Developer API

CS2 Marketindex API

Отслеживайте агрегированный CS2 рынок — текущее значение индекса, полную историю и side-by-side сравнение по каждому marketplace который мы покрываем.

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Endpoints

All endpoints return JSON, accept the same auth header, and degrade with a normalised error envelope.

GET /steam/api/market-index/cs2

GET /steam/api/market-index/cs2/history

GET /steam/api/market-index/cs2/compare

CS2 Marketindex API — quickstart

Same auth header as every other endpoint we ship. Get an API key from the dashboard and you're querying inside two minutes.

→ Single auth header, JSON response.
→ Rate limits scale with your plan tier.
→ Full schema in the API reference.

API Request

# curl with API key

curl "https://www.steamwebapi.com/steam/api/market-index/cs2?key=$KEY"

# PHP

$res = file_get_contents('https://www.steamwebapi.com/steam/api/market-index/cs2?key=' . $KEY);

$data = json_decode($res, true);

# Node.js

const r = await fetch(`https://www.steamwebapi.com/steam/api/market-index/cs2?key=${KEY}`);

const data = await r.json();

About this API

Marketindex API вычисляет взвешенный индекс по CS2 экономике: одно число, которое отражает растёт ли рынок или падает.

FAQ

How is the index calculated?

Volume-weighted average of the top liquid CS2 items, rebalanced periodically. Snapshot-based so historical comparisons stay consistent.

Can I see history?

Yes — /steam/api/market-index/cs2/history returns the index as a time series.

Can I compare marketplaces?

Yes — /steam/api/market-index/cs2/compare returns the per-marketplace index side by side.

Start building with the CS2 Marketindex API

One key, every Steam endpoint.

Get API access Full API reference