# Polar **Canonical:** https://apis.io/providers/polar/ **Website:** https://www.polar.com/en **APIs profiled:** 19 Polar Electro Oy (operating as Polar Global) is a Finnish sports and fitness technology company founded in 1977 and headquartered in Kempele, Finland. Polar invented the first wireless wearable heart rate monitor — the Sport Tester PE 2000 in 1982 — and remains one of the longest-standing brands in consumer heart rate sensing, GPS sports watches, and fitness wearables. The Polar device portfolio includes the H10 and H9 chest straps, the Verity Sense and OH1 optical sensors, the Polar 360 and Loop fitness bands, and the Vantage, Grit X, Pacer, Ignite, and Unite watch lines, along with a dedicated equine sensor line. Developers access Polar data through the Polar AccessLink API for consumer Polar Flow data, the Polar TeamPro API for team and player training sessions, and the open-source Polar BLE SDK for iOS and Android applications that stream live sensor data over Bluetooth Low Energy. ## Kin Score — 43.1 / 100 (developing) Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 43.1). | Facet | Score | |---|---| | Discoverability | 64.8 | | Contract Quality | 59.0 | | Governance | 0.0 | | Contract Governance | 0.0 | | Operational Transparency | 5.3 | | Developer Ergonomics | 45.2 | | Commercial Clarity | 34.2 | | Access Clarity | 34.2 | Regulatory layer — **Health**: 53.8 (matched via tags). ## Agent readiness — 35.9 (agent-ready) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | Reversibility Documented | no | | MCP Server | no | | Auth Clarity | yes | | Idempotency | no | | Error Semantics | verified | | OpenAPI Examples | partial | | Rate Limit Signal | no | | Event Surface Described | no | | Agent Skills | no | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | ## Access Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium). ## APIs (19) - **Polar BLE SDK** — The Polar BLE SDK enables iOS and Android applications to stream live data from Polar sensors over Bluetooth Low Energy. Supports H10, H9, Verity Sense, OH1, Ignite 3, Polar 360... - **Polar Cardio load API** — Cardio load is based on training impulse calculation (TRIMP), a commonly accepted and scientifically proven method to quantify training load. Your Cardio load value tells you ho... - **Polar Continuous Heart Rate API** — This resource allows partners to access their users' continuous heart rate data. Continuous heart rate is recorded with supported devices when the heart rate tracking is turned ... - **Polar Daily activity API** — This resource allows partners to access their users' daily activity data. Webhooks are used to notify partners when new data is available. - **Polar Daily activity (deprecated) API** — This resource allows partners to access their users' daily activity data. During the transfer, the activity data is copied also into the AccessLink database so the end-users can... - **Polar Elixir™ Biosensing API** — This resource allows partners to access their users' Elixir™ Biosensing data. All time values are UTC times. Elixir™ Biosensing data consists of body temperature dat... - **Polar Exercises API** — Resources for getting information about exercise. These endpoints do not require an active transaction, but they use hashed id. - **Polar Exercises (deprecated) API** — This resource allows partners to access their users' training data. All time values are UTC except start-time. Start-time is the time set on the training computer. Each transact... - **Polar Nightly Recharge API** — Nightly Recharge™ is a recovery measurement that shows how well your body recovers from daily training and stress. It is based on heart rate variability (HRV) and overnigh... - **Polar Physical info API** — This resource allows partners to access their users' physical information. - **Polar Physical info (deprecated) API** — This resource allows partners to access their users' physical information. Whenever some user's physical information changes, new entry containing full physical info is stored t... - **Polar Player training sessions API** — Endpoints for getting players training session and details.