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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "polarmcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "POLAR_CLIENT_SECRET": "${POLAR_CLIENT_SECRET}"
      }
    }
  }
}

claude mcp add polarmcp -e "POLAR_CLIENT_SECRET=${POLAR_CLIENT_SECRET}" -- npx -y [email protected]

[mcp_servers.polarmcp]
command = "npx"
args = ["-y", "[email protected]"]
env = { "POLAR_CLIENT_SECRET" = "${POLAR_CLIENT_SECRET}" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "polarmcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "[email protected]"
      ],
      "enabled": true,
      "environment": {
        "POLAR_CLIENT_SECRET": "{env:POLAR_CLIENT_SECRET}"
      }
    }
  }
}

{
  "mcpServers": {
    "polarmcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "POLAR_CLIENT_SECRET": "${POLAR_CLIENT_SECRET}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=polarmcp&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsInBvbGFyLW1jcC11bm9mZmljaWFsQDAuMy42Il0sImVudiI6eyJQT0xBUl9DTElFTlRfU0VDUkVUIjoiJHtQT0xBUl9DTElFTlRfU0VDUkVUfSJ9fQ%3D%3D"
}

{
  "servers": {
    "polarmcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "POLAR_CLIENT_SECRET": "${POLAR_CLIENT_SECRET}"
      }
    }
  }
}

{
  "mcpServers": {
    "polarmcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "POLAR_CLIENT_SECRET": "${POLAR_CLIENT_SECRET}"
      }
    }
  }
}

extensions:
  "polarmcp":
    enabled: true
    name: "polarmcp"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "[email protected]"
    envs:
      "POLAR_CLIENT_SECRET": "${POLAR_CLIENT_SECRET}"
    timeout: 300

Placeholders to fill from your own secret store: ${POLAR_CLIENT_SECRET}. The registry never accepts secret values.

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependencies67 · weight 15

pass
deps.known_vulnsno known advisory in 133 resolved packages
fail
deps.mcp_sdk_version@modelcontextprotocol/sdk 1.30.1 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
pass
deps.resolvable[email protected] resolved: 133 packages

Tool list unknown · checked 2026-10-19 10:20 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 86 / 100

provenance90

livenessn/a

freshness65

hygiene100

+repository +namespace-matches-repo +website ~liveness-unmeasured ~updated-98d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

[email protected] npm132 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.30.1 · advisories checked 2026-10-19

advisory	severity	package	fixed in
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server	high	`@modelcontextprotocol/[email protected]`MCP SDK, direct	fixed in `1.31.0`

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime	secrets
`polar-mcp-unofficial`	npm	0.3.6	–	`POLAR_CLIENT_SECRET`

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

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Official server.json

{
  "name": "io.github.davidmosiah/polarmcp",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.3.6",
  "packages": [
    {
      "version": "0.3.6",
      "transport": {
        "type": "stdio"
      },
      "identifier": "polar-mcp-unofficial",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "POLAR_CLIENT_ID",
          "format": "string",
          "description": "Polar OAuth client ID. Optional when configured with polar-mcp-server setup."
        },
        {
          "name": "POLAR_CLIENT_SECRET",
          "format": "string",
          "isSecret": true,
          "description": "Polar OAuth client secret. Prefer polar-mcp-server setup so this secret is stored in ~/.polar-mcp/config.json instead of MCP client config."
        },
        {
          "name": "POLAR_REDIRECT_URI",
          "format": "string",
          "description": "Redirect URI configured in the Polar AccessLink admin. Optional when configured with polar-mcp-server setup."
        },
        {
          "name": "POLAR_TOKEN_PATH",
          "format": "string",
          "description": "Optional local path for OAuth tokens. Defaults to ~/.polar-mcp/tokens.json."
        },
        {
          "name": "POLAR_PRIVACY_MODE",
          "format": "string",
          "description": "Optional payload mode: summary, structured, or raw. Defaults to structured. raw means full Polar AccessLink payloads for supported endpoints."
        },
        {
          "name": "POLAR_CACHE",
          "format": "string",
          "description": "Optional SQLite cache toggle. Set to true or sqlite to enable."
        },
        {
          "name": "POLAR_CACHE_PATH",
          "format": "string",
          "description": "Optional local SQLite cache path. Defaults to ~/.polar-mcp/cache.sqlite."
        },
        {
          "name": "POLAR_NO_CACHE",
          "format": "string",
          "description": "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."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/davidmosiah/polar-mcp",
    "source": "github"
  },
  "websiteUrl": "https://wellness.delx.ai/connectors/polar",
  "description": "Privacy-first unofficial Polar AccessLink v4 MCP server for AI health, sleep and training agents."
}