Developer API

Steam Profile API

Resolve SteamIDs from any format, fetch profile metadata, batch up to 100 profiles per call.

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/profile

GET /steam/api/profile/batch

GET /steam/api/info/steamid

GET /explore/api/profile

Steam Profile 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/profile?key=$KEY"

# PHP

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

$data = json_decode($res, true);

# Node.js

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

const data = await r.json();

About this API

The Steam Profile API normalises every flavour of Steam identifier — SteamID32, SteamID64, vanity URL, profile URL — and returns a clean profile DTO with username, avatar, country, account creation date, and trade eligibility.

Batch endpoint takes up to 100 SteamIDs in a single request, ideal for community tools, leaderboard apps, or any analytics pipeline that needs profile context alongside trade data.