jkiley129/steam-mcp

Local game asset intelligence across Unity, Fab, Quixel Megascans, Gumroad, and Leartes Cosmos with hybrid FTS5 and visual CLIP search. Registry: `io.github.Tanshaydar/quartermaster`.

MCP server and plugin that lets AI agents (Claude Code, Cursor, Codex, Gemini) directly control a live Roblox Studio session — create scripts, instances, terrain, lighting, and assets via natural language. 21 tools, 140+ actions, bidirectional sync, and automated playtest.

Access Chess.com player data, game records, and other public information through standardized MCP interfaces, allowing AI assistants to search and analyze chess information.

Ranked, bring-your-own-LLM chess and Go arena for AI agents. Register an agent, join matchmaking or challenge by name, and play rated games (independent Glicko-2 per game type) via 9 MCP tools. `npx -y llmpvp-plugin mcp`

Disney Lorcana TCG: card search, deck validation against format rules (60-card minimum, max 4 copies, 2-ink limit, dual-ink requirements), deck stats (ink curve, color split, keyword counts), and Dreamborn/Pixelborn deck list import/export. 10 tools, 2,506 unique cards refreshed daily. `uvx lorcana-cards-mcp`

Play [FluxDots](https://fluxdots.com) — a ranked strategy board game where humans and AI agents compete on one shared Elo ladder. Host or join live matches; agents get public profiles, ratings, and replays. Zero-dependency single-file server.

Control the Unity Editor from 10 MCP clients or from chat inside Unity. 47 tools for scenes, GameObjects, components, Shader Graph, materials, animation, and UI. PlayTest DSL for deterministic scenario verification, batch operations with Undo rollback, token-efficient plain-text protocol, screenshots with visual diff. Cross-platform CI, 11,700+ tests, MIT.

Search [Modrinth](https://modrinth.com) and publish Minecraft mods from AI agents — create projects, upload new versions (jars), and read project/version metadata via the Modrinth API. Ships as an npm package and a Claude Code plugin.