How do I install Mat?

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

What credentials does Mat need?

Mat requires the following credentials or environment variables: MAT_HOME, JAVA_PATH, MAT_XMX_MB. You can find setup instructions on the server detail page.

What AI apps work with Mat?

Mat 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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Mat

by Codelipenghui

Developer ToolsModerate6.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

Headless Eclipse MAT MCP server for Java heap dump analysis

About

Headless Eclipse MAT MCP server for Java heap dump analysis

What You'll Need

Set these up before or after installing:

Path to Eclipse MAT installation directory (e.g., /Applications/MemoryAnalyzer.app/Contents/Eclipse)Optional

Environment variable: MAT_HOME

Path to Java executable (default: java)Optional

Environment variable: JAVA_PATH

Maximum JVM heap size in MB for MAT (default: 4096)Optional

Environment variable: MAT_XMX_MB

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-codelipenghui-mcp-mat": {
      "env": {
        "MAT_HOME": "your-mat-home-here",
        "JAVA_PATH": "your-java-path-here",
        "MAT_XMX_MB": "your-mat-xmx-mb-here"
      },
      "args": [
        "-y",
        "mcp-mat"
      ],
      "command": "npx"
    }
  }
}

Security Report

6.2

Moderate6.2Moderate Risk

This Eclipse MAT MCP server demonstrates good security practices with proper input validation, path sanitization, and secure execution patterns. The server appropriately executes Java processes for heap dump analysis with bounded parameters and safe file handling. Only minor code quality and permission scope findings were identified. Supply chain analysis found 2 known vulnerabilities in dependencies (0 critical, 2 high severity). Package verification found 1 issue.

Scanned 7 files · 7 findings

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.

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.

env_vars

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

process_spawn

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

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