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/hosting1 credit
Hosting / ASN / IP-owner: resolves the domain's A+AAAA IPs and looks up each via Team Cymru — ASN, announced prefix, country, RIR, AS-name (network owner) + reverse DNS. Tells you who hosts a domain and on what network.
Working example
Parameters
request preview
curl -X POST https://api.reefapi.com/domain-intel/v1/hosting \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"domain":"github.com"}'Hit Send to run this endpoint live.