Sell Items (Self-Trade)

Merchant-facing equivalent of POST /client/trading/deposit. Initiates a deposit trade where AssetPay receives the skins via Steam trade offer and credits the merchant’s USD wallet. There is no end-user: the trade URL is supplied per-request. Authentication: Merchant API Key (api-key header) Scope: CORE_ACCESS

Request

POST https://api.assetpay.gg/secure/sell
Content-Type: application/json
api-key: ap_...

{
  "tradeUrl": "https://steamcommunity.com/tradeoffer/new/?partner=12345&token=ABCDEFGH",
  "items": [
    { "itemId": "a1b2c3d4-...", "price": 10.75 }
  ],
  "game": "730",
  "externalId": "self_sell_001",
  "isInstant": true
}

Body Parameters

Parameter	Type	Required	Description
`tradeUrl`	string	Yes	Steam trade URL of the account selling the items
`items`	array	Yes	Items to sell (min 1, max 250)
`items[].itemId`	string	Yes	Item ID from `/secure/inventory`
`items[].price`	number	Yes	Offer price in USD. Must match the current offer price.
`items[].amount`	number	No	Quantity to sell from the item (integer, default `1`, max `10000`). Rust currently accepts only `1` per item; more fails with `EXCEEDS_MAX_AMOUNT` (18)
`game`	string	No	`"730"` or `"252490"`. Defaults to `"730"`.
`externalId`	string	No	Your unique tracking ID (max 128 chars)
`isInstant`	boolean	No	Request instant credit (default `false`). CS2 only: fails with `INSTANT_DEPOSITS_DISABLED` if instant deposits are off for your account. Rust is always credited up front, so the flag is not checked there.

Response

Returns a full Trade object with source: "self". Self-trades skip risk evaluation and carry no collateral. preCredit equals totalPrice when isInstant is true or the game is Rust. Otherwise preCredit is 0 and pendingCredit equals totalPrice until the trade completes.

{
  "requestId": "...",
  "success": true,
  "data": {
    "id": "trade-uuid",
    "type": "deposit",
    "source": "self",
    "status": "initiated",
    "game": "730",
    "externalId": "self_sell_001",
    "merchantId": "merchant-uuid",
    "clientSteamID": "76561198012345678",
    "clientTradeUrl": "https://steamcommunity.com/tradeoffer/new/?partner=12345&token=ABCDEFGH",
    "items": [ /* ... */ ],
    "totalPrice": 10.75,
    "preCredit": 10.75,
    "pendingCredit": 0,
    "isInstant": true,
    "collateral": { "merchant": 0, "provider": 0 },
    "createdAt": "2026-05-14T12:00:00.000Z",
    "updatedAt": "2026-05-14T12:00:00.000Z"
  }
}

A basket can be split into several trades, one Steam trade offer each. The response is then the primary trade, with the others in relatedTrades (each a full Trade). Your externalId is set on the primary trade only.

Differences from `/client/trading/deposit`

Risk evaluation is skipped and there is no collateral. Instant credit still follows isInstant on CS2: without it, the whole totalPrice stays in pendingCredit.
The per-client active/rolling deposit guard does not run on this route. Only the per-merchant tier throttle limits self-trades.
The trade is persisted with source: "self", and the API response carries that field so you can distinguish self-trades from client trades.
Webhooks still fire on every state change.

Rate Limits

Merchant Status	Limit
Verified	5,000 requests / min
Unverified	50 requests / min

Errors

Same set as POST /client/trading/deposit minus TOO_MANY_ACTIVE_TRADES (per-client guard never runs). RATE_LIMITED (1005) can still fire if the merchant-tier limits above are exceeded. A malformed tradeUrl fails with VALIDATION_FAILED (1001); INVALID_TRADEURL (13) means Steam rejected a well-formed one. Codes worth handling explicitly:

Code	Key	When
7	`USER_NOT_TRADEABLE`	The account can’t trade. When a Steam ban is the cause, `error.details` carries `vacBanned`, `gameBans` and `economyBan`
18	`EXCEEDS_MAX_AMOUNT`	`amount` is above what the item allows (anything above `1` on Rust)
19	`DEPOSIT_IN_PROGRESS`	Another deposit for the same Steam account, or another claim on the same overstock-limited item, is still in flight. Retryable: sent with `retry-after: 1`
29	`ESCROW_NOT_ALLOWED`	The trade would be held in Steam escrow (checked up front on Rust)
45	`ITEM_OVERSTOCKED`	We already hold the maximum of an item. `error.details.items[]` lists each refused item as `{ itemId, marketHashName, remaining }`
1001	`VALIDATION_FAILED`	The body failed validation, including a malformed `tradeUrl`. HTTP 400, see `error.fields`
1010	`NO_BOTS_AVAILABLE`	No Steam bot could take the trade offer. The trade is marked failed; retry shortly
1011	`FLEET_DEGRADED`	No Steam trade bot is available. HTTP 503 with `Retry-After: 30`
1014	`DEPOSITS_PAUSED`	Deposits for this game are temporarily paused

Overview

Authentication

Client

Trading

Secure

Verification

Wallet

Ledger

Sell Items (Self-Trade)

Request

Body Parameters

Response

Differences from `/client/trading/deposit`

Rate Limits

Errors

​Request

​Body Parameters

​Response

​Differences from /client/trading/deposit

​Rate Limits

​Errors

Request

Body Parameters

Response

Differences from `/client/trading/deposit`

Rate Limits

Errors