Sell items
Auth context: sub-user — On-Behalf-Of required. Rate limit: expensive.
Sell one or more inventory items to a SkinShark bot. Each items[] references
an item by id (from /market/sell/inventory) or raw assetid — exactly one —
plus the exact price you were quoted (cent-exact lock; a stale quote fails with
PRICE_MISMATCH).
No money moves at creation. The API picks a bot and sends the user a receive-only
Steam trade offer; the Trade returns immediately with status initiated. The user
must accept the Steam offer, after which status flows active → hold → completed.
Payout is a single credit from house treasury, applied at hold if the merchant’s
instant-credit setting is on, otherwise at completed. A reverted trade is absorbed
by SkinShark — never clawed back from the user. Sells always target the user’s own
saved trade URL. Subscribe to trade.* WS events for status updates.
Common error keys: STEAM_ACCOUNT_REQUIRED (1417), USER_NOT_TRADEABLE (2101),
INVENTORY_PRIVATE (2102), ESCROW_NOT_ALLOWED (2105), NO_OFFER_FOUND (2107),
ITEMS_NOT_ACCEPTED (2108), PRICE_MISMATCH (2020), DUPLICATE_LISTING_ID (2023),
NO_BOTS_AVAILABLE (2100), PRICING_UNAVAILABLE (2109), TRADE_LIMIT_EXCEEDED.
Authorizations
Your raw API key. Generate, rotate, and revoke keys from the merchant
dashboard. Keys can optionally be bound to one or more allowed source
IPs — requests from any other IP are rejected with API_KEY_IP_DENIED.
Headers
Sub-user UUID or the merchant's externalId for that sub-user.
Required for sub-user-context routes; rejected (via requireMerchant)
on merchant-context routes.
1 - 128Body
1 - 100 elementsOptional. Must belong to the same Steam account linked to the user (validated against their
steamId) — it can only re-point to the user's own trade URL, never redirect payout items
elsewhere. Omit to use the user's saved trade URL. Rejected with TRADEURL_STEAM_MISMATCH
on mismatch.
Your own correlation id, echoed back on the Trade. Idempotent per user.
128