Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@DesyncedMCP search the Lua API for how to create a custom item and then show me the current game log"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
MCP server for Desynced mod development. Gives an AI assistant (Claude Code or any MCP client) direct access to the game's Lua API reference, base-game source, live game logs and installed mods.
Tool | Purpose |
| Search the official Lua API reference (vendored in |
| Regex search over base game ( |
| Tail a game log file if one exists (see |
| List mods the game will load vs. mods in the workspace |
| Read any workspace source file by relative path with line range |
-moddev)Tool | Purpose |
| Live snapshot: tick, player faction, entity count, active mod settings |
| Output captured live (print/errors/BOOT); survives crashes up to the moment of death |
| Execute arbitrary Lua inside the running game and return the result |
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The link speaks the satoren lrdb protocol (newline-delimited JSON-RPC, no
init) against 127.0.0.1:21110. The game's debug server takes commands
from a single client: while this server is linked, the in-game log console
goes silent (output is redirected to the link) and VS Code cannot attach.
The VM answers eval only while executing Lua, so an idle menu can time out.
Related MCP server: Roblox MCP Server
game_eval runs in the game's UI Lua VM, where simulation mutations are
blocked. Controlling the game (move, deploy, mine, construct...) requires
the companion mod Desynced MCP Bridge on the Steam Workshop,
which exposes
FactionAction.MCPSimCmd into the simulation context. This server works
without it for read-only tools (logs, status, eval reads, hot reload).
npm install
npm test # smoke testRegister in Claude Code (project scope):
claude mcp add desynced --scope project -- node <path-to>/DesyncedMCP/server.jsVar | Default |
| current working directory — point it at the folder holding your mod sources |
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The game ships its entire base game as main.zip inside the mods folder
and always loads it zipped — it is never extracted in a normal install. To
let search_game_source and read_game_file see the base-game Lua, unzip
main.zip into a main/ folder inside your workspace with any zip tool.
This is purely a development convenience; the game neither needs nor uses
the extracted copy.
The server itself runs outside the game — nothing to install in the game. For logs to exist, launch Desynced with these Steam launch options:
-moddev -log-moddev enables the mod developer mode (hot reload with F7, strict data checks, log console); -log writes the log file this server reads.
deploy_mod: copy a workspace mod into the game mods dir (replacing the manual copy step)
Live bridge over the lrdb debug protocol (localhost:21110 in -moddev): eval Lua in the running game, inspect entities/factions, trigger Debug.Reload()
Workshop publishing via DesyncedModUploader
Unclaimed servers have limited discoverability.
If you are the server author, to access and configure the admin panel.
Live browser debugging for AI assistants — DOM, console, network via MCP.
An MCP server that gives your AI access to the source code and docs of all public github repos
Give your AI agent a persistent map of your project's structure, dependencies, and bugs.
We provide all the information about MCP servers via our MCP API.
curl -X GET 'https://glama.ai/api/mcp/v1/servers/angeldeejay/DesyncedMCP'
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