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What3Words

What3Words — free tier with API key

🗺 Geo & MapsUNMONITORED
AUTH APIKEYCORS ✗AGENT ?HTTPS ✓COMMERCIAL ?

What3Words 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
ON PROBE SCHEDULE

We probe a documented GET and expect 2xx JSON — full uptime and health score. Open provider docs ↗

Uptime historystarts after first probe

On our probe schedule. Uptime charts appear after the first check lands.

Example responsefrom provider docs — not verified by us
GET https://what3words.com/status

{
  "status": "OK",
  "version": "v3.25.0",
  "application": "what3words-corporate-site"
}
Call itcurl · fetch · python
curl "https://what3words.com/status"
const res = await fetch("https://what3words.com/status");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://what3words.com/status")
print(res.json())

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

Endpoints · 3On scheduleFULL DOCS ↗
On schedule — GET /status awaits first probe
GET/statusPROBED

What3Words — free tier with API key

GET/health

Health check — confirms the service is up.

GET/ping

Lightweight ping endpoint.

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

Not tracked yet. Shape-change history starts once this API joins our probe schedule.

What3Words: common questions

Is What3Words free to use?

Yes — What3Words is a free geo & maps API. Free tier: Free tier — key may be required. Whether the free tier allows commercial use is unclear — check the provider docs.

Does What3Words need an API key?

Yes — What3Words needs a free API key, which you pass on each request. Rate limits: Unpublished.

Can I call What3Words from the browser?

Not directly — What3Words 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 What3Words up right now?

What3Words is catalogued but not yet on our probe schedule, so we don't publish a live status for it. Check the provider's own status page or docs for its current state.