Initiate Deposit - AssetPay

Initiates a deposit (sell) trade. The user’s items are sent via Steam trade offer and the value is credited to your merchant balance. Authentication: Client Token (Authorization header)

Request

POST https://api.assetpay.gg/client/trading/deposit
Content-Type: application/json
Authorization: CLIENT_TOKEN

{
  "items": [
    {
      "itemId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "price": 10.75
    }
  ],
  "game": "730",
  "externalId": "dep_unique_123",
  "isInstant": true
}

Body Parameters

Parameter	Type	Required	Description
`items`	array	Yes	Items to deposit (min 1, max 250)
`items[].itemId`	string	Yes	Item ID from inventory (5–256 chars)
`items[].price`	number	Yes	Offer price in USD. Must equal the current offer price returned by `/client/inventory`, validated server-side.
`items[].amount`	number	No	Quantity for stackable Rust items (default: 1, max: 10000)
`game`	string	No	`"730"` or `"252490"`. Defaults to `"730"`.
`externalId`	string	No	Your unique tracking ID (max 128 chars). Must be unique per trade.
`isInstant`	boolean	No	Request instant credit during hold period (default: `true`)

Response

{
  "requestId": "...",
  "success": true,
  "data": {
    "id": "trade-uuid",
    "type": "deposit",
    "source": "client",
    "status": "initiated",
    "game": "730",
    "externalId": "dep_unique_123",
    "merchantId": "merchant-uuid",
    "clientUserId": "client-uuid",
    "clientSteamID": "76561198012345678",
    "clientTradeUrl": "https://steamcommunity.com/tradeoffer/new/?partner=...",
    "items": [
      {
        "id": "a1b2c3d4-...",
        "name": "AK-47 | Redline",
        "marketHashName": "AK-47 | Redline (Field-Tested)",
        "type": "Rifle",
        "iconUrl": "IzMF03bk9WpSBq-S-ekoE33L-iLqGFHVaU25ZzQNQcXdA3g5gMEPvUZZEfSMJ6dESN8p_2SVTY7V2N4MxGVIwXpaL3_a3Hh...",
        "appid": 730,
        "tradable": true,
        "marketPrice": 12.50,
        "offer": {
          "price": 10.75,
          "reference": "ref_abc123",
          "accepted": true
        },
        "exterior": "Field-Tested",
        "wear": "0.25432"
      }
    ],
    "totalPrice": 10.75,
    "isInstant": true,
    "createdAt": "2026-03-04T10:00:00.000Z",
    "updatedAt": "2026-03-04T10:00:00.000Z"
  }
}

The response is a full Trade object. After creation, the trade progresses through callbacks. See Trade Lifecycle.

Rate Limits

Per-merchant tier throttle (shared across all clients of the same merchant):

Merchant Status	Limit
Verified	500 requests / min
Unverified	5 requests / min

Per-client guard (scoped per (merchant, clientSteamId)):

Constraint	Limit	Error key
Concurrent active deposits	5	`TOO_MANY_ACTIVE_TRADES` (HTTP 429)
Deposits initiated in any rolling 5-minute window	10	`RATE_LIMITED` (HTTP 429)

An “active” deposit is any not-yet-accepted trade (initiated or active). The per-client guard runs before pricing/inventory fetches, so rate-limited requests bail cheap.

Errors

Code	Key	When
1	`EXTERNAL_ID_EXISTS`	The `externalId` is already in use
2	`MISSING_ITEMS`	Empty items array
3	`INVENTORY_FETCH_FAILED`	Couldn’t load user’s inventory
4	`NO_OFFER_FOUND`	No valid offer for this item
6	`TOO_MANY_ACTIVE_TRADES`	Client has 5+ active deposits (see Rate Limits)
7	`USER_NOT_TRADEABLE`	User’s Steam account can’t trade
8	`TOO_MANY_ITEMS`	Too many items in one request
9	`ITEMS_UNAVAILABLE`	Items not found in inventory
10	`ITEMS_NOT_ACCEPTED`	Items not accepted for deposit
11	`PRICE_CHANGED`	Offer price has changed since fetch
13	`INVALID_TRADEURL`	User’s trade URL is invalid
17	`INSUFFICIENT_ITEM_AMOUNT`	Requested amount exceeds available quantity
18	`EXCEEDS_MAX_AMOUNT`	Requested amount exceeds the per-item maximum
19	`DEPOSIT_IN_PROGRESS`	Another deposit is already processing for this user
1005	`RATE_LIMITED`	Client exceeded 10 deposits / 5 min (see Rate Limits)
1010	`NO_BOTS_AVAILABLE`	No Steam bots online; retry shortly
1011	`FLEET_DEGRADED`	Steam fleet degraded; retry shortly
1622	`INSTANT_DEPOSITS_DISABLED`	Instant deposits temporarily disabled (request without `isInstant: true`)