Does AddCal have an MCP server?
AddCal maintains an official MCP server.
- Access
- Remote server
- Endpoint
- https://addcal.co/mcp
- Repository
- addcal/mcp
- Maintainer
- AddCal
- License
- MIT
- Stars
- 1
- Last commit
- 2mo ago
- Category
- Workplace & Productivity
What it does
MCP server for AddCal: manage the calendars other people subscribe to. Remote streamable HTTP endpoint, OAuth, 19 tools.
Project site: addcal.co
The receipts
A remote server run by AddCal itself — nothing to install. Documented at addcal.co.
MCP server for AddCal: manage the calendars other people subscribe to. Remote streamable HTTP endpoint, OAuth, 19 tools.
Connect it
Hosted by the vendor — no install, connect over HTTP with OAuth or a token.
Add it from the terminal, then restart your session:
claude mcp add --transport http addcal https://addcal.co/mcpAdd --scope user to make it available in every project.
- Open Settings → Connectors
- Click Add custom connector
- Paste
https://addcal.co/mcp - Finish the sign-in prompt, then enable it in the chat's tools menu
Add to .cursor/mcp.json in your project, or ~/.cursor/mcp.json for
every project:
{
"mcpServers": {
"addcal": {
"url": "https://addcal.co/mcp"
}
}
}A green dot in Settings → MCP means it connected.
Add to .vscode/mcp.json:
{
"servers": {
"addcal": {
"type": "http",
"url": "https://addcal.co/mcp"
}
}
}Then pick the server from the tools menu in Copilot's agent mode.
- Enable Developer mode under Settings → Apps & Connectors → Advanced
- Choose Create and paste
https://addcal.co/mcp - Complete sign-in, then enable the connector in a new chat
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Does AddCal have an official MCP server?
Yes. AddCal maintains an official MCP server, hosted at https://addcal.co/mcp. The source lives at addcal/mcp on GitHub.
How do I connect AddCal to Claude?
Add https://addcal.co/mcp as a custom connector under Settings → Connectors in Claude Desktop or claude.ai, or run "claude mcp add --transport http addcal https://addcal.co/mcp" in Claude Code.
Do I need to install anything to use the AddCal MCP server?
No. It is a remote server hosted by AddCal, so your MCP client connects to it over HTTP. You authenticate with the vendor rather than installing a package.
How is this verdict verified?
Published to the MCP Registry under AddCal's verified namespace co.addcal; the hosted endpoint addcal.co/mcp is documented at addcal.co/documentation/mcp-server and in the addcal/mcp repo, and answers MCP initialize with 401 (OAuth required). GitHub metadata is refreshed every six hours.
How we know
Published to the MCP Registry under AddCal's verified namespace co.addcal; the hosted endpoint addcal.co/mcp is documented at addcal.co/documentation/mcp-server and in the addcal/mcp repo, and answers MCP initialize with 401 (OAuth required).
- GitHub data refreshed on 2026-10-15, and again every six hours.
- Vendor docs checked by hand on 2026-09-29.
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