Polar Health Data (self-hosted)

local MCP server

Installation

Terminal

claude mcp add polar-flow-server -e DATABASE_URL=... -e POLAR_CLIENT_ID=... -e POLAR_CLIENT_SECRET=... -e BASE_URL=... -- docker run -i --rm docker.io/stumason/polar-flow-server:1.5.1

Run in your project folder. Add --scope user to use it everywhere.

Claude Desktop, Cursor & other clients

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "polar-flow-server": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/stumason/polar-flow-server:1.5.1"
      ],
      "env": {
        "DATABASE_URL": "...",
        "POLAR_CLIENT_ID": "...",
        "POLAR_CLIENT_SECRET": "...",
        "BASE_URL": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

Summary

Self-hosted Polar health analytics with a built-in MCP server: sleep, HRV, workouts, baselines.

Questions

Polar Health Data (self-hosted) is a local MCP server distributed as the oci package docker.io/stumason/polar-flow-server:1.5.1.

Run: claude mcp add polar-flow-server -e DATABASE_URL=... -e POLAR_CLIENT_ID=... -e POLAR_CLIENT_SECRET=... -e BASE_URL=... -- docker run -i --rm docker.io/stumason/polar-flow-server:1.5.1

Run: codex mcp add polar-flow-server --env DATABASE_URL=... --env POLAR_CLIENT_ID=... --env POLAR_CLIENT_SECRET=... --env BASE_URL=... -- docker run -i --rm docker.io/stumason/polar-flow-server:1.5.1

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