Can Claude connect to Outlook Calendar?
Updated October 18, 2026 · from live checks of 45,143 MCP servers · Methodology
Yes.Claude has a built-in Outlook Calendar connector made by Anthropic (Settings → Connectors). Outlook Calendar itself hasn't published an MCP server we can verify, so third-party Outlook Calendar servers aren't official. Checked 2026-10-18.
Remote Outlook Calendar servers (Claude-ready)
| Server | Publisher | Status | Sign-in | Tools | Trust |
|---|---|---|---|---|---|
| Outlook Calendar | Verified domain | Live · sign-in | OAuth sign-in | — | B |
| Outlook Calendar | Community | Live | No auth | — | B |
Local Outlook Calendar servers (Claude Desktop / Claude Code)
| Server | Publisher | Status | Sign-in | Tools | Trust |
|---|---|---|---|---|---|
| Microsoft 365 Calendar | Community | Local install | No auth | — | C |
| Ms Calendar MCP | Community | Local install | No auth | — | C |
How to connect Outlook Calendar to Claude
- In Claude, open Settings → Connectors → Add custom connector.
- Paste the remote server URL from the server page and sign in.
- For a local server, add it to Claude Desktop's config or run
claude mcp addin Claude Code.
Custom connectors work on Free (one connector), Pro, Max, Team and Enterprise. Remote connectors connect from Anthropic's cloud, so the server must be publicly reachable.
Is it safe to connect Outlook Calendar to Claude?
Check the publisher and trust grade first. Official servers are published by Outlook Calendar itself; community servers come from third parties and can see whatever your account can. Every server page shows its live status, sign-in type and tool list.
Can ChatGPT connect to Outlook Calendar?
See https://canmyaiuse.pages.dev/can/chatgpt/outlook-calendar/
Does Outlook Calendar have an official MCP server?
Not in the official MCP Registry as of 2026-10-18. Full list: https://canmyaiuse.pages.dev/apps/outlook-calendar/