# Polar Cardio load API

**Canonical:** https://apis.io/apis/polar/polar-cardio-load-api/  
**Provider:** Polar — https://apis.io/providers/polar/  
**Base URL:** https://www.polaraccesslink.com/  
**Documentation:** https://www.polar.com/accesslink-api/

Polar Cardio load API is one of 19 APIs that [Polar](https://apis.io/providers/polar/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification. Tagged areas include Cardio load. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an AsyncAPI specification, and code examples.

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 how much strain your training session put on your cardiovascular system. The higher the Cardio load, the more strenuous the training session was for the cardiovascular system. Cardio load is calculated after every workout from your heart rate data and session duration. For more detailed information please check [cardio load](https://support.polar.com/e_manuals/unite/polar-unite-user-manual-english/cardio-load.htm).

## Machine-readable artifacts (8)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/polar/refs/heads/main/openapi/polar-cardio-load-api-openapi.yml
- **Documentation** — https://www.polar.com/accesslink-api/
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/polar/refs/heads/main/openapi/polar-accesslink-webhooks-asyncapi.yml
- **Portal** — https://admin.polaraccesslink.com/
- **CodeExamples** — https://github.com/polarofficial/accesslink-example-python
- **TermsOfService** — https://www.polar.com/en/legal/polar-api-agreement
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/polar/refs/heads/main/graphql/polar-graphql.md
- **Documentation** — https://www.polar.com/teampro-api/

## Other Polar APIs (12)

- [Polar BLE SDK](https://apis.io/apis/polar/polar-ble-sdk/)
- [Polar Continuous Heart Rate API](https://apis.io/apis/polar/polar-continuous-heart-rate-api/)
- [Polar Daily activity API](https://apis.io/apis/polar/polar-daily-activity-api/)
- [Polar Daily activity (deprecated) API](https://apis.io/apis/polar/polar-daily-activity-deprecated-api/)
- [Polar Elixir™ Biosensing API](https://apis.io/apis/polar/polar-elixir-trade-biosensing-api/)
- [Polar Exercises API](https://apis.io/apis/polar/polar-exercises-api/)
- [Polar Exercises (deprecated) API](https://apis.io/apis/polar/polar-exercises-deprecated-api/)
- [Polar Nightly Recharge API](https://apis.io/apis/polar/polar-nightly-recharge-api/)
- [Polar Physical info API](https://apis.io/apis/polar/polar-physical-info-api/)
- [Polar Physical info (deprecated) API](https://apis.io/apis/polar/polar-physical-info-deprecated-api/)
- [Polar Player training sessions API](https://apis.io/apis/polar/polar-player-training-sessions-api/)
- [Polar Pull notifications API](https://apis.io/apis/polar/polar-pull-notifications-api/)

## Tags

Cardio load

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/polar/polar-cardio-load-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/polar/.