MCP server directory

Regression testing for MCP servers. Auto-discovers servers from Claude configs, checks capabilities, invokes tools, detects schema drift between versions, and recommends new servers based on your environment. Works as both a CLI and an MCP server.

Brazilian stock market data (B3, CVM, BCB) for AI assistants — stock prices, 27+ fundamentals, dividends, FIIs, and macro indicators (Selic, IPCA, CDI). Install: `pip install bolsai-mcp` or `uvx bolsai-mcp`.

**ISO 20022 FI-to-FI credit-transfer generation + validation** (`pacs.008` FI-to-FI Customer Credit Transfer, `pacs.004` Payment Return, `pacs.002` Status Report). 15 tools across message-type + scheme discovery, JSON Schema + rail-usage validation, validated XML generation, XSD validation, inbound parsing, the November 2026 structured-address cliff toolkit (classify/validate/repair/batch), and legacy SWIFT MT103 → pacs.008 conversion. Built on the [`pacs008`](https://github.com/sebastienrousseau/pacs008) library (100% branch coverage, Apache-2.0). Install `pip install pacs008-mcp`, run `pacs008-mcp`.

Deploy a single-file HTML game to a shareable multiplayer URL with rooms, state sync, and leaderboards. No backend or player accounts.

Solana + EVM liquidity-pool scores for AI agents: **Enter/Hold/Exit verdicts** and a composite **0–100 Wealthville Score**, plus a live, immutable, miss-inclusive track record. 4 read-only tools (pool score, top pools, track record, signals feed). In the official MCP Registry. `npx @wealthville/mcp-server`

Beckett — MCP for Godot: a zero-sidecar GDScript editor addon that serves MCP over Streamable HTTP from inside the Godot 4 editor (no Node/Python sidecar). Reflection over any class, validate-before-write GDScript, scene/script/resource authoring, and a runtime play-test loop (play, screenshot, input, assert). MIT.

MCP Server for [Arknights](https://www.arknights.global/), querying the [PRTS Wiki](https://prts.wiki) API and serving auto-synced operator archives and voice lines from game data. Designed for fan-creation (同人創作) AI agents. Python (stdio/Docker) and TypeScript (Streamable HTTP) implementations.

Native C# MCP server for Godot Engine — 53 tools across 5 pillars: Roslyn-enriched exception telemetry, scene tree inspection, C# symbol navigation, MSBuild orchestration, and GDScript analysis. .NET 10, TCP JSON-RPC bridge, 219 tests.

Remote-control Unity Editor from any AI IDE via file-based IPC — 62 tools across 13 categories, zero dependencies, supports Claude Code, Cursor, Copilot, Windsurf, Claude Desktop.

Roslyn-based MCP server with 22 semantic code intelligence tools for .NET. Type hierarchies, call graphs, DI registrations, diagnostics, code fixes, complexity metrics, and more. Sub-millisecond lookups via pre-built indexes.

Drive PSP games through [PPSSPP](https://www.ppsspp.org)'s built-in WebSocket debugger interface — no plugin needed. Memory r/w (u8/u16/u32/range/string), input (buttons + analog), pause/resume/step, screenshot, MIPS Allegrex registers, CPU execution breakpoints. The richest debugger surface in the family thanks to PPSSPP's native instrumentation.

Drive the [BizHawk](https://github.com/TASEmulators/BizHawk) multi-system emulator from any MCP client. Memory r/w across named domains, joypad input, frame-advance, screenshot, save/load state. One bridge unlocks NES, SNES, GB/GBC/GBA, Genesis, N64, PSX, Saturn, and more.

Memory inspection and savestate control for PCSX2 and other emulators speaking the [PINE](https://github.com/GovanifY/pine) protocol. Read/write 8/16/32/64-bit memory, save/load state slots, query game metadata. TCP on Windows, Unix sockets on Linux/macOS.

Drive the [mGBA](https://mgba.io) Game Boy Advance emulator from any MCP client: read/write GBA memory, inject button presses, take screenshots, save/load state, and step the emulator. Lua bridge inside mGBA + Node MCP server.

Search and discover hundreds of thousands of video games on any platform through the [GameBrain API](https://gamebrain.co/api).

Drive the [Dolphin](https://dolphin-emu.org) GameCube/Wii emulator from any MCP client: read/write PowerPC memory (MEM1/MEM2), GameCube + Wii Remote input (buttons, IR pointer, accelerometer, MotionPlus), reset, save/load state, and frame advance. Python bridge inside [Felk's scripting fork](https://github.com/Felk/dolphin) + Node MCP server.

Connect Claude to your Steam library. Query your games, playtime, recently played, and store metadata via natural language.

D&D 5e SRD reference and analysis with monster search, spell lookup, encounter building, and loadout analysis. 10 tools, 1198 entities embedded.

MCP server for MDMA (interactive Markdown applications with mounted components). Exposes the MDMA spec, authoring prompts, package metadata, and live docs to AI assistants. Tools: `get-spec`, `get-prompt`, `build-system-prompt`, `validate-prompt`, `list-packages`, `list-docs`, `get-doc`. Install: `npx @mobile-reality/mdma-mcp`.

MCP server providing AI assistants with access to Dota 2 statistics via OpenDota API. 20+ tools for player stats, hero data, and match analysis with natural language support.

MCP Server for Unity Editor and for a game made with Unity

MCP server for Godot 4.x with runtime control via injected UDP bridge: input simulation, screenshots, UI discovery, and live GDScript execution while the game is running.

Warhammer 40K, Combat Patrol, and Kill Team rules reference with unit datasheets, keyword definitions, phase sequences, and game flow. 6 tools, 3148 units embedded.

A MCP server playing chess against LLMs.

Provision and inspect leaderboards for [Scorezilla](https://scorezilla.dev). Six tools — including `bootstrap_leaderboard` which creates a game + board + keys and returns ready-to-paste SDK code in one call. Closed beta; request a token at scorezilla.dev/early-access.

One Piece TCG card search, deck analysis, cost curves, leader browsing, and counter strategy tools. 6 tools, 4,348 cards embedded.

Magic: The Gathering card search, rules lookup, deck analysis, price data, and Commander intelligence. 14 tools, Scryfall + Academy Ruins + Commander Spellbook data.

Control the Unity Editor from MCP hosts through a local Rust server and C# bridge, with one-click host setup and 86 Unity commands for scenes, GameObjects, prefabs, assets, scripts, console, tests, and build settings.

Familiar is in the official Foundry package directory. Search for it, or paste the manifest URL. Both use the same Install Module dialog and install the current release. 1. In Foundry, open Configuration then Add-on Modules. 2. Click Install Module. 3. Search "Familiar", then click Install. 4. Enable Familiar in your world, then paste your licence key and click Activate. If you would rather paste it in, the manifest URL installs the same release from the same dialog. 1. Paste the URL into the Manifest URL field at the bottom of the same dialog. 2. Click Install. 3. Enable Familiar in your world, then paste your licence key and click Activate.

6 tools · Auto-pilot NPC turns, combat

Drive the Unreal Engine 5.7 editor from any MCP client over a local TCP socket — 105 editor-automation tools (72 native C++ + 33 bridge-side). Native C++ plugin + thin Python bridge, ~50ms round-trips. 498 tests, MIT.

Living economy for AI agents — Conway's Game of Life physics, energy currency, marketplace. 4 tools: observe state, execute actions, benchmark reports, game rules. Auto-registers, no API key needed.

Manage [TrueTick](https://truetick.gg) Minecraft hosting servers from AI agents: create/start/stop servers, live TPS/MSPT metrics, RCON console, file access, backups, and Modrinth/CurseForge mods.

MCP server for [RomM](https://github.com/rommapp/romm) retro game library manager. 19 read-only tools for browsing platforms, searching ROMs, viewing metadata, managing collections, tracking saves, firmware, devices, and task monitoring. OAuth2 auth with automatic token refresh.

MCP server for [Pyxel](https://github.com/kitao/pyxel) retro game engine, enabling AI to run, capture screenshots, inspect sprites, and analyze audio of Pyxel games.