Steam Tracker API

Frontend integration guide · Production https://steam.datagame.dev

Tracked games

Live list: GET /api/games

Endpoints

Health

{ "status": "ok", "timestamp": 1785886604 }

List games cache 60s

Each item includes catalog summary fields + latest: { captured_at, player_count } (or null).

Game detail recommended

{
  "game": { "id": "3065800", "name": "Marathon", "header_image": "...", "screenshots": [...], "store_url": "..." },
  "latest": { "captured_at": 1785886470, "player_count": 4033 },
  "prices": [
    { "region": "us", "currency": "USD", "final_price": 3999, "formatted_final": "$39.99", "discount_percent": 0 }
  ]
}

final_price is minor units (cents). Prefer formatted_final for display. Regions: us, gb, de.

CCU history (charts) cache 5m

from / to optional Unix seconds.

{
  "app_id": "3065800",
  "history": [
    { "captured_at": 1772135136, "player_count": 142237 },
    { "captured_at": 1785886470, "player_count": 4033 }
  ]
}

Price history sparse

Written on catalog refresh (~weekly), not every 15 minutes.

Copy-paste helpers

const API_BASE = "https://steam.datagame.dev";

async function getSteamStats(appId) {
  const res = await fetch(`${API_BASE}/api/games/${appId}`);
  if (res.status === 404) return null;
  if (!res.ok) throw new Error("Steam API failed");
  const data = await res.json();
  return {
    players: data.latest?.player_count ?? 0,
    lastUpdated: data.latest?.captured_at ?? null,
    headerImage: data.game.header_image,
    prices: data.prices ?? [],
    storeUrl: data.game.store_url,
  };
}

async function getCcuHistory(appId, days = 7) {
  const from = Math.floor(Date.now() / 1000) - days * 24 * 60 * 60;
  const { history } = await fetch(
    `${API_BASE}/api/games/${appId}/history?from=${from}`
  ).then((r) => r.json());
  return history.map((p) => ({
    x: new Date(p.captured_at * 1000),
    y: p.player_count,
  }));
}

Errors

{ "error": "Game not found" }

More detail

Full Markdown (TypeScript types, field notes): docs/frontend-api.md in the tool-steamtracker repo.

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