Join Slack CommunityMicrosoft Outlook Calendar API Integration for Modern Apps
Connect your application to Microsoft 365 and Outlook Calendar with Unipile's enterprise-grade API. Build calendar automation, sync Microsoft Teams meetings, and manage scheduling without implementing Microsoft OAuth.
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POST /outlook
Automate Microsoft 365 Calendar Scheduling Across Your Teams
Power your application with Outlook Calendar integration. Sync meetings with Microsoft 365, manage team availability, auto-generate Teams meeting links, and streamline scheduling all through one unified API.
Build with Microsoft 365 calendar
Create events with automatic Teams meeting links, sync across Outlook accounts, manage attendees in one API call without OAuth complexity.
Live calendar events sync
Get real-time push notifications for all calendar changes across Outlook and Microsoft 365. Never miss an update with instant webhooks.
Team availability visibility
Query free/busy status across team members' calendars. Prevent double-booking and find optimal meeting times automatically.
Enterprise OAuth handled
Unipile manages Azure authentication, token refresh, and Microsoft Graph scopes. Focus on building, not on OAuth complexity.
Outlook
Enterprise Capabilities of the
Outlook Calendar API
Everything you need to automate Outlook scheduling, manage Microsoft 365 calendars, sync with Teams meetings, and implement real-time webhook updates through a unified API endpoint.
Microsoft 365 Event Automation
Use our endpoints to create, manage, and sync events across Outlook and Microsoft 365. Generate Teams meeting links, manage attendees, and handle recurring events across your enterprise with one API.
teams.microsoft.com/meeting/xyz
Auto
Live Calendar Synchronization
Keep your app synchronized with Outlook calendars using real-time webhooks. Get instant push notifications for every calendar change across your Microsoft 365 accounts, no polling required.
Real-Time Event Stream
{
"event": "calendar.event.created",
"event_id": "evt_M365xyz...",
"account_id": "acc_outlook123...",
"teams_link": "teams.microsoft.com/l/meetup-join/..."
}
Automate Enterprise Workflows Across Outlook, Outlook Mail, Teams & LinkedIn
Build intelligent booking sequences with Outlook Calendar, send meeting confirmations via Outlook, generate Teams meeting links, and engage prospects on LinkedIn - all from one unified API.
Outlook
Outlook Mail
Teams
LinkedIn
Outlook Calendar API Capabilities
Integrate Google Calendar and Outlook Calendar through a single unified API. Create, update, delete, and manage events across all major providers with consistent endpoints.
Account Connection
2 endpoints available
Google OutlookCalendar Management
2 endpoints available
Google OutlookEvent Management
8 endpoints available
Google OutlookWebhooks
3 events available
Google OutlookOutlook Calendar API Use Cases
Integrate Outlook Calendar into your platform. From enterprise recruiting to sales pipelines to multi-channel outreach, automate Microsoft 365 scheduling and streamline your workflow.
ATS Publisher
Auto-sync interview schedules with candidate Outlook calendars. Reduce no-shows and double-booking with real-time Microsoft 365 integration.
ATS Use Case
CRM Publisher
Sync all customer meetings directly into your CRM via Outlook. Track deal progress with full calendar context and meeting history across Microsoft 365.
CRM Use Case
Outreach
Schedule follow-up meetings through outreach sequences via Outlook. Auto-book meetings with availability checks across Microsoft 365 multi-channel campaigns.
Outreach Use CaseBuild Features into Your Product Today
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What's included
Outlook Calendar API Integration for Modern Apps
Connect Outlook and Microsoft 365 calendars in minutes. Simplified Azure authentication, no OAuth complexity. Create, update, and manage events across multiple calendars with a single unified API.
Simple Integration
Create events, manage Microsoft 365 calendars, and sync availability with a few lines of code. Our SDK handles Azure authentication, token refresh, and session management automatically.
// Connect to Outlook Calendar in seconds import { UnipileClient } from 'unipile-node-sdk'; const client = new UnipileClient({ dsn: 'https://api.unipile.com', token: process.env.UNIPILE_TOKEN }); // List user calendars const calendars = await client.calendar.listCalendars({ account_id: accountId }); // Create event with Teams link await client.calendar.createEvent({ account_id: accountId, calendar_id: calendars[0].id, title: 'Enterprise Meeting', description: 'Discuss M365 strategy', start_time: '2025-01-20T14:00:00Z', end_time: '2025-01-20T15:00:00Z', attendees: [{ email: 'sarah@enterprise.com' }] }); // Get availability across M365 accounts const events = await client.calendar.listEvents({ account_id: accountId, calendar_id: calendars[0].id, time_min: '2025-01-20T00:00:00Z', time_max: '2025-01-20T23:59:59Z' });
RESTful API
Clean, standardized endpoints with JSON responses. Create events, list calendars, and manage attendees through predictable REST calls.
Real-time Webhooks
Get instant notifications for event creation, updates, and deletions across Outlook and Microsoft 365. Zero-latency event syncing.
Simplified Azure OAuth
Skip complex Azure AD setup and Microsoft Graph scope management. Unipile handles authentication, token refresh, and compliance. Users connect in one click.
Multi-Calendar Support
Work with multiple calendars across Microsoft 365 accounts. List, get, and manage events in primary and secondary calendars seamlessly.
Availability Checking
Check attendee availability across time zones and M365 accounts. Find optimal meeting slots based on calendar occupancy and preferences.
Attendees & Invitations
Add attendees to events with automatic invitation sending. Track RSVP status and receive real-time notifications across Microsoft 365.
Time Zone Support
Automatic time zone conversion for events and attendees across global teams. Never worry about scheduling across different zones again.
Azure OAuth, Simplified
Azure AD authentication is complex, consent screens, security reviews, Microsoft Graph scope management, annual certifications. Unipile handles all of it, including security compliance, so you can focus on building.
One dashboard for all your integrations
Manage all your LinkedIn, WhatsApp, Gmail accounts and more from a single, intuitive interface.
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