xby-chess

Anyone who has parsed FEN strings in a chat conversation knows the pain: "rnbqkbnr/pppppppp/8/..." is compact but barely human-readable, and a single misplaced piece can throw off the entire analysis. xby-chess wraps FEN validation and ASCII board rendering into a lightweight MCP server so your AI assistant can print a text-based chessboard that shows exactly who sits on which square at a glance. It also ships a set_xby_apikey command that lets you set and persist your API key right from the chat—surviving session restarts—so you skip the manual config dance every time. Whether you are reviewing a game, double-checking the legality of a position an engine proposed, or walking a student through an opening layout, this plugin turns purely textual chess discussions into a readable, board-included experience in any MCP-compatible assistant.