JavaLens

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About

63 semantic Java analysis tools via Eclipse JDT: navigation, refactoring, code intelligence.

Use this server

Add it to your MCP client. The catalogue lists this config verbatim from its source — it does not run, download, or vouch for the server. Review the command before you run it.

Transportstdio (runs a local command)

Env varsJAVA_PROJECT_PATH JAVALENS_TIMEOUT_SECONDS JAVALENS_LOG_LEVEL

Claude Code

claude mcp add --env JAVA_PROJECT_PATH= --env JAVALENS_TIMEOUT_SECONDS= --env JAVALENS_LOG_LEVEL= javalens -- npx javalens-mcp

Cursor

Add to Cursor

If the button doesn't open Cursor, use the JSON below — Cursor accepts the same mcpServers config.

VS Code

code --add-mcp '{"name":"javalens","command":"npx","args":["javalens-mcp"],"env":{"JAVA_PROJECT_PATH":"","JAVALENS_TIMEOUT_SECONDS":"","JAVALENS_LOG_LEVEL":""}}'

JSON

{
  "mcpServers": {
    "javalens": {
      "command": "npx",
      "args": [
        "javalens-mcp"
      ],
      "env": {
        "JAVA_PROJECT_PATH": "",
        "JAVALENS_TIMEOUT_SECONDS": "",
        "JAVALENS_LOG_LEVEL": ""
      }
    }
  }
}

Environment variables are listed by name only — fill in your own values. Entries never carry secrets.