How do I install Plumb?

Plumb is a local plugin. Install it using npm package: plumb-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Plumb safe to use?

Plumb was flagged by MCP Marketplace's security scan, scoring 4.2/10 (high risk). It has 3 high or critical findings to review. Review the security report on this page carefully before installing it.

What credentials does Plumb need?

Plumb requires the following credentials or environment variables: FIGMA_TOKEN, PLUMB_SESSION_NAME. You can find setup instructions on the server detail page.

What AI apps work with Plumb?

Plumb uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Plumb MCP Server

by Tathagat22

Developer ToolsUse Caution4.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

Figma → code MCP: no rate limits, no metered quotas, verification loop. Works on every Figma plan.

About

Figma → code MCP: no rate limits, no metered quotas, verification loop. Works on every Figma plan.

Security Report

4.2

Use Caution4.2High Risk

Plumb MCP is a well-architected Figma-to-code tool with sound security practices for a developer tool. It uses loopback-only WebSocket communication, requires explicit plugin pairing, and has no telemetry. No critical vulnerabilities detected. Minor findings relate to dependency management best practices and standard code quality considerations that do not meaningfully impact security for this category of server. Supply chain analysis found 9 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

4 files analyzed · 14 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

process_spawn

Check that this permission is expected for this type of plugin.

What You'll Need

Set these up before or after installing:

Figma personal access token (read-only). Only needed for the REST path — not required when the Plumb plugin is paired in Figma desktop. Create one at figma.com → Settings → Security → Personal access tokens.Required

Environment variable: FIGMA_TOKEN

Optional label shown in the Plumb Figma plugin when multiple plumb-mcp servers are paired with the same plugin (multi-agent connect). Defaults to the basename of the current working directory.Optional

Environment variable: PLUMB_SESSION_NAME

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-tathagat22-plumb-mcp": {
      "env": {
        "FIGMA_TOKEN": "your-figma-token-here",
        "PLUMB_SESSION_NAME": "your-plumb-session-name-here"
      },
      "args": [
        "-y",
        "plumb-mcp"
      ],
      "command": "npx"
    }
  }
}

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Plumb MCP Server

About

Security Report

Findings (14)Action required

Permissions Required

What You'll Need

How to Install

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