Connect Claude to Atomic Metrix with MCP
Atomic Metrix MCP lets Claude ask for your authorized training data: rides, power analysis, readiness, plans, and scheduled workouts. You do not paste passwords into Claude. You connect once, approve OAuth, and Claude can call Atomic Metrix tools when you ask.
Use Claude Desktop if you prefer clicking through settings. Use the CLI if you are comfortable running one terminal command.
Option A: Claude Desktop connector
This is the easiest path for most users. Claude Desktop has a custom connector flow where you paste the Atomic Metrix MCP URL.
Open Customize
In Claude Desktop, open the left sidebar and choose Customize.
Open Connectors
Choose Connectors from the Customize screen.
Add a custom connector
Click the plus button and choose Add custom connector.
Connectors
+Paste the Atomic Metrix MCP URL
Use Atomic Metrix as the name, then paste the MCP URL and click Add.
Add custom connector
BETAAfter you click Add, Claude will prompt you to authenticate. Complete the browser login with your Atomic Metrix account and approve access.
Option B: one-command CLI setup
If you use Claude from the terminal or prefer editing local client configuration automatically, run this command:
The CLI writes the Atomic Metrix MCP server entry to ~/.claude.json. Restart Claude, then complete the browser OAuth login when Claude asks you to authorize Atomic Metrix.
How to verify it worked
Open a new Claude chat and ask one of these prompts. Claude should show Atomic Metrix tool calls before answering.
Troubleshooting
- Use the exact connector URL: https://www.atomicmetrix.com/mcp
- If you used CLI setup, restart Claude after the command finishes.
- Complete the browser OAuth login when prompted. Without OAuth, Claude can see the connector but cannot read your data.
- If tools do not appear, remove duplicate Atomic Metrix connectors and add it again.
- If Claude connects but has no ride data, connect Strava or Intervals.icu inside Atomic Metrix first.