Steam Store API

Free Steam Store API with no key: featured games, store categories, app details, prices and discounts. Undocumented but widely used. Tested example.

No API key requiredHTTPSFree tier

Endpoint tested and returned HTTP 200 on 2026-08-20

What is the Steam Store API?

The Steam Store API is a free, key-free set of endpoints exposing the Steam storefront — featured games, category listings, app details, pricing and current discounts. It is undocumented but publicly accessible and widely used.

Valve has never officially documented these storefront endpoints, but they are public, stable in practice, and used by a great many price trackers and game discovery sites.

Two quirks catch people out. Prices are returned in the smallest currency unit — 1999 means $19.99 — and the appdetails endpoint wraps its response in an object keyed by the app id, with a `success` boolean you must check before reading data.

Quick facts

Base URL: https://store.steampowered.com/api
Authentication: No API key for storefront endpoints. The separate Steam Web API for user data requires a key.
Rate limit: Roughly 200 requests per 5 minutes per IP, unofficially.
Pricing: Free.
CORS: Not enabled — call it from your server
Official docs: Read the docs

How to use the Steam Store API

Every request below was executed against the live API on 2026-08-20, and the response shown is the real body it returned — not an illustration.

1. Fetch featured Steam store categories

GET https://store.steampowered.com/api/featuredcategories

curl

curl 'https://store.steampowered.com/api/featuredcategories'

JavaScript (fetch)

const res = await fetch("https://store.steampowered.com/api/featuredcategories");
if (!res.ok) throw new Error(`Request failed: ${res.status}`);
const data = await res.json();
console.log(data);

Python (requests)

import requests

res = requests.get("https://store.steampowered.com/api/featuredcategories", timeout=20)
res.raise_for_status()
print(res.json())

Response — HTTP 200 (truncated)

{
  "0": {
    "id": "cat_spotlight",
    "name": "Spotlights",
    "items": [
      {
        "name": "MIDWEEK DEAL",
        "header_image": "https://shared.akamai.steamstatic.com/store_item_assets/steam/spotlights/ddee97d8b10a01365d7a5171/8be87ae3167023d698eb4fc86db7fbdd6b5e61f5/vertical_capsule_english.jpg?t=1786741468",
        "body": "Offer ends %1$s.",
        "url": "https://store.steampowered.com/sale/UkrainianGamesFestival2026"
      }
    ]
  },
  "1": {
    "id": "cat_spotlight",
    "name": "Spotlights",
    "items": [
      {
        "name": "MIDWEEK DEAL",
        "header_image": "https://shared.akamai.steamstatic.com/store_item_assets/steam/spotlights/b41636b73d6e372dc05c4fa2/a538222528202d5bb5904b1c9960d3f12aa85cbc/vertical_capsule_english.jpg?t=1786999201",
        "body": "Offer ends %1$s.",
        "url": "https://store.steampowered.com/app/1672970"
      }
    ]
  },
  "2": {
    "id": "cat_spotlight",
    "name": "Spotlights",
    "items": [
      {
        "name": "FRANCHISE SALE",
        "header_image": "https://shared.akamai.steamstatic.com/store_item_assets/steam/spotlights/6c18ba696d274e4431ebf741/088ed9ed77553b1fe7dd6e63922ff7aa65ed3c26/vertical_capsule_english.jpg?t=1786392299",
        "body": "Offer ends %1$s.",
        "url": "https://store.steampowered.com/sale/MafiaFranchiseSale26"
      }
    ]
  },
  "3": {
    "id": "cat_spotlight",
    "name": "Spotlights",
    "items": [
      {
        "name": "FRANCHISE SALE",
        "header_image": "https://shared.akamai.steamstatic.com/store_item_assets/steam/spotlights/38d4b6efa1be437d36b24848/

Parameters

Parameter	Type	Required	Description
`featuredcategories`	path	Optional	Featured and specials categories. `featuredcategories`
`appdetails?appids=`	integer	Optional	Full details for one or more apps. `appdetails?appids=730`
`cc`	string	Optional	Country code, which changes currency and pricing. `us`
`l`	string	Optional	Language for descriptions. `english`

Response fields

<category>.id / namestring: Category identifier and display name.
<category>.itemsarray: Games in that category.
items[].namestring: Game title.
items[].final_priceinteger: Price in the smallest currency unit — 1999 means $19.99.
items[].discount_percentinteger: Current discount percentage.
items[].header_imagestring: Store header image URL.
(appdetails) successboolean: Whether data exists for that app id — check it first.

What you can build with the Steam Store API

Build a game price tracker or deal alert service
Display current Steam sales on a gaming site
Look up game metadata, screenshots and requirements
Compare regional pricing using the cc parameter

Common errors and how to fix them

Prices look 100x too large

Prices are in the smallest currency unit.

Fix: Divide by 100 — final_price of 1999 is $19.99.

success: false on appdetails

The app id does not exist or is region-restricted.

Fix: Always check the success boolean before reading the data object.

429

Unofficial rate limit hit.

Fix: Roughly 200 requests per 5 minutes; cache aggressively since these endpoints are undocumented and unsupported.

Steam Store API — frequently asked questions

Is there an official Steam store API?

Not officially documented. These storefront endpoints are public and widely used, but Valve does not document or support them, so treat them as best-effort.

Why are the prices so large?

They are in the smallest currency unit. A final_price of 1999 means $19.99 — divide by 100.

Can I get prices in another currency?

Yes, pass the `cc` country code parameter, which changes both the currency and the regional pricing.

Do I need an API key?

Not for storefront data. The separate Steam Web API, which covers user profiles and game libraries, does require a key.

Tools that pair with this API

JSON Formatter

Format, beautify and minify JSON online with 2-space, 4-space or tab indentation. Sort keys alphabetically and catch syntax errors instantly — free and private.

Discount Calculator

Work out the final sale price and money saved from any discount percentage, including stacked double discounts like an extra 10% off an already reduced price.

Percentage Calculator

Calculate what X% of a number is, what percent one number is of another, and percentage increase or decrease between two values — instantly and free.

Steam Store is an independent third-party service and is not affiliated with ByteTools or ByteVancer. Details on this page were verified on 2026-08-20; always check the official documentation before relying on this API in production, as terms and limits can change.