Garmin — MissingMCP for ChatGPT

com.missingmcp/garmin

Garmin data in Claude: 135 tools — activities, sleep, HRV, training, workouts. Free, open source.

client:ChatGPT transport:streamable-http

Install Garmin — MissingMCP in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://missingmcp.com/garmin/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs