Lookup.im API

Lookup.im API — free tier with API key

📚 Open DataHEALTHYchecked 6h ago
AUTH APIKEYCORS AGENT HTTPS COMMERCIAL ?

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

84HOW IT'S SCORED ⓘ
Status badge · for your READMEshipapis health badge: 84 · healthy
Uptime history
99.02%90 days
100%30 days
1158P50 · ms
3581P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 79 ms, slowest 2681 ms, most recent 688 ms.
Live response samplecaptured by our last successful check
GET https://lookup.im/api.php

{
  "status": "error",
  "message": "Invalid Request"
}
Call itcurl · fetch · python
curl "https://lookup.im/api.php"
const res = await fetch("https://lookup.im/api.php");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://lookup.im/api.php")
print(res.json())

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

Endpoints · 2HealthyFULL DOCS ↗
Monitored path responding — GET /api.php1158 mschecked 6h ago
GET/api.phpPROBED

Lookup.im API — free tier with API key

GET/api.php?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.

Lookup.im API: common questions

Is Lookup.im API free to use?

Yes — Lookup.im API 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 Lookup.im API need an API key?

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 Rate limits: Unpublished.

Can I call Lookup.im API from the browser?

Not directly — Lookup.im API 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 Lookup.im API up right now?

As of our last scheduled check, Lookup.im API is healthy with 99.02% uptime over 90 days and a 1158 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.