plugmyagent

Polar AccessLink

Fitness Free key (no card)

AuthenticationFree key (no card)
Rate limit3,000 requests/15 minutes and 100,000 requests/day

Documentation: www.polar.com ยท Checked Sep 13, 2026

About

Polar's AccessLink API gives you access to the data collected by Polar watches and heart-rate monitors. Any Polar Flow user can create a client for free. No business application needed. It covers training sessions, daily activity, sleep, continuous samples, and device info.

Details

Free to start. You may need a free key, but no credit card.

Auth: Free key (no card)

Rate limit: 3,000 requests/15 minutes and 100,000 requests/day

Verified: 2026-09-13

Best for: heart-rate training sleep

Read the docs Back to catalog

Setup

  1. Create a free Polar Flow account and pair your Polar device.
  2. Open the Polar API v4 documentation page and register a new client.
  3. Note your client ID and client secret from the client dashboard.
  4. Register the users who will connect their Polar data to your app.
  5. Use OAuth2 to get an access token, then pull data from the v4 endpoints.
Sign up