Social — entry 020 of 38
Microsoft Graph
Microsoft Graph is the unified REST endpoint for Microsoft 365, Windows, and Entra ID (Azure AD) data — mail, calendar, files, Teams, users, groups, and device management all live under a single v1.0 or beta namespace. Every call needs an OAuth 2.0 bearer token issued through the Microsoft identity platform and scoped to the specific resources the app may touch; some resources additionally require an appropriate Microsoft 365 or Entra ID premium license behind the scenes.
GreatAPIs Score
Embed this badge
<a href="https://greatapis.com/api/microsoft-graph/"><img src="https://greatapis.com/badge/microsoft-graph.svg" alt="Scored 54 on greatapis.com"></a>Auth quickstart
- Register an app / run the OAuth flow to obtain a bearer token.
- Send it as an Authorization header
Authorization: Bearer <token>
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.
Developer reference
Global limit across all tiers: 130,000 requests per 10 seconds per app across all tenants; additional service-specific limits are evaluated simultaneously and the first one reached triggers a 429, per learn.microsoft.com/en-us/graph/throttling-limits