List item listings
Auth context: sub-user — On-Behalf-Of required. Rate limit: 200/min.
Live cross-marketplace offers for an item, dispatched to marketplace
workers. market filters by marketplace index (0 = all, 3 = C5Game,
4 = EcoSteam, 6 = YouPin; 1 = Steam is sell-only and rejected here).
delivery filters by delivery mode (instant = auto-deliver only); omit
for both. For Doppler knives, optionally filter by phase. For
float-relevant items, pass wearMin + wearMax together (both required
if either is sent).
Listing ids are opaque and ephemeral; the market index is encoded inside them. Ids minted before the v0.4.x market-index remap are invalidated — always re-read listings before buying rather than caching ids.
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 - 128Path Parameters
1Query Parameters
x >= 11 <= x <= 100Marketplace index — 0 all, 3 C5Game, 4 EcoSteam, 6 YouPin (1 Steam is sell-only, rejected).
x >= 0standard, instant Phase 1, Phase 2, Phase 3, Phase 4, Ruby, Sapphire, Black Pearl, Emerald 0 <= x <= 10 <= x <= 1