Overview
Wger is an open-source workout manager API that provides structured data on exercises, muscle groups, and equipment. You can query a database of hundreds of exercises complete with images, instructions, and the muscles they target. It is ideal for building fitness apps, workout planners, or personal training tools.
Beginner Tip
Wger has a public read-only endpoint that requires no API key—just send a GET request to retrieve exercise lists. Add an API key in the Authorization header only when you need to write or modify user-specific data.
Available Data
The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.
Example Response
Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.
{
"match_id": 4521,
"home_team": "Team A",
"away_team": "Team B",
"score": {
"home": 2,
"away": 1
},
"status": "Full Time",
"date": "2025-01-15",
"league": "Premier League"
} Field Reference
id Unique identifier for the exercise in the Wger database name Human-readable name of the exercise in the requested language description HTML-formatted instructions on how to perform the exercise correctly muscles List of primary muscle group IDs targeted by this exercise equipment List of equipment IDs required to perform the exercise category The exercise category object containing id and name fields Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://wger.de/api/v2/exercise/?format=json&language=2&limit=20";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"X-API-Key": "YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Metadata Score Breakdown
Estimated from metadata — endpoint not independently tested
Metadata estimate · endpoint not independently tested
Technical Specifications
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