Microsoft Teams API
Microsoft Teams collaboration API via Microsoft Graph, enabling agents to send messages, manage teams and channels, schedule meetings, read chat history, and integrate with the Office 365 ecosystem.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Azure AD OAuth2 with Teams-specific scopes. App permissions vs delegated permissions. SOC2, ISO27001, FedRAMP. Compliance Center integration. Teams message data may contain sensitive business communications.
⚡ Reliability
Best When
An agent needs to integrate with enterprise Microsoft Teams environments for notifications, collaboration workflows, or reading channel data in M365 organizations.
Avoid When
Your org uses Slack, Google Workspace, or non-Microsoft collaboration tools.
Use Cases
- • Sending automated notifications and alerts to Teams channels from agent workflows
- • Creating and managing Teams channels and groups programmatically
- • Reading conversation history for summarization or compliance purposes
- • Scheduling Teams meetings and managing calendars via Graph API
- • Building Teams bots and adaptive card interactions
Not For
- • Organizations not on Microsoft 365 (Teams API requires M365 tenant)
- • Consumer Microsoft accounts (full API access requires organizational accounts)
- • Real-time message streaming without webhooks/change notifications
- • Replacing Microsoft Teams with a custom messaging UI
Interface
Authentication
Microsoft Entra ID (formerly Azure AD) OAuth2. Supports delegated (user) and application (daemon) permissions. Application permissions for agent use require admin consent. Scopes are granular: Chat.Read, ChannelMessage.Send, etc. Token refresh required every hour.
Pricing
API access is included with any Microsoft 365 subscription. No separate API billing — costs are the M365 seat licenses. Enterprise agreements typically cover all employees.
Agent Metadata
Known Gotchas
- ⚠ Admin consent required for application permissions — deployment requires IT involvement
- ⚠ Token expiry at 1 hour requires agent token refresh logic
- ⚠ Throttling policies vary by endpoint and tenant — agents must handle 429 with backoff
- ⚠ Teams channel messages require the bot to be a member of the team
- ⚠ Adaptive Cards require specific schema versions — older tenants may not support latest cards
- ⚠ Change notifications (webhooks) require a publicly accessible HTTPS endpoint for validation
- ⚠ Graph API versioning: v1.0 vs beta endpoints have different stability guarantees
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Microsoft Teams API.
Scores are editorial opinions as of 2026-03-06.