment
x-generated-from: https://learn.microsoft.com/en-us/power-apps/developer/data-platform/webapi/overview
x-generated-by: claude-genwave10-08-2026-05-23