The playground

Try any of 1465 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-intel/v1/whois1 credit

Domain registration (WHOIS) via RDAP: registrar (+ IANA id), reseller, status flags, created/updated/expires dates, nameservers, DNSSEC flag, abuse contact, and registrant (org-only unless include_pii). Legacy-WHOIS-only TLDs (.io/.de) return NOT_FOUND — see tld_detail.

Working example
Parameters
request preview
curl -X POST https://api.reefapi.com/domain-intel/v1/whois \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"domain":"github.com"}'

Hit Send to run this endpoint live.

Playground · ReefAPI