How to let AI agents book meetings on your behalf (MCP explained)

Short answer: IntoCal ships every user a hosted MCP (Model Context Protocol) server at a predictable URL. Any MCP-compatible agent — Claude Desktop, ChatGPT, Cursor, Windsurf, Warp — can query your slots and create bookings natively, no extra client code.

What is MCP?

The Model Context Protocol is a JSON-RPC 2.0 spec (2025-06-18) for exposing tools to LLM agents over HTTP. Think of it as "USB for AI agents". IntoCal implements it so agents can call list_event_types,query_slots, and request_booking the same way they call any other tool.

Your MCP endpoint

Every user's endpoint follows this pattern:

https://api.intocal.com/mcp/{username}

Discovery lives at /.well-known/mcp.json so agents can find IntoCal automatically.

Public mode vs owner mode

• Public mode (no key): guest bookings are held pending until the guest clicks a confirmation link. Safe to expose anywhere.
• Owner mode (API key): auto-confirmed bookings and full tool set including cancel, list-bookings, and team-member queries. Rotate keys anytime in Dashboard → MCP.

Example: Claude Desktop

1. Open Claude Desktop → Settings → Connectors → Add MCP.
2. URL: https://api.intocal.com/mcp/yourname
3. Paste your API key (optional, only for owner mode).
4. Save. Claude can now book meetings.

Example prompt

"Book me a 30-minute intro call with Jane next Tuesday afternoon. Use jane@intocal.com/intro-30."

The key takeaway: IntoCal is the only booking tool where AI agents are first-class users. No custom API integration, no MCP wrapper — it's built in.

Coming from Cal.com? Read Cal.com MCP vs IntoCal hosted MCP.