Mup runs on your own machine — the client starts it, so there is no endpoint to ping. 59 installs a week from npm. Last commit 5 Sep 2026.
MCP server that turns HTML MUP panels into interactive UI tools for LLMs.
We read the source, 9 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.
const filePath = path.join(dir, filename);
Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.
if (mode === 'display') preview.innerHTML = marked.parse(editor.value);
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 mup -- npx -y mup-mcp-server
{
"mcpServers": {
"mup": {
"args": [
"-y",
"mup-mcp-server"
],
"command": "npx"
}
}
}
[mcp_servers.mup]
command = "npx"
args = ["-y", "mup-mcp-server"]
{
"mcpServers": {
"mup": {
"args": [
"-y",
"mup-mcp-server"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"mup": {
"args": [
"-y",
"mup-mcp-server"
],
"command": "npx"
}
}
}
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Answers built from our own checks of this server.