# WeFitter

**Canonical:** https://apis.io/providers/wefitter/  
**Website:** https://wefitter.com  
**APIs profiled:** 9

WeFitter is a health and fitness data platform ("one API to access wearable data, gamification and AI") operated by Thunderbyte.AI in Groningen, Netherlands. Its REST API aggregates health and activity data from 300+ wearables and fitness apps — Fitbit, Garmin, Google Fit, Apple Health, Withings, Polar, Oura, Whoop, Samsung Health, Huawei and more — into a single unified, deduplicated data model, and layers gamification (challenges, leaderboards, teams, points) and AI insights (biological age, recommendations) on top. Organizations use it to build corporate wellbeing, digital fitness, e-health and insurance solutions. WeFitter also ships mobile SDK bridges for Apple Health, Samsung Health and Android Health Connect.

## Kin Score — 50.7 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 50.7).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 60.8 |
| Governance | 16.7 |
| Contract Governance | 16.7 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 66.1 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

Regulatory layer — **Health**: 31.3 (matched via tags).

## Agent readiness — 35.7 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | yes |
| Agent Skills | derived |
| 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 (9)

- **WeFitter app API** — The app API from WeFitter — 1 operation(s) for app.
- **WeFitter challenge API** — WeFitter API’s challenge engine will bring endless engagement to your platform. For more information about the possibilities in challenges please go to https://www.wefitter.com/...
- **WeFitter connection API** — Connections are the links between profiles and their wearables.
- **WeFitter insights API** — The insights API from WeFitter — 1 operation(s) for insights.
- **WeFitter loyalty API** — The loyalty API from WeFitter — 2 operation(s) for loyalty.
- **WeFitter notification API** — Send a notification to all devices for the specified profiles The data will be sent to the client in the following format: ``` { "app": <app public id>, "title": <title>, "body"...
- **WeFitter profile API** — Profiles are containers for wearables data. The profiles can be seen as an extension of users in a different system. Profiles are anonymous objects which can participate in team...
- **WeFitter team API** — The team API from WeFitter — 5 operation(s) for team.
- **WeFitter token API** — <p> Before any calls can be made to wefitter, BasicAuth is needed to verify the identity of the requesting party. This call will result into a Bearer token which has administrat...

## MCP servers (1)

- **WeFitter MCP Server**

## Agentic access (1)

- **Wefitter Agentic Access** — 77 operations · 34 acting

## Security (2)

- **Wefitter Authentication** — apiKey/http · 2 schemes
- **Wefitter Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Company, Health, Fitness, Wearables, Health Data, Wellbeing, Gamification, Digital Health, Insurance, Activity Tracking

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/wefitter/). Scores are computed from the provider's own public artifacts under a published rubric.