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APIs.guru

A machine-readable directory of public OpenAPI specifications

🔧 Developer ToolsUNMONITOREDchecked 44 min ago
AUTH NONECORS ✓AGENT ✓HTTPS ✓COMMERCIAL ?

APIs.guru maintains a large, community-curated catalog of OpenAPI/Swagger definitions for public web APIs. The metrics endpoint gives a compact snapshot of the directory: how many specs, APIs, and endpoints are indexed plus counts of unreachable or invalid entries. The full listing is also keyless but large, so metrics is a friendlier sample.

—HOW IT'S SCORED ⓘ
▶ Run liveDocs ↗
Status badge · for your READMEshipapis health badge: — · unmonitored
Uptime history
—%90 days
—%30 days
—P50 · ms
—P95 · ms
operationalpartialdownno data
Live response samplecaptured by our last successful check
GET https://api.apis.guru/v2/metrics.json

{
  "numSpecs": 3992,
  "numAPIs": 2529,
  "numEndpoints": 108837,
  "unreachable": 166,
  "invalid": 688,
  "unofficial": 25,
  "fixes": 84860
}
Call itcurl · fetch · python
curl "https://api.apis.guru/v2/metrics.json"
const res = await fetch("https://api.apis.guru/v2/metrics.json");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://api.apis.guru/v2/metrics.json")
print(res.json())
Endpoints · 2On scheduleFULL DOCS ↗
First rollup pending — GET /metrics.json has been probed
GET/metrics.jsonPROBED

A machine-readable directory of public OpenAPI specifications

GET/metrics.json?limit=5

Paginated variant with limit parameter.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

APIs.guru: common questions

Is APIs.guru free to use?

Yes — APIs.guru is a free developer tools API. Free tier: Free and open, no key. Whether the free tier allows commercial use is unclear — check the provider docs.

Does APIs.guru need an API key?

No — APIs.guru needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call APIs.guru from the browser?

Yes — APIs.guru returns CORS headers over HTTPS, so front-end code can fetch it directly with no backend proxy. Use the fetch snippet on this page, or hit "Run live" to try it now.

Is APIs.guru up right now?

As of our last scheduled check, APIs.guru is unmonitored. We re-probe it every sweep — the status badge and uptime chart above always show the latest.