Developer API

CS2 Collection API

Chaque case CS2, capsule et collection — avec leurs drop pools, distribution rareté et prix en direct — via un endpoint REST.

Start building for free API Reference

Endpoints

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

GET /steam/api/cs/collections

GET /steam/api/cs/collection/{slug}

GET /steam/api/cs/containers

CS2 Collection 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/cs/collections?key=$KEY"

# PHP

$res = file_get_contents('https://www.steamwebapi.com/steam/api/cs/collections?key=' . $KEY);

$data = json_decode($res, true);

# Node.js

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

const data = await r.json();

About this API

La Collection API vous donne la liste complète de set pour n'importe quel container CS2, capsule ou collection : quels items sont à l'intérieur, leur rareté, poids de drop et prix actuels du marché.

FAQ

Are containers and collections both included?

Yes — both. Containers (cases/capsules) and collections (map drop pools) share the same DTO.

Are prices live?

Yes — each item in a collection is joined with its current Steam price.

How do I list every collection?

GET /steam/api/cs/collections. For a single one by slug, GET /steam/api/cs/collection/{slug}.

Start building with the CS2 Collection API

One key, every Steam endpoint.

Get API access Full API reference