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  • New Feature: The Inventory Mapping API helps you turn your existing product data into high-quality listings with AI-powered recommendations. Learn more here.
  • Important Update: eBay's API integrations will be modified to address data handling requirements for select developers. Usernames will be replaced with immutable user IDs, and financial data will be protected for certain users. Learn more here.
  • Action required: From early May, API users must include standardized condition details when creating or updating listings. Update your integration to stay compliant. Learn more here.

Note: This is a Limited Release(Limited Release) API available only to select developers approved by business units. For information on how to obtain access to this API in production, see the Buy APIs Requirements.

The Buy Offer API enables Partners to place proxy bids for a buyer and retrieve the auctions where the buyer is bidding. By placing a proxy bid, the buyer is agreeing to purchase the item if they win the auction.

bidding

Method NameHTTP MethodPathSummarySamples
getBiddingGET/bidding/{item_id}Retrieves bidding details on an auction item for which the user is an active bidder.View getBidding - /bidding/{item_id}
placeProxyBidPOST/bidding/{item_id}/place_proxy_bidEnables automatic bidding for a user on an auction item up to a maximum amount that the user is willing to bid.View placeProxyBid - /bidding/{item_id}/place_proxy_bid