Hudson

Real eBay sold comps (completed listings) for any product keyword. One call returns up to 240 real sold rows plus a median/range summary (median, mean, min, max, p25, p75, average shipping), served cache-first from our own corpus. Built for pricing tools, repricing, resale, and AI agents that need to know what something actually sold for. Requires a Grail API key — free tier is 100 requests/month, no card.