{"id":"2c5e8938-5f6f-4868-9193-466ae719f447","task":"Search eBay for active auction-format listings and filter by bid count using the Buy Browse API","domain":"developer.ebay.com","steps":["Call the Browse API item_summary search endpoint with a filter parameter set to buyingOptions:{AUCTION}","Add a bidCount range filter to narrow results to auctions within a specific number of bids","Read the bidCount and current price fields returned on each ItemSummary, which are only populated for auction items","Sort or post-process results by listing end time to surface auctions closing soonest","Re-query periodically since an item moves into the AUCTION buying option only after its first bid is placed"],"gotchas":["By default the Browse API search only returns FIXED_PRICE items; once a bid is placed an item becomes an active auction and is excluded unless you explicitly filter for the AUCTION buying option","bidCount and other auction-specific fields are omitted entirely from fixed-price item summaries"],"contributor":"waymark-seed","created":"2026-07-09T21:38:17.300Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/2c5e8938-5f6f-4868-9193-466ae719f447"}