Whatnot API scraper - the US/UK live-stream shopping marketplace: search products, live and scheduled auction shows, sellers and category tags; full product records with price, condition and seller reputation; live show records with viewer count and start time; every show a seller has coming up. No account, no browser.

base /whatnot/v15 endpoints

post/whatnot/v1/search1 credit

Search Whatnot by keyword. Choose the tab with `vertical`: products (buy-it-now and auction listings with price, condition attributes and seller reputation), shows (live and scheduled auction streams with viewer count and start time), users (sellers with rating, followers and items sold), categories (Whatnot's own category tags) or all (Whatnot's mixed 'Top' feed). Whatnot serves roughly 24 rows per query on this surface and reports whether it has more. Whatnot does not publish a running bid for auction items outside the show itself, so no bid field is returned.

Parameter		Allowed / range	Description
query	required	—	What to search for on Whatnot - a keyword, brand, card set, player or seller name.
vertical = all	optional	all · products · shows · users · categories	Which Whatnot search tab to read. An unknown value is rejected here because the site would silently answer with the mixed 'all' feed instead.

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post/whatnot/v1/product/detail1 credit

One Whatnot product listing in full: title, description, price, quantity, condition and the seller's own attributes (set, language, grade, rarity where the category has them), every image, when it was listed, whether offers are accepted, whether it is pinned in a show that is running right now, and the seller's public reputation (rating, reviews, followers, items sold, average ship days). Whatnot does not publish a running bid on the listing page.

Parameter		Allowed / range	Description
listing_id	required	—	Whatnot listing id - the value after /listing/ in the URL. A full listing URL or the plain numeric id also works.

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post/whatnot/v1/user/profile1 credit

One Whatnot seller's public profile: display name, bio, rating and review count, followers, following, items sold, average ship days, verified and Premier Shop status - plus every show they currently have live or scheduled, with start time and viewer count.

Parameter		Allowed / range	Description
username	required	—	Whatnot username - the name after /user/ in the profile URL. A full profile URL also works.

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post/whatnot/v1/category/shows1 credit

The live and scheduled shows of one Whatnot category tag (e.g. pokemon_cards, sneakers, sports_cards), each with its seller, start time, viewer count, categories and tags - the closest thing Whatnot has to a live auction calendar for a collecting niche.

Parameter		Allowed / range	Description
tag	required	—	Whatnot category tag - the name after /tag/ in the URL, e.g. pokemon_cards. `search` with vertical=categories finds the tag name for a keyword.

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post/whatnot/v1/livestream/detail1 credit

One Whatnot show: title, whether it is playing right now or still scheduled, its start time, how many people are watching at this moment, its categories and tags, thumbnail, and the seller running it with their follower and sold counts.

Parameter		Allowed / range	Description
livestream_id	required	—	Whatnot show id - the uuid after /live/ in the show URL. A full show URL also works.

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Example request · search

curl -X POST https://api.reefapi.com/whatnot/v1/search \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"query":"pokemon","vertical":"products"}'

Response shape

{
  "ok": true,
  "data": { /* the result */ },
  "meta": {
    "latency_ms": 240,
    "record_count": 12,
    "completeness_pct": 100
  },
  "error": null
}

Built for volume

5M+ requests a day

Measured at 60 requests a second across the fleet, with no central bottleneck. Volume pricing is on request, and per-key limits are raised for high-volume accounts.

Missing a source?

We build it

Tell us a site we do not cover yet and it becomes an engine. A customer asked for bestprice.gr on a Sunday and it was in the catalog the next day.

Support

2 minute median reply

Median time from a question in the live chat to the first answer, measured across every answered conversation. Setup help included, no support tier to buy.

One key, one balance

Every API included

No per-site plans and no separate subscriptions. One key and one credit pool across the whole catalog, so adding a source costs nothing up front.

Planning something large? Tell us the volume and the sources and we will come back with what it costs and what we would have to build.