How to Compare CS2 Skin Prices Across Marketplaces

Cross-market comparison is the core workflow for CS2 arbitrage, inventory valuation and deal hunting. CSPriceAPI covers 13 marketplaces — YouPin, BUFF163, Skinport, SkinBaron, CSFloat, Market.CSGO, C5Game, EcoSteam, LIS-SKINS, DMarket, ShadowPay, Waxpeer and Steam — and returns the same JSON shape for every market except Steam, which has its own endpoint (GET /v1/steam).

Option A — REST API (for bots & dashboards)

Fetch the listing markets in one call, then join on identity:

curl -s "https://api.cspriceapi.com/v1/prices/latest?markets=youpin,buff163,skinport,csfloat" \
  -H "x-api-key: YOUR_API_KEY"

Matching rules:

Same market_hash_name (exact string, including wear tier).
Same phase for Doppler / Gamma Doppler items — never compare Ruby against Phase 2.
Convert currencies before ROI: CNY (YouPin, BUFF), EUR (Skinport, SkinBaron), USD (CSFloat, Market.CSGO).

ROI example: buy on Skinport at €100, reference YouPin at ¥820 → convert ¥820 to EUR, subtract Skinport seller fee, compare net.

Option B — Price Comparison tool (no code)

Price Comparison ranks skins by ROI between any two markets. Inputs: from-market, to-market, min price, min listing count, fee %, blacklist keywords. Output: ranked list with Doppler-aware matching.

Option C — Market Hub Price Comparison

Price Comparison lists cross-market gaps ranked by profit or ROI, with marketplace fees applied — when the same skin is materially cheaper on market A than B.

Option D — Chrome extension

The CSPriceAPI extension overlays comparison prices directly on Skinport, CSFloat, Waxpeer and seven other marketplaces while you browse.

API endpoints for comparison workflows

Endpoint	Use case
`GET /v1/prices/latest`	Full snapshot across markets
`GET /v1/prices/search`	Single-item lookup by name
`GET /v1/prices/youpin/buyorder`	YouPin bid side for spread analysis
`GET /v2/prices/float-ranged`	YouPin float-bucket pricing for wear-tier arb

See data coverage for refresh rates and field details.