The HelthFit exercise API
Clear step-by-step instructions, tips, muscles, levels and easier or harder versions for 510 exercises, with HelthFit's own 3D images and coach videos, plus 143 ready workouts. One simple JSON API, and an MCP server for AI assistants.
- 510
Exercises
Bodyweight, dumbbells and gym. Steps, a tip, muscles, MET effort, per-side and reps or time.
- 366
Coach videos
HelthFit's own 3D coach videos, plus a 3D image for 506 moves. Free to show with the credit line.
- 143
Ready workouts
From a 3-minute wake-up to full sessions, with every move, amount, round and rest.
Get a free key
We email the key to you, so use an address you can open. Free plan: 1,000 calls a month.
Try it
curl -H "X-API-Key: hf_live_..." \
"https://api.helthfit.com/v1/exercises?q=squat&equipment=bodyweight&limit=5"
curl -H "X-API-Key: hf_live_..." \
"https://api.helthfit.com/v1/exercises/push-ups"
curl -H "X-API-Key: hf_live_..." \
"https://api.helthfit.com/v1/workouts/suggest?minutes=15&area=glutes&level=beginner"| Route | What it gives |
|---|---|
GET /v1/exercises | Search: q, area, level, equipment, muscle, limit, offset |
GET /v1/exercises/{id} | One exercise: steps, tip, muscles, easier and harder, 3D image and video |
GET /v1/workouts | Ready workouts: q, level, equipment, area, minutes |
GET /v1/workouts/suggest | The workout closest to a length, focus, level and equipment |
GET /v1/workouts/{id} | One workout with every move and amount |
GET /v1/areas | Every area, level, equipment and muscle you can filter by |
GET /v1/openapi.json | The OpenAPI 3.1 file, for code generators and API tools |
Plans
Free
$01,000 calls a month, 30 a minute
Starter
$9 a month25,000 calls a month, 60 a minute
Pro
$29 a month150,000 calls a month, 120 a minute
Business
$99 a month1,000,000 calls a month, 300 a minute
Paid plans: write to [email protected], or subscribe on RapidAPI. Coming Pay per call with USDC (x402), no sign-up: a call without a key answers 402 with the price.
For AI assistants (MCP)
Add HelthFit to Claude, ChatGPT or any MCP client: it can search exercises, explain how to do one, suggest a ready workout and find the right HelthFit app. Free, no sign-in.
https://api.helthfit.com/mcpClaude: Settings → Connectors → Add custom connector, and paste the address. ChatGPT: Settings → Apps & Connectors (developer mode) → Create, and paste the address.
Use it fairly
- Show “Exercise data by HelthFit” with a link to www.helthfit.com wherever the data appears.
- Keep your key on your server, not in a public page or app.
- Don't resell the data as a database of its own. Full terms: API terms.
- The instructions are general fitness information, not medical advice.