A free REST API for fitness and workout apps. Get 1,300+ exercises with animated GIFs, target muscles, equipment, difficulty, calories, and step-by-step instructions — all from a single endpoint.

Get Free API Key · View Docs · Try on RapidAPI

1. Go to workoutxapp.com and sign up (free, no credit card)
2. Copy your API key from the dashboard

curl -H "X-WorkoutX-Key: wx_your_key" \
  "https://api.workoutxapp.com/v1/exercises?limit=3"

[
  {
    "id": "0032",
    "name": "Barbell Deadlift",
    "bodyPart": "Upper Legs",
    "equipment": "Barbell",
    "target": "Glutes",
    "secondaryMuscles": ["Hamstrings", "Lower Back"],
    "category": "strength",
    "difficulty": "intermediate",
    "met": 6.0,
    "caloriesPerMinute": 7.3,
    "instructions": [
      "Stand with feet shoulder-width apart, barbell over mid-foot.",
      "Hinge at hips, grip bar outside legs, keep back flat.",
      "Drive through heels, extend hips and knees to stand.",
      "Lower the bar with control back to the ground."
    ],
    "gifUrl": "https://api.workoutxapp.com/v1/gifs/0032"
  }
]

Base URL: https://api.workoutxapp.com

Authentication: Pass your key in the X-WorkoutX-Key header on every request.

Body parts: back · cardio · chest · lower arms · lower legs · neck · shoulders · upper arms · upper legs · waist

Ready-to-run examples in 8 languages/frameworks:

Every example has its own README with setup instructions.

• Fitness mobile apps — iOS, Android, Flutter, React Native
• Workout web apps — exercise search, workout builders, program generators
• Personal trainer tools — custom client plans with visual demos
• AI & health platforms — enrich recommendations with structured exercise data
• Wearable integrations — serve exercise data to watch apps
• Content & blogs — embed GIFs and exercise info in articles

Subscribe on RapidAPI and use these headers instead:

X-RapidAPI-Key: YOUR_RAPIDAPI_KEY
X-RapidAPI-Host: (copy from RapidAPI Code Snippets)

All plans include the full exercise database with GIF animations. See pricing →

See docs/tutorial.md for a detailed, step-by-step guide on building a fitness app with the WorkoutX API.

Found a bug in an example? Want to add a new language? PRs are welcome! See CONTRIBUTING.md.

• Website: workoutxapp.com
• Docs: workoutxapp.com/docs.html
• RapidAPI: WorkoutX on RapidAPI
• Status: API status

MIT — example code is free to use. The API itself is subject to WorkoutX terms.

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