Is Calcom MCP safe and reliable?

Trust score 53/100 (grade D), based on live reachability, verified publisher, maintenance, adoption, transparency and tool quality. See our methodology.

Servers / Developer Tools

Calcom MCP

io.github.mrfentmen/calcom-mcp

Query Cal.com API v2: event types, bookings, schedules. v1 is decommissioned.

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Yes, if you run it on your computer.This is a local server: your AI app launches it on your machine (Claude Desktop, Cursor, VS Code, Claude Code). Browser-only apps like ChatGPT on the web can't run it.

Connect it

{
  "mcpServers": {
    "calcom-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "calcom-mcp@1.1.0"
      ]
    }
  }
}

claude mcp add calcom-mcp -- npx -y calcom-mcp@1.1.0

Change history

NewCalcom MCPQuery Cal.com API v2: event types, bookings, schedules. v1 is decommissioned.2026-10-17

Trust score

Grade D

Transparent, computed daily. How it works

Live reachability18/30

Verified publisher12/20

Maintenance15/15

Track record1/10

Adoption0/15

Transparency7/10

Health

Local servers run on your machine, so there is no public endpoint to monitor.

Status: Local install
Auth: No auth
Transport: stdio
Latency: —
Protocol: —
Version: 1.1.0
Publisher: GitHub · mrfentmen
Category: Developer Tools
Stars: —
npm / week: —
License: —
Updated: 2026-10-17
Last check: —

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