Deposit Preview

POST /api/v1/merchant/deposit-preview

Returns the prices we currently pay for the items in a user's Steam inventory — a lightweight quote surface for building a deposit cart. No records are created, nothing is reserved, and the call has no side effects, so it is safe to call as often as your UI needs.

Compared to Get Inventory, the preview responds faster and does not start the 5-minute pricing snapshot: it is a display quote. To credit a deposit at exactly these prices, create it with from_preview.

Access on request

This endpoint is enabled per merchant account. Until we enable it for yours, the call answers 403 and from_preview on Create Deposit is ignored. Ask your account manager to turn it on.

Request

Headers

Header	Required	Description
X-Api-Key	✅	Your merchant API key
Content-Type	✅	application/json

Body

Parameter	Type	Required	Description
game	string	✅	Game code: csgo, rust, dota2, tf2
partner	integer	unless items	Steam trade partner ID
token	string	unless items	Steam trade token
items	array	unless partner+token	Quote this exact list instead of the user's whole inventory. Up to 1000 entries. See Pricing a known cart
items[].asset_id	string	✅	Steam asset ID, returned unchanged as items[].id
items[].name	string	✅	Steam market_hash_name
items[].icon_url	string	✅	Steam icon_url

Pricing a known cart (items)

If you already know which items the user holds, send them in items instead of the trade link and we quote exactly that list.

{
  "game": "csgo",
  "items": [
    {
      "asset_id": "38029384123",
      "name": "AK-47 | Redline (Field-Tested)",
      "icon_url": "-9a81dlWLwJ2UUGcVs_nsVtzdOEdtWwKGZZLQHTxDZ7I56KU0Zwwo4NUX4oFJZEHLbXH5ApeO4YmlhxYQknCRvCo04DEVlxkKgpout6..."
    }
  ]
}

All three fields are required. asset_id is not used for pricing — we return it unchanged so you can match our prices back to your cart.

image_url, exterior, rarity and rarity_color are not returned in this mode — you get back id, name, price and, on phased items, phase. With a trade link the response is the full item card, same as Get Inventory.

Response

{
  "success": true,
  "message": "Deposit preview fetched successfully",
  "data": {
    "items": [
      {
        "id": "38029384123",
        "name": "AK-47 | Redline (Field-Tested)",
        "price": 12.45,
        "image_url": "https://community.cloudflare.steamstatic.com/economy/image/...",
        "exterior": "Field-Tested",
        "rarity": "Classified",
        "rarity_color": "#d32ce6"
      }
    ],
    "total": 47,
    "sum": 284.90,
    "game": "csgo",
    "max_items": 50
  }
}

Field	Type	Description
items	array	Items we currently accept, with the price paid for each. Items we do not accept right now are omitted
items[].id	string	Steam asset ID — pass these to Create Deposit as asset_ids
items[].phase	string	Doppler phase, present on phased items
total	integer	Number of quotable items
sum	number	Total value of all quotable items
max_items	integer	Per-deposit item limit — a deposit with more items is rejected with too_many_items

Price freshness

Preview prices are refreshed periodically (typically every ~10 minutes) and are stable in between. If the user takes long to decide, prices may update; a deposit created with from_preview verifies this for you and answers with the current prices when they have changed — see Deposit at Preview Prices.

Preview coverage can differ from Get Inventory

The preview is a fast display quote. The set of quotable items and their prices can occasionally differ from a Get Inventory response for the same account — the deposit itself always settles the final amount.