Polar Health Data (self-hosted) MCP Server

Self-hosted health analytics for Polar devices - own your data, analyze it against your own baselines, and let your AI assistant read it.

People who work with analytics, fitness and health and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-09-14 · ★ 22 · #121 OF 168 MAINTAINED DATABASE · VERIFIED 2026-09-18

Python servers · how we verify → /methodology

01 · Install Polar Health Data (self-hosted)

Docker

docker run -i --rm docker.io/stumason/polar-flow-server:1.5.1

Claude Desktop - add to config

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

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as container (OCI image) - can be sandboxed away from your filesystem

license no standard license detected - usage rights unclear; check the repo before commercial use

registry namespace io.github.StuMason is GitHub-verified and matches the repo owner

03 · What Polar Health Data (self-hosted) can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.5.1 · 2026-09-10

Fixed · Admin dashboard returned 500 after login for anyone with Nightly Recharge data (#132, #134) · PR #123 switched the recovery status column to Polar's 1 to 6 integer scale, but the dashboard template still ran…

v1.4.0 · 2026-07-19

What's new · Tabbed Admin Dashboard (#43, #44) - thanks @gbremond! · Dashboard reorganised into tabs: Overview, Trends & Baselines, Sleep, Heart Rate, Training Load · URL hash deep links (#tab-sleep) and lazy per-tab…

v1.3.4 · 2026-03-02

Bug Fix · All self-hosted users getting 403 Forbidden errors on every sync (#19). · Root Cause · The Polar AccessLink API requires a user registration step (POST /v3/users) after OAuth authorization before any data…

04 · Who maintains Polar Health Data (self-hosted)

Polar Health Data (self-hosted) is maintained by stumason. We track 2 MCP servers from stumason - 2 actively maintained, 617 combined GitHub stars, oldest repo from Mar 2025. Full record: all servers from stumason.

coolify 45 optimized tools for managing Coolify infrastructure, diagnostics, and docs search ★ 595

05 · Facts

repository: github.com/stumason/polar-flow-server
website: https://stumason.github.io/polar-flow-server/
category: database - ranked #121 of 168 actively-maintained database servers as of 2026-09-18.
release cadence: 2 releases in the last 90 days (latest 2026-09-10)
registry: io.github.StuMason/polar-flow-server (active, first published 2026-08-06 · 2 versions)
packages: oci:docker.io/stumason/polar-flow-server:1.5.1

06 · Polar Health Data (self-hosted) FAQ

What is Polar Health Data (self-hosted)?

Self-hosted health analytics for Polar devices - own your data, analyze it against your own baselines, and let your AI assistant read it.

Is Polar Health Data (self-hosted) still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-14 and it shipped 2 releases in the last 90 days. We re-verify nightly.

How do I install Polar Health Data (self-hosted)?

Run `docker run -i --rm docker.io/stumason/polar-flow-server:1.5.1`. You can also paste the ready-made client config above.

07 · Alternatives to Polar Health Data (self-hosted)

Alternatives to Polar Health Data (self-hosted)

Maintained database servers if Polar Health Data (self-hosted) isn't the fit.

Pairs well with

Servers that cover what Polar Health Data (self-hosted) doesn't - only shown when the pairing reason fits the companion.

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