Sync Cal.com with Your CRM

Prerequisites

• Cal.com account with API access
• n8n instance running (see n8n-mcp-setup)
• Attio MCP server connected (see attio-mcp-setup)

Steps

1. Set up a Cal.com webhook via API. Use the Cal.com API to create a webhook for booking events:

   POST /api/v1/webhooks
   {
     "subscriberUrl": "https://your-n8n-instance.com/webhook/calcom-booking",
     "eventTriggers": ["BOOKING_CREATED"],
     "active": true
   }
   

   This fires when someone books a meeting.

2. Create an n8n workflow for the webhook. Build an n8n workflow with a Webhook Trigger node listening at the URL configured above. This workflow will process every new booking.

3. Parse the webhook payload. Use a Set node in n8n to extract: booker's name, email, company (from booking form custom fields), event type, and scheduled time from the Cal.com webhook JSON.

4. Check if contact exists in Attio. Use the Attio MCP or API to search by email. If the contact exists, update their record with a note about the upcoming meeting and move their deal to "Meeting Scheduled" stage.

5. Create records for new contacts. If the contact is new: create a Person record in Attio with their info, create a linked Company record if needed, and create a Deal at the "Meeting Booked" stage. Use the Attio MCP create_record operations.

6. Send tracking events. Fire a PostHog event via the API:

   posthog.capture('meeting_booked', { source: eventType, lead_email: bookerEmail })
   

   Optionally send a Slack notification to the sales team with booking details so they can prepare.