Overview
This reference describes 30 operations, all served from https://steamcommunity.com: 27 under /market plus three Steam Guard confirmation routes under /mobileconf that the sell path depends on.
Scope
Included: the /market/* operations covering search and discovery, listing pages and order
books, pricing, Market account state, and buy-order and sell-listing mutations.
Excluded:
- inventory, economy, and asset-metadata services;
- trade offers and trade history;
- profiles, friends, notifications, parental controls, and client telemetry;
- CDN JavaScript, CSS, fonts, and unrelated images.
Response encodings
| Encoding | Endpoints |
|---|---|
| JSON | Structured search, listings, pricing, order depth, account state, and mutations. |
| HTML | Market pages and legacy render fragments. |
Stability
No endpoint in this reference is guaranteed by Valve. Treat field presence, sorting values, filter names, and authentication behavior as versionless implementation details. Cache reads, limit concurrency, and handle null, redirects, HTML responses, and schema drift.