The playground

Try any of 817 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/url-resolver/v1/preview1 credit

Link unfurl: OpenGraph + Twitter-card title/description/image/favicon (Slack/Discord style).

Working example
Parameters

Any http(s) URL — short, affiliate, ad, tracking, or canonical. Only http/https is accepted; private/internal/metadata targets are SSRF-blocked.

Maximum redirects to follow (1–10). (1–10)

request preview
curl -X POST https://api.reefapi.com/url-resolver/v1/preview \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"url":"https://www.example.com/"}'

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