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API Reference - Ideal Postcodes

API Reference - Ideal Postcodes — keyless JSON API

🗺 Geo & MapsHEALTHYchecked 4h ago
AUTH NONECORS ✓AGENT ✓HTTPS ✓COMMERCIAL ?

API Reference - Ideal Postcodes. Getting Started Overview Access All API methods are either a GET, POST or OPTIONS request. The API communicates over both HTTPS and plain HTTP using IPv4 and IPv6. We recommend using HTTPS only although HTTP is available. We use appropriate HTTP status codes where possible to in

99HOW IT'S SCORED ⓘ
▶ Run liveDocs ↗
Status badge · for your READMEshipapis health badge: 99 · healthy
Uptime history
100%90 days
100%30 days
152P50 · ms
831P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 12 ms, slowest 547 ms, most recent 12 ms.
Live response samplecaptured by our last successful check
GET https://api.ideal-postcodes.co.uk/

{
  "message": "Success",
  "code": 2000,
  "result": {
    "message": "Thanks for trying ideal-postcodes.co.uk. To find out how to use this API please visit https://docs.ideal-postcodes.co.uk",
    "links": {
      "website": "https://ideal-postcodes.co.uk",
      "documentation": "https://docs.ideal-postcodes.co.uk",
      "status_page": "https://status.ideal-postcodes.co.uk",
      "openapi": "https://openapi.ideal-postcodes.co.uk",
      "developer_chat": "https://chat.ideal-postcodes.co.uk",
      "github": "https://github.com/ideal-postcodes"
    }
  }
}
Call itcurl · fetch · python
curl "https://api.ideal-postcodes.co.uk/"
const res = await fetch("https://api.ideal-postcodes.co.uk/");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://api.ideal-postcodes.co.uk/")
print(res.json())
Endpoints · 6HealthyFULL DOCS ↗
Monitored path responding — GET /152 mschecked 4h ago
GET/PROBED

API Reference - Ideal Postcodes — keyless JSON API

GET/?limit=5

Paginated variant with limit parameter.

GET/postcodes/{postcode}

Lookup Postcode

GET/udprn/{udprn}

Retrieve by UDPRN

GET/umprn/{umprn}

Retrieve by UMPRN

GET/keys/{key}

Availability

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.

API Reference - Ideal Postcodes: common questions

Is API Reference - Ideal Postcodes free to use?

Yes — API Reference - Ideal Postcodes is a free geo & maps API. Free tier: Free — limits not published. Whether the free tier allows commercial use is unclear — check the provider docs.

Does API Reference - Ideal Postcodes need an API key?

No — API Reference - Ideal Postcodes needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call API Reference - Ideal Postcodes from the browser?

Yes — API Reference - Ideal Postcodes 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 API Reference - Ideal Postcodes up right now?

As of our last scheduled check, API Reference - Ideal Postcodes is healthy with 100% uptime over 90 days and a 152 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.