io.github.davidmosiah/polarmcp

io.github.davidmosiah/polarmcpv0.3.6Other

Privacy-first unofficial Polar AccessLink v4 MCP server for AI health, sleep and training agents.

In-path gate · all MCP tools

Using io.github.davidmosiah/polarmcp in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

REVIEWstatus: STALEfresh until 2026-08-01 18:02 UTC

screened 2026-07-02tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“No malicious instructions found”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema
- screen model 8b
- Past its expiry date - awaiting re-screen

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-04).

Contracts can change after screening, with no version bump. The gate pins io.github.davidmosiah/polarmcp’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

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A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-davidmosiah-polarmcp)](https://mcpindex.ai/server/io-github-davidmosiah-polarmcp)

HTML

<a href="https://mcpindex.ai/server/io-github-davidmosiah-polarmcp"><img src="https://mcpindex.ai/api/v1/badge/io-github-davidmosiah-polarmcp" alt="mcpindex verdict" height="20" /></a>

Environment variables

POLAR_CLIENT_ID

Polar OAuth client ID. Optional when configured with polar-mcp-server setup.

POLAR_CLIENT_SECRET

secret

Polar OAuth client secret. Prefer polar-mcp-server setup so this secret is stored in ~/.polar-mcp/config.json instead of MCP client config.

POLAR_REDIRECT_URI

Redirect URI configured in the Polar AccessLink admin. Optional when configured with polar-mcp-server setup.

POLAR_TOKEN_PATH

Optional local path for OAuth tokens. Defaults to ~/.polar-mcp/tokens.json.

POLAR_PRIVACY_MODE

Optional payload mode: summary, structured, or raw. Defaults to structured. raw means full Polar AccessLink payloads for supported endpoints.

POLAR_CACHE

Optional SQLite cache toggle. Set to true or sqlite to enable.

POLAR_CACHE_PATH

Optional local SQLite cache path. Defaults to ~/.polar-mcp/cache.sqlite.

POLAR_NO_CACHE

Set to true to bypass the in-memory HTTP response cache (60s TTL for GET only). POST/PUT/DELETE and 4xx/5xx responses are never cached regardless.

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

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Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "polarmcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "polar-mcp-unofficial"
      ],
      "env": {
        "POLAR_CLIENT_ID": "<polar_client_id>",
        "POLAR_CLIENT_SECRET": "<your-polar_client_secret>",
        "POLAR_REDIRECT_URI": "<polar_redirect_uri>",
        "POLAR_TOKEN_PATH": "<polar_token_path>",
        "POLAR_PRIVACY_MODE": "<polar_privacy_mode>",
        "POLAR_CACHE": "<polar_cache>",
        "POLAR_CACHE_PATH": "<polar_cache_path>",
        "POLAR_NO_CACHE": "<polar_no_cache>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "polarmcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "polar-mcp-unofficial"
      ],
      "env": {
        "POLAR_CLIENT_ID": "<polar_client_id>",
        "POLAR_CLIENT_SECRET": "<your-polar_client_secret>",
        "POLAR_REDIRECT_URI": "<polar_redirect_uri>",
        "POLAR_TOKEN_PATH": "<polar_token_path>",
        "POLAR_PRIVACY_MODE": "<polar_privacy_mode>",
        "POLAR_CACHE": "<polar_cache>",
        "POLAR_CACHE_PATH": "<polar_cache_path>",
        "POLAR_NO_CACHE": "<polar_no_cache>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- polar-mcp-unofficial

Claude Code (claude mcp add)

claude mcp add --scope user polarmcp -- npx -y -- polar-mcp-unofficial

Gemini CLI (gemini mcp add)

gemini mcp add -s user polarmcp npx -y -- polar-mcp-unofficial

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-davidmosiah-polarmcp

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.3.6
category: Other
verdict expires: 2026-08-01
quality: 85 / 100
operator: davidmosiah

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 960,824). Verify it yourself.

Links

Repository →Website →