The playground

Try any of 1462 endpoints — live.

Pick an endpoint, load a working example, tweak the params, and send — no signup to try. Results render the way the data deserves; raw JSON, headers & code are one tab away.

Playground demo key · api.reefapi.com
post/domain-risk/v1/assess1 credit

Comprehensive fraud and security risk report for one domain: a 0-100 risk score, human-readable reasons, and a risk level (low / medium / elevated / high). Combines domain age, expiry status, parked/for-sale detection, TLS certificate presence, hostname structure, brand impersonation signals, and email/DNSSEC legitimacy into a single verdict. The primary action for phishing detection and brand protection.

Working example
Parameters
request preview
curl -X POST https://api.reefapi.com/domain-risk/v1/assess \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"domain":"google.com","check_parked":"false"}'

Hit Send to run this endpoint live.