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/dev-utils/v1/markdown1 credit

Render CommonMark+tables markdown → sanitized HTML (raw HTML escaped, XSS-safe) + heading TOC with slugs.

Working example

Parameters

inputrequired

The markdown source.

request preview

curl -X POST https://api.reefapi.com/dev-utils/v1/markdown \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"input":"# Hello\n\nworld **bold**\n\n## Sub Title"}'

Hit Send to run this endpoint live.