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The playground

Try any of 3860 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/myslabs/v1/listing2 credits

One MySlabs listing in full — live, sold or an auction lot: title, category, raw condition, description, price, buy-now / make-an-offer and the seller's minimum offer, shipping cost, checkout options, views and watchers, the grading company the site verifies certs against, card identity (year, grade, card number, print run, cert when the seller wrote it), all photos; sold listings add sold price and date; auction lots add auction name, current / final bid, bid count, end time, reserve status, next minimum bid and the bid history.

Working example
Parameters

A listing id (rows[].listing_id) or a myslabs.com/slab/view/<id>/ or /auction/view/<lot>/ URL.

An auction lot id (rows[].auction_lot_id) — instead of listing_id.

Auction lots: also fetch the live status (reserve, next minimum bid) and the bid history (masked bidder as the site prints it, amount, time).

Ask Reef AI
request preview
curl -X POST https://api.reefapi.com/myslabs/v1/listing \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"listing_id":"1971429"}'

Press Send request to see the live result here.

Not sure what to send? Ask Reef AI

What you can run here, without an account

ReefAPI is one HTTP gateway to 632 live web-data APIs covering 3860 endpoints across 13 categories. Every endpoint answers with the same JSON envelope, so one integration reaches all of them. Each response reports what it cost and when the source was read.

No signup, no API key and no card are required to try an endpoint on this page. Anonymous calls run on a shared demo key, capped at 15 calls per hour per visitor. Pick an API, fill the parameters and the real response comes back from the live source, not from a canned sample. A free account lifts the cap and gives you 1,000 credits and your own key.

Browse every API in the catalog, read an endpoint's fields and example response in the docs, or see per-call credit costs on the pricing page.

Coverage by category

ecommerce350
classifieds116
real-estate29
media25
utilities18
jobs18
developer-tools18
reviews15
social15
search-seo11
travel8
other5
finance4