Check auction status and place a buyer proxy bid on an eBay item using the Buy Offer API bidding resource
domain: developer.ebay.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Authenticate with an OAuth user token that carries the auction bidding scope required by the Offer API
Call getBidding with the item ID to read currentPrice, bidCount, reservePriceMet, and suggestedBidAmounts
Call placeProxyBid with the maximum amount the buyer is willing to pay for the item
Read the returned proxyBidId to confirm eBay accepted the bid
Poll getBidding again as the auction nears its end time to check whether the buyer remains the high bidder
Known gotchas
The Offer API bidding resource is a limited-release API; access is granted only to developers approved for the specific auction bidding scope, not included in general Buy API access
reservePriceMet only appears once a reserve price, if any, has been reached by bidding
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