The playground

Try any of 1042 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/amazon/v1/bestsellers1 credit

best-sellers ranking (optionally by category)

Parameters

categoryoptional

Department slug from the bestsellers URL (amazon.com/gp/bestsellers/<slug>). Verified slugs: electronics, books, toys-and-games, beauty, videogames, fashion, sporting-goods. Leave empty for all departments; an unknown slug returns 0 items.

marketplaceoptional

Which Amazon site to query (sets language and currency). Dropdown = the 19 verified marketplaces; other Amazon sites (e.g. eg, com.be) and forms like 'amazon.de'/'DE' are also accepted and normalized by the engine.

request preview

curl -X POST https://api.reefapi.com/amazon/v1/bestsellers \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{}'

Hit Send to run this endpoint live.