# Cal.com MCP: Use Cal.com in Slack and Email Source: https://maito.app/integrations/cal-com Connect the Cal.com MCP server to Maito with one sign-in, and your whole team can use it from Slack or email: “Who booked demos with us this week?” Cal.com is scheduling: availability, event types and bookings. Connect the Cal.com MCP server to Maito once, and everyone on your team can use Cal.com from Slack, by email, or from Claude, ChatGPT, Cursor, Codex, Grok or Muse. Nobody else has to sign in. - Connects in one click - Sign in with Cal.com - One connection for the whole team - Server by [Cal.com](https://cal.com/) Updated October 21, 2026 ## What you can ask with Cal.com Requests to Maito ![Dana](https://maito.app/marketing-avatars/dana.webp) Dana in Slack Who booked demos with us this week? ![Sam](https://maito.app/marketing-avatars/sam.webp) Sam by email Block my availability next Friday afternoon. Maito uses Cal.com to do the work and replies where you asked. ## How to connect Cal.com Open Connections in your workspace and choose Connect next to Cal.com. You sign in to Cal.com in a new tab, and that's the whole setup. Name the account and choose Workspace under who can use it. That's the only time anyone signs in: your whole team, shared chats and Loops can use Cal.com from then on. Or skip ahead and ask for the work: Maito sends you a link if Cal.com isn't connected yet. ## Questions ### What is the Cal.com MCP server URL? Cal.com publishes it at https://mcp.cal.com/mcp, and it signs in with OAuth, so there's no key to copy. ### Can I use the Cal.com MCP server from Slack? Yes. Connect it to Maito once, then mention Maito in any Slack channel or send it a direct message. The same connection works by email and from Claude, ChatGPT, Cursor, Codex, Grok or Muse. ### Does everyone on my team have to connect Cal.com? No. One person connects it once and chooses Workspace. Then everyone in the workspace, shared chats and Loops can use Cal.com, without signing in themselves. Choose Only me instead to keep it to your own chats. ### Do I have to connect Cal.com before I ask? No. If a request needs Cal.com and it isn't connected yet, your agent sends you a link. Connect it, and the work picks up where it stopped. ### Can I limit what Maito does in Cal.com? Yes. After you connect, turn off any Cal.com tools you don't want Maito to use, such as the ones that change data. Tools Cal.com adds later stay off until you turn them on. ## Workflows that use Cal.com - [Research an account before a call Get a one-page brief on the company and the people you're meeting, without opening ten tabs. Sales · When you ask Works with Google Calendar, Microsoft 365, HubSpot, Salesforce.](https://maito.app/workflows/research-an-account-before-a-call) - [Brief every meeting automatically Every morning, get a short brief for each external meeting on your calendar. Sales · On a schedule Works with Google Calendar, Microsoft 365, HubSpot, Salesforce.](https://maito.app/workflows/brief-every-meeting-automatically) - [Plan the content calendar Turn launches, events and themes into a month of planned posts. Marketing · When you ask Works with Box, Google Calendar, Microsoft 365.](https://maito.app/workflows/plan-the-content-calendar) - [Prepare interview kits Interviewers get the CV summary, questions and scorecard before the interview. People and HR · When something happens Works with Google Calendar, Microsoft 365.](https://maito.app/workflows/prepare-interview-kits) - [Plan team events and offsites Get options for venues, dates and agendas without the back-and-forth. People and HR · When you ask Works with Google Calendar, Microsoft 365.](https://maito.app/workflows/plan-team-events-and-offsites) - [Plan my week Turn your calendar, inbox and tasks into a plan for the week. Founders and leadership · On a schedule Works with Google Calendar, Microsoft 365, Gmail, Linear, Asana.](https://maito.app/workflows/plan-my-week) [See all workflows](https://maito.app/workflows) ## Also in Scheduling and email - [Superhuman Mail Superhuman Mail is a fast email app for Gmail and Outlook.](https://maito.app/integrations/superhuman-mail) - [Calendly Calendly is scheduling: event types, availability and bookings.](https://maito.app/integrations/calendly) - [Luma Luma runs events: event pages, guests and registrations.](https://maito.app/integrations/luma) - [Missive Missive is a shared inbox where teams read and handle email together.](https://maito.app/integrations/missive) - [Inkbox Inkbox gives agents their own email, SMS and iMessage accounts.](https://maito.app/integrations/inkbox) - [AgentMail AgentMail gives agents their own email inboxes to send, receive and reply from.](https://maito.app/integrations/agentmail) [See all integrations](https://maito.app/integrations) ## Put your AI employee to work. Set it up in minutes. Connect Cal.com, then hand Maito the first job. [Put Maito to work](https://maito.app/login?returnTo=%2Fintegrations%2Fcal-com)[Book a demo](https://cal.com/ddubovetzky/chat-with-the-founder)