unreal-mcp-ue4 runs on your own machine — the client starts it, so there is no endpoint to ping. 126 installs a week from npm. Last commit 26 May 2026.
UE4.27 MCP server for controlling Unreal Editor sessions over Python Remote Execution.
We read the source, 22 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
return fs.readFileSync(path.join(__dirname, filePath), "utf8")
return new Function(...Object.keys(vars), `return \`${tmpl}\`;`)(...Object.values(vars))
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add unreal-mcp-ue4 -- npx -y unreal-mcp-ue4
{
"mcpServers": {
"unreal-mcp-ue4": {
"args": [
"-y",
"unreal-mcp-ue4"
],
"command": "npx"
}
}
}
[mcp_servers.unreal-mcp-ue4]
command = "npx"
args = ["-y", "unreal-mcp-ue4"]
{
"mcpServers": {
"unreal-mcp-ue4": {
"args": [
"-y",
"unreal-mcp-ue4"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"unreal-mcp-ue4": {
"args": [
"-y",
"unreal-mcp-ue4"
],
"command": "npx"
}
}
}
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Answers built from our own checks of this server.