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OpenCorporates

OpenCorporates — free tier with API key

📚 Open DataUNMONITOREDchecked 42 min ago
AUTH APIKEYCORS ✗AGENT ?HTTPS ✓COMMERCIAL ?

OpenCorporates exposes a free-tier JSON API. Register for an API key if required; we verified a public or demo endpoint.

—HOW IT'S SCORED ⓘ
Docs ↗
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.opencorporates.com/companies/nl/17087985

{
  "error": {
    "message": "Invalid Api Token. Please check your OpenCorporates account"
  }
}
Call itcurl · fetch · python
curl "https://api.opencorporates.com/companies/nl/17087985"
const res = await fetch("https://api.opencorporates.com/companies/nl/17087985");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://api.opencorporates.com/companies/nl/17087985")
print(res.json())

BROWSER CALLS BLOCKED (NO CORS/HTTPS) — USE THE CURL SNIPPET

Endpoints · 6On scheduleFULL DOCS ↗
First rollup pending — GET /companies/nl/17087985 has been probed
GET/companies/nl/17087985PROBED

OpenCorporates — free tier with API key

GET/companies/nl

Nl — documented GET route.

GET/companies/nl/1

Nl details by ID (example: 1).

GET/companies

Companies — documented GET route.

GET/companies/1

Companies details by ID (example: 1).

GET/companies?limit=10

Companies — documented GET route.

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.

OpenCorporates: common questions

Is OpenCorporates free to use?

Yes — OpenCorporates is a free open data API. Free tier: Free tier — API key required. Whether the free tier allows commercial use is unclear — check the provider docs.

Does OpenCorporates need an API key?

Yes — OpenCorporates needs a free API key, which you pass on each request. Rate limits: Unpublished.

Can I call OpenCorporates from the browser?

Not directly — OpenCorporates doesn't send browser-friendly CORS headers, so call it from a server or proxy instead. Copy the curl or Python snippet on this page to get started.

Is OpenCorporates up right now?

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