Privacy-first unofficial Polar AccessLink v4 MCP server for AI health, sleep and training agents.
To add polarmcp to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 8 environment variables, listed below.
Install
npx -y polar-mcp-unofficial@0.3.6Environment variables
POLAR_CLIENT_IDSet in your MCP configPOLAR_CLIENT_SECRETSet in your MCP configPOLAR_REDIRECT_URISet in your MCP configPOLAR_TOKEN_PATHSet in your MCP configPOLAR_PRIVACY_MODESet in your MCP configPOLAR_CACHESet in your MCP configPOLAR_CACHE_PATHSet in your MCP configPOLAR_NO_CACHESet in your MCP configInstall with your client
claude mcp add polarmcp --env POLAR_CLIENT_ID=<YOUR_POLAR_CLIENT_ID> --env POLAR_CLIENT_SECRET=<YOUR_POLAR_CLIENT_SECRET> --env POLAR_REDIRECT_URI=<YOUR_POLAR_REDIRECT_URI> --env POLAR_TOKEN_PATH=<YOUR_POLAR_TOKEN_PATH> --env POLAR_PRIVACY_MODE=<YOUR_POLAR_PRIVACY_MODE> --env POLAR_CACHE=<YOUR_POLAR_CACHE> --env POLAR_CACHE_PATH=<YOUR_POLAR_CACHE_PATH> --env POLAR_NO_CACHE=<YOUR_POLAR_NO_CACHE> -- npx -y polar-mcp-unofficial@0.3.6
Run this in a terminal to add the server to Claude Code.
What this does
polarmcp exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
POLAR_CLIENT_ID POLAR_CLIENT_SECRET POLAR_REDIRECT_URI POLAR_TOKEN_PATH POLAR_PRIVACY_MODE POLAR_CACHE POLAR_CACHE_PATH POLAR_NO_CACHE
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install polarmcp?
Run the Claude Code command in the install section to add polarmcp to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with polarmcp?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to polarmcp as well.
Does polarmcp need an API key?
Yes. Before it can run, set these environment variables: POLAR_CLIENT_ID, POLAR_CLIENT_SECRET, POLAR_REDIRECT_URI, POLAR_TOKEN_PATH, POLAR_PRIVACY_MODE, POLAR_CACHE, POLAR_CACHE_PATH, POLAR_NO_CACHE. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
Is this your MCP server?
Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.
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