API referenceOfficial · Sell Orders
Send a seller-initiated trade offer
Creates a Steam trade offer for a sell order in the `SELLER_TO_SEND_OFFER` state.
POST
/api/market/developer/sell_order/send_offerCreates a Steam trade offer for a sell order in the SELLER_TO_SEND_OFFER state.
The seller must first upload valid Steam cookies with the Steam setup or cookie endpoint.
Authorization
bearer AuthorizationBearer <token>
BUFF developer API token. Send it as Authorization: Bearer <token>.
In: header
Request Body
application/json
TypeScript Definitions
Use the request body type in TypeScript.
Response Body
curl -X POST "https://example.com/api/market/developer/sell_order/send_offer" \ -H "Content-Type: application/json" \ -d '{ "order_id": "250805T1093434037" }'Empty