Search eBay for active auction-format listings and filter by bid count using the Buy Browse API
domain: developer.ebay.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
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
Known 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
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