Maven Decoder

local MCP server

Installation

Terminal

claude mcp add maven-decoder-mcp -e MAVEN_REPOSITORY=... -e MAVEN_REMOTE_REPOS=... -e MAVEN_REMOTE_USERNAME=... -e MAVEN_REMOTE_PASSWORD=... -e MAVEN_OFFLINE=... -e MAVEN_AUTO_DOWNLOAD=... -e MAVEN_DECODER_CACHE_DIR=... -- npx -y maven-decoder-mcp

Run in your project folder. Add --scope user to use it everywhere.

Claude Desktop, Cursor & other clients

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "maven-decoder-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "maven-decoder-mcp"
      ],
      "env": {
        "MAVEN_REPOSITORY": "...",
        "MAVEN_REMOTE_REPOS": "...",
        "MAVEN_REMOTE_USERNAME": "...",
        "MAVEN_REMOTE_PASSWORD": "...",
        "MAVEN_OFFLINE": "...",
        "MAVEN_AUTO_DOWNLOAD": "...",
        "MAVEN_DECODER_CACHE_DIR": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

Summary

Lets AI agents read the real source of any Maven dependency, decompiled from ~/.m2 or Central.

Questions

Maven Decoder is a local MCP server distributed as the npm package maven-decoder-mcp.

Run: claude mcp add maven-decoder-mcp -e MAVEN_REPOSITORY=... -e MAVEN_REMOTE_REPOS=... -e MAVEN_REMOTE_USERNAME=... -e MAVEN_REMOTE_PASSWORD=... -e MAVEN_OFFLINE=... -e MAVEN_AUTO_DOWNLOAD=... -e MAVEN_DECODER_CACHE_DIR=... -- npx -y maven-decoder-mcp

Run: codex mcp add maven-decoder-mcp --env MAVEN_REPOSITORY=... --env MAVEN_REMOTE_REPOS=... --env MAVEN_REMOTE_USERNAME=... --env MAVEN_REMOTE_PASSWORD=... --env MAVEN_OFFLINE=... --env MAVEN_AUTO_DOWNLOAD=... --env MAVEN_DECODER_CACHE_DIR=... -- npx -y maven-decoder-mcp

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