The playground
Try any of 919 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/passive-osint/v1/ip1 credit
Passive IP enrichment: rDNS (PTR) + ASN/org/country (Team-Cymru + RDAP) + threat blocklist flags + shared-host neighbours (reverse-IP + OTX IPv4 passive-DNS)
Working example
Parameters
A single IPv4 address to enrich (rDNS + ASN/org/country + threat + shared-host neighbours).
If true, reveal the RDAP abuse mailbox / contact email. Default false → contact emails are masked (R17 privacy hygiene).
request preview
curl -X POST https://api.reefapi.com/passive-osint/v1/ip \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"ip":"8.8.8.8"}'Hit Send to run this endpoint live.