WorthPoint is a subscription you log into. This is an endpoint you call. On the categories most people actually look up, the sales come from the same place.
Credit where it is due. WorthPoint has been running since 2007 and holds a very large archive that includes auction houses and estate sales, which eBay never touched. If you are valuing a genuinely rare one off piece, a twenty year archive with auction records in it can hold the only comparable sale in existence. We do not have that and will not pretend to.
Most lookups are not rare one offs. They are a piece of Roseville pottery, a Fenton hobnail bowl, a Pyrex casserole, a Griswold skillet, a mid century sideboard. Those sell on eBay constantly, which is why subscribers themselves describe the data as coming from eBay completed listings. For those items you are paying a yearly subscription for sales you could read directly.
The other limit is shape. A price guide answers one question at a time through a browser. If you are pricing a shelf of stock, feeding a valuation tool, or building anything on top, a search box is the wrong interface and there is no API to escape to.
| Subscription price guides | CompsAPI | |
|---|---|---|
| Interface | Search box, one item at a time | JSON endpoint, up to 240 sales per request |
| History | Long archive, auction records included | 1,095 days of eBay completed sales |
| Best Offer sales | Asking price, as the public page shows it | The accepted price, flagged per row |
| Bulk work | Not really possible | What it is built for |
| Starting price | Around $250 a year | Free key, no card, then $9 |
Any source that reads eBay's public sold page reports the asking price on an accepted Best Offer, because the negotiated figure is not published there. We hold both and measured the gap across 5,859 matched sales: the public figure read high 99.0% of the time, by a median of 14.9%. In offer heavy categories like jewellery that ran 17.6%. If you value antiques from asking prices you are reading a number that is consistently too high, and nothing in the data tells you so. The study is here.
Verified on 12 October 2026, three year window, completed sales on the first page alone:
| Search | Completed sales |
|---|---|
Roseville pottery vase | 199 |
Fenton hobnail milk glass | 199 |
Pyrex Gooseberry casserole | 198 |
Griswold cast iron skillet 8 | 199 |
1921 Morgan silver dollar | 199 |
curl -G https://api.compsapi.com/v1/sold \
-H "Authorization: Bearer YOUR_KEY" \
--data-urlencode "q=charizard psa 10" \
--data-urlencode "days=1095" \
--data-urlencode "best_offer=1"No card, no sales call, no eBay developer account. More on antiques and collectibles, or see pricing.
100 free requests a month · every filter on · no card
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