SuperDuperBundle Game Price API

Free API, clients and MCP server for live PC game key prices. Look up a game by name, Steam app ID or Steam store URL and get the lowest listed price across the official stores and key stores SuperDuperBundle compares, in US dollars, with the store, when it was checked and a link to the full comparison.

• Documentation: https://superduperbundle.com/tools/api/
• OpenAPI 3.1: openapi.json (live copy: https://superduperbundle.com/api/v1/openapi.json)
• Postman: public collection
• No key needed. Free keys raise the limits.

Quick start

curl "https://superduperbundle.com/api/v1/lookup/?q=elden+ring&client=my-app"
curl "https://superduperbundle.com/api/v1/lookup/?steam_ids=1245620,1091500,292030"

import { GamePrices } from 'superduperbundle';
const api = new GamePrices({ client: 'my-app' });
const game = await api.bySteamId(1245620);
console.log(game.name, game.lowest?.price, game.lowest?.store_name, game.url);

from superduperbundle import GamePrices
game = GamePrices(client="my-app").by_steam_id(1245620)
print(game["name"], game["lowest"]["price"], game["lowest"]["store_name"], game["url"])

MCP (Claude Desktop, Cursor, VS Code and other MCP clients)

{
  "mcpServers": {
    "superduperbundle": { "command": "npx", "args": ["-y", "@superduperbundle/mcp-server"] }
  }
}

Or connect by URL, nothing to install (Claude, ChatGPT, Cursor and other clients that support remote MCP servers):

https://superduperbundle.com/mcp

Tools: lookup_game_price (name, Steam app ID or Steam URL) and compare_game_prices (up to 50 Steam app IDs).

What you get

Each game: state (price, free, unreleased, not_on_sale), lowest (cheapest PC key of any kind, drm says where it activates), lowest_steam_key, Steam's list_price, discount_pct (only when real), store_count, up to 10 offers with checked_at, and url: the compare page with every offer. Prices are listed prices as each store shows them; stores set fees and the final total at checkout. SuperDuperBundle compares prices; it does not sell keys.

Limits

Uncached games per 10 minutes: 600 per address without a key, 2,500 with a free key, 10,000 for partner keys (a public page of your project links to SuperDuperBundle). Answers are cached for 15 minutes; every answer carries X-RateLimit-Limit, X-RateLimit-Remaining and X-RateLimit-Reset.

Licence and data terms

• The code in this repository (clients, MCP server, examples) is MIT licensed: see LICENSE.
• The price data the API returns is not covered by the MIT licence. It is provided under the API terms: free to use in apps, sites, bots and extensions; whenever you display it, show a visible link to SuperDuperBundle (link each price to the game's url); do not resell it or mirror it as a price database.