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post/domain-availability/v1/suggest1 credit

Name variations (prefix/suffix/TLD permutations, deterministic — no LLM) each with a live availability verdict; available ones surfaced first.

Working example
Parameters

A bare app/brand name label (e.g. 'myapp', 'My Startup' → 'my-startup'). Spaces/underscores become hyphens; the TLD is added separately via 'tlds'.

TLDs to check (comma-separated string or array, with or without a dot). Defaults to com,io,ai,app,dev,co. Any valid TLD label is accepted (not just the suggested list); capped at 60.

Which availability signal(s) to use. 'both' (default) is the most accurate: RDAP for registrar-grade facts + DNS to disambiguate TLDs that have no RDAP server (io/co/me).

request preview
curl -X POST https://api.reefapi.com/domain-availability/v1/suggest \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"name":"reefapi","tlds":"com,io,ai"}'

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