Microsoft Graph
API management tools
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What is Microsoft Graph
Microsoft Graph is a RESTful API platform that provides a unified endpoint to access data and services across Microsoft 365 and related Microsoft cloud offerings. It is used by developers and IT teams to build integrations, automate workflows, and create applications that read and write organizational resources such as users, groups, mail, calendars, files, and Teams data. The service relies on Microsoft Entra ID (Azure AD) for authentication/authorization and supports delegated and application permissions with fine-grained scopes. It differentiates from general-purpose API management products by focusing on Microsoft 365 data access rather than acting as an API gateway for arbitrary back-end services.
Unified Microsoft 365 endpoint
Microsoft Graph consolidates access to many Microsoft 365 workloads behind a single API surface and consistent authentication model. This reduces the need to integrate separately with multiple product-specific endpoints. It supports common enterprise objects (users, groups, directory roles) alongside workload data (mail, calendar, files, Teams). For organizations standardized on Microsoft 365, this can simplify integration architecture.
Enterprise identity and permissions
Graph uses Microsoft Entra ID for OAuth 2.0 authentication and supports delegated and application access patterns. Permissions are expressed as scopes and app roles, and many high-privilege permissions require admin consent. This aligns with enterprise governance practices such as conditional access and tenant-wide app management. The model is well-suited to multi-user business applications that must respect organizational access controls.
Broad SDK and tooling support
Microsoft provides SDKs for multiple languages and integrates Graph into common developer workflows (for example, via Microsoft identity libraries and API explorers). The API is documented with OpenAPI-style references and supports common REST patterns such as pagination and filtering on many resources. This can reduce client-side boilerplate compared with hand-rolled HTTP integrations. It also supports webhooks (change notifications) for event-driven scenarios on supported resources.
Not a full API gateway
Microsoft Graph does not function as an API gateway for publishing, securing, throttling, and monetizing arbitrary internal or external APIs. Organizations that need centralized API lifecycle management across heterogeneous back ends typically still require a separate API management layer. Graph primarily exposes Microsoft cloud data and services rather than managing customer-defined APIs. This limits its fit as a standalone API management tool.
Coverage varies by workload
Feature completeness differs across Microsoft 365 services and endpoints, and some capabilities may be unavailable or only present in beta endpoints. Developers may need to mix Graph with other Microsoft APIs or service-specific approaches for certain scenarios. This can complicate integration design and testing. API behavior and supported query options can also vary by resource type.
Complex governance and throttling
Permission selection, admin consent, and tenant policies can add setup time and require coordination with identity administrators. The service enforces throttling and service protection limits that can affect high-volume integrations. Handling retries, backoff, and batching becomes necessary for reliability at scale. These constraints are manageable but add engineering overhead compared with simpler, single-application APIs.
Plan & Pricing
Pricing model: Pay-as-you-go Free tier/trial: Evaluation mode (seeded free capacity for some metered APIs) and time-limited Microsoft 365/Azure trials referenced below. Example costs:
- Microsoft Graph Data Connect — $0.75 per 1,000 objects extracted (consumption billed monthly, pay-as-you-go). Note: there was a limited “first 100K objects free” promo that ran Aug 1, 2023–Jul 31, 2024 as announced by Microsoft. Feature/usage rounding and billing details are in the Data Connect FAQ.
- Microsoft 365 APIs Extended Usage (to go beyond daily quotas) — cost per 1,000 requests: Microsoft Exchange $0.002; Microsoft Teams Calling $0.05; Microsoft Teams Messaging $0.01; Microsoft Teams Presence $0.01.
- Teams APIs (payment model A additional use) — $0.00075 per message (charged per message when seeded capacity exceeded under model=A).
- Teams meeting recording APIs — $0.003 per minute (duration rounded down to nearest minute).
- Teams meeting transcript APIs — $0.0022 per minute (duration rounded down to nearest minute).
- SharePoint & OneDrive assignSensitivityLabel API — $0.00185 (USD) per API call.
Discount/options & notes:
- Data Connect: Microsoft previously offered tiered discounts and a limited promo (first 100K objects free for a year); Microsoft announced updated pricing effective July 1, 2023 and removed promotional/tiered discounts in the corrected announcement. Billing is via an Azure subscription tied to the app registration; costs appear in Azure Cost Management + Billing.
- Teams APIs: some APIs support different payment models (model=A requires specific licenses and seeded capacity; model=B has no licensing requirement but requires Azure billing). Evaluation mode (default) provides limited free seeded capacity (e.g., certain change-notification resources: 500 messages/month/tenant/app) before charges apply.
Where billing is charged: Charges for metered Graph APIs and Data Connect are billed to an associated Azure subscription (owner of app registration or tenant).
Seller details
Microsoft Corporation
Redmond, Washington, United States
1975
Public
https://www.microsoft.com/
https://x.com/Microsoft
https://www.linkedin.com/company/microsoft/
