Prefab MCP Server

by prefabapp Your server? Claim it

local only

Prefab runs on your own machine — the client starts it, so there is no endpoint to ping. 16 installs a week from npm. Last commit 25 Aug 2026.

List, create and deploy your Prefab project templates from any MCP agent.

Installs per day peak 13 · avg 4 · +55% w/w

a month agotoday

Installs / week

npm · prefab-mcp

Stars

0 open issues

25 Aug 2026

Last commit

2 releases in 90 days

MIT

License

JavaScript

Nothing serious here today

Today is the operative word: we check Prefab every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

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 Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add prefab -- npx -y prefab-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "prefab": {
      "args": [
        "-y",
        "prefab-mcp"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.prefab]
command = "npx"
args = ["-y", "prefab-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "prefab": {
      "args": [
        "-y",
        "prefab-mcp"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "prefab": {
      "args": [
        "-y",
        "prefab-mcp"
      ],
      "command": "npx"
    }
  }
}

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Prefab — questions

Answers built from our own checks of this server.

Why is there no uptime for Prefab?

Prefab runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package prefab-mcp was installed 16 times last week.

How do I connect Prefab?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls prefab-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Prefab?

The npm package prefab-mcp was installed 16 times in the last week. Week over week that is +55%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Prefab open source?

Yes — it is published under the MIT licence, written in JavaScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.