MMUI MCP (official)

Tested npm @mui/mcp 0.1.9 (MIT; repo mui/mui-x packages/mcp, 5,876 GitHub stars when checked). Stdio, 3 tools (useMuiDocs, fetchDocs, generateReactCode), no account. tools/list first showed 2 tools; useMuiDocs registers only after the docs catalog loads (3 tools about 8 s after start), so our first call failed with 'Tool useMuiDocs not found' and was rerun after waiting. Real calls: useMuiDocs for @mui/material returned the Material UI 9.5.0 docs index, and fetchDocs returned the React Button page.
Tool-call test (2026-11-11, direct MCP stdio client, no LLM): pass. 2 of 2 read calls passed (after waiting for the late-registered useMuiDocs tool), no key. Evidence: local test run, Nov 11, 2026.

Transport (tested 2026-11-11): stdio

Score 100/100 · Tools 3 · Token cost approx. 2,788 tokens · Compare · Last tested 2026-11-11 · Version tested 0.1.9 · Package @mui/mcp · Repo mui/mui-x

Summary: MUI MCP (official) completed an MCP handshake without credentials and exposed 3 tools.

Evidence summary

Handshake

pass

Tools listed

3

Context cost

approx. 2788 tokens, cl100k estimate (3 tools, measured 2026-11-11, version 0.1.9; an estimate) ranking · add up your servers' context cost

API key

No key needed for the tools we called

Tested

2026-11-11

Test results

Local-model readiness

Token cost (estimate): approx. 2788 tokens, cl100k estimate for 3 tools · about 34% of an 8k context. This is an estimate from our testing (counted with cl100k_base).

Small-model friendly (schema heuristic, not a model result): unknown.

What we tested and what we didn't

Methodology: how we test. A high score means it installs and responds, not that giving it access to your data carries no risk.

{
  "name": "@mui/mcp",
  "version": "0.1.9",
  "registry": "npm",
  "status": "working",
  "tested": "2026-11-11",
  "tools_count": 3,
  "deprecated": false,
  "archived": false,
  "tests": {
    "install": [
      "pass",
      20,
      "`npm install @mui/mcp` (Node 20, Linux) succeeded in 1s."
    ],
    "handshake": [
      "pass",
      30,
      "MCP `initialize` + `tools/list` over stdio succeeded with no credentials; 3 tools listed in 2.9s."
    ],
    "maintenance": [
      "pass",
      25,
      "Repo pushed 0 days before test; 5,876 GitHub stars."
    ],
    "docs": [
      "pass",
      15,
      "README over 3,000 chars; install instructions present; `mcpServers` config example present. Check of the package's own README (README shipped in npm package)."
    ],
    "license": [
      "pass",
      10,
      "MIT (OSI-approved)."
    ]
  }
}

Install

npx -y @mui/mcpCopy

Pin the version we tested

npx -y @mui/mcp@0.1.9Copy

tested 2026-11-11. Newer versions may differ and were not tested by us.

{
  "mcpServers": {
    "mui-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mui/mcp@0.1.9"
      ]
    }
  }
}

Tools listed

fetchDocs, generateReactCode, useMuiDocs

Tool history: captured Nov 11, 2026. All tool history.

Quick config

{
  "mcpServers": {
    "mui-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mui/mcp"
      ]
    }
  }
}

Add to config Opens the config generator with this server selected.

{
  "mcpServers": {
    "mui-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mui/mcp"
      ]
    }
  }
}

Related: Best dev MCP servers · Troubleshooting: Tool not found after start

FAQ

Is MUI MCP deprecated?

No. @mui/mcp was not deprecated or archived when we last tested it on 2026-11-11.

What replaces MUI MCP?

Nothing; MUI MCP (official) is not deprecated as of 2026-11-11.

Does MUI MCP need an API key?

No. It completed an MCP handshake with no credentials and listed 3 tools.

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