Free during the beta
Every account gets the whole product. No card, no trial clock, nothing to cancel.
- 10,000 API requests a month, 5 a second
- eBay US and Vinted in 7 countries (FR · DE · UK · IT · ES · NL · PL)
- Every filter and field, including
fresh=trueto skip the cache - Unlimited lookups in the web tool while you're signed in
- Every search you run is added to tracking, so what you look up fills in fastest
Get a free API key Email only — no password, no card.
Questions
What happens after the beta?
We'll email every account before anything changes. There's no card on file, so you can't be charged by surprise — you'd only ever pay by choosing a plan yourself.
I need more than 10,000 requests a month
Email contact@swanum.com with what you're building and we'll raise it.
What counts as a request?
Each API response with status 200 from a data endpoint (/vinted/sold, /ebay/sold). /usage and /health are free. 4xx errors caused by bad parameters aren't counted, and 5xx/503 responses never are.
Do cached results count?
Yes — a cached answer is still an answer. Caching is why most responses come back in well under a second. Pass fresh=true to skip it.
How do you handle eBay Best Offer sales?
When a Best Offer is accepted eBay hides the real price and shows the original asking price struck through. We flag those items with best_offer_accepted: true and leave them out of the statistics unless you pass include_best_offer=true.
When does my quota reset?
On the 1st of each month (UTC). GET /usage tells you the exact time.
What would make Comps more useful to you?
A marketplace or country we're missing, an item that comes back empty, a filter, an export, a number you need — tell us and it goes to the top of the list.