Offer API | eBay Developers Program

Note: This is a Limited Icon (Limited Release). For information on how to obtain access to this API in production, see the Buy APIs Requirements.

You use the Offer API to place bids for buyers and return the buyer's bidding details of auctions where they have placed bids.

Find an auction

Use the Browse API search method to find an auction item the buyer wants to bid on.

Find an Auction

For example, the following searches by keyword and returns iPhone auctions.
```
/buy/browse/v1/item_summary/search?q=iphone&filter=buyingOptions:{AUCTION} 
```
Place a bid for the buyer

Use the Offer API placeProxyBid method to place a bid of the maximum amount the buyer is willing to pay for the item.
```
/buy/offer/v1_beta/bidding/{item_id}/place_proxy_bid
{
 "maxAmount": {
 "currency": "USD",
 "value": "800.00
 }
}
```
Retrieve buyer's bidding details

Use the Offer API getAuction method to retrieve the bidding details specific to the buyer.

Retrieve Bidding Details
```
/buy/offer/v1_beta/bidding/{item_id}
```
Determine if the buyer has won the auction.

You can check if the buyer has won the auction using the response from this call. If the value of auctionStatus is ENDED and the value of highBidder is true, this indicates the buyer has won the auction.
Get general bidding details

Use the Browse API getItem method to retrieve general bidding details about the auction, such as minimum bid price and the count of unique bidders.

General Bidding Details
```
/buy/browse/v1/item/{item_id}
```