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SniffCat

Check. Report. Defend.

🔐 SecurityREACHABLEchecked 7h ago
AUTH APIKEYCORS ✗AGENT ✓HTTPS ✓COMMERCIAL ✓

We help you identify and report abusive IP addresses quickly, accurately, and with full respect for privacy. A solution built for system administrators, developers, and network engineers who need real-time, actionable abuse data. Version 0.4.0.

94REACHABILITY SCORE ⓘ
Docs ↗
Status badge · for your READMEshipapis health badge: — · healthy
CHECK TIER · REACHABILITY

We probe without your API key. A 401/403 auth wall means the server is up — not a full health pass.

Uptime history
94.4%90d reachable
93.3%30d reachable
7hLast check · since AUG 19 · server OK
operationalpartialdownno data
Call itcurl · fetch · python
curl "https://api.sniffcat.com/api/v1/check?ip=1.1.1.1"
const res = await fetch("https://api.sniffcat.com/api/v1/check?ip=1.1.1.1");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://api.sniffcat.com/api/v1/check?ip=1.1.1.1")
print(res.json())

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

Endpoints · 1ReachableFULL DOCS ↗
Auth wall reachable — GET /api/v1/check?ip=1.1.1.1 (key stripped)345 mschecked 7h ago
GET/api/v1/check?ip=1.1.1.1PROBED

Check. Report. Defend.

Machine-readable spec

We probe without your API key. A 401/403 auth wall means the server is up — not a full health pass. 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.

SniffCat: common questions

Is SniffCat free to use?

Yes — SniffCat is a free security API. Free tier: . Commercial use is allowed on the free tier.

Does SniffCat need an API key?

Yes — SniffCat needs a free API key, which you pass on each request. Rate limits: Retry-After: 24s.

Can I call SniffCat from the browser?

Not directly — SniffCat 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 SniffCat up right now?

As of our last scheduled check, SniffCat is healthy with 94.4% uptime over 90 days and a 345 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.