What problem does it solve? Finding correct Steam Web API endpoints, their parameters, and authentication requirements is time-consuming because documentation is scattered across interfaces like ISteamUserStats, IPlayerService, and ISteamRemoteStorage. This Skill locates the right endpoint, explains its parameters and auth model, and provides working call examples. ## Core Features & Use Cases - Endpoint Discovery: Identifies the correct Steam API interface and method from a natural-language query, with a quick-reference table of common endpoints. - Documentation Retrieval: Fetches official docs from partner.steamgames.com and explains URL patterns, HTTP methods, parameters, and response fields. - Authentication Guidance: Clarifies which endpoints need no key, a Steam Web API key, or a publisher key with IP allowlisting. - MCP Tool Mapping: Maps requests to 25+ Steam MCP server tools when available, preferring them over raw curl calls. - Use Case: A developer asks how to fetch a player's achievement unlock status; the Skill identifies ISteamUserStats/GetPlayerAchievements, lists required parameters (appid, key, steamid), and provides a curl example. ## Quick Start Ask how to call a specific Steam API endpoint, such as "How do I get global achievement percentages for appid 440 using the Steam Web API?"