How do I connect Polar MCP Server to Claude?

Run `claude mcp add polar-mcp -- npx -y polar-mcp-unofficial` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.

Is Polar MCP Server free?

The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.

What can Polar MCP Server do?

Polar MCP Server documents 21 tools to the agent, including polar_capabilities, polar_connection_status, polar_daily_summary. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.

Polar MCP

Unclaimed

by davidmosiah

Unofficial local-first Polar AccessLink Dynamic API v4 MCP server for AI agents

Set up this server

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01 / Choose your client

02 / Before you connect

Authentication is not specified. Check the project instructions before connecting.

Install the runtime required by the project and make it available to your client.

Project instructionsEnvironment variable names (optional)

Use names from the project instructions, separated by commas. Enter names only, never secret values.

03 / Add the configuration

Source: generated from public install instructions

claude mcp add --transport stdio 'polar-mcp' -- 'npx' '-y' 'polar-mcp-unofficial'

Run in your terminal after replacing any placeholders.

04 / Check it in your client

Open your client’s MCP settings and confirm the server connects and lists its tools. A copied configuration does not confirm a working connection.

accesslinkai-agentshealth-datamcpmodel-context-protocolpolartypescriptclaudeclaude-mcpfitness

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Security profile

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21 of 21 tools

Documented tools (21)

From project documentation. A server handshake does not verify each tool’s description or behavior.

polar_capabilities

, polaragentmanifest, polarprivacyaudit, polarcachestatus

polar_connection_status

verify local setup, scopes and readiness before calling Polar

polar_daily_summary

sleep, activity, Nightly Recharge and training brief for today

polar_data_inventory

inventory supported data domains, scopes, privacy modes and recommended first calls without calling Polar APIs.

polar_demo

synthetic example payloads so agents see the contract before calling the real API

polar_get_account_data

, polarlistuserdevices, polarlistsubscriptions

polar_get_auth_url

, polarexchangecode, polarrevokeaccess

polar_get_route

GPS coordinates redacted unless raw mode

polar_heart_series

agent-safe-series/v1 bounded HR from continuous samples (prefer this for agents)

polar_list_activity

, polarlistcalendar

polar_list_continuous_samples

, polarlistppisamples

polar_list_nightly_recharge

polar_list_sleeps

, polarlistsleepwakevectors — sleep lists hydrate available dates with the v4 sleep-result, sleep-evaluation, and sleep-score features by default

polar_list_sports

, polarlistsportprofilecatalog, polarlistsportprofiles

polar_list_temperature_measurements

, polarlistskincontacts

polar_list_tests

polar_list_training_sessions

, polarlisttrainingtargets, polarlisttrainingtargetfavorites

polar_onboarding

, polarprofileget, polarprofileupdate — the Delx Wellness profile shared with the other connectors; stores only what the user typed, never tokens or biomarkers

polar_quickstart

personalized 3-step setup walkthrough that adapts to what's already configured

polar_weekly_summary

scorecard, comparison vs prior week, next-week plan

polar_wellness_context

Nightly Recharge, sleep and training load in the shared wellnesscontext shape

Tool change history

Compared across complete checks of the same configuration. Tools were listed, not invoked. Input-schema changes are not measured here.

No complete tool checks yet.

FAQ

Questions about Polar MCP Server

How do I connect Polar MCP Server to Claude?: Run `claude mcp add polar-mcp -- npx -y polar-mcp-unofficial` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.
Is Polar MCP Server free?: The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.
What can Polar MCP Server do?: Polar MCP Server documents 21 tools to the agent, including polar_capabilities, polar_connection_status, polar_daily_summary. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.