JVM Source Lens

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About

Gradle-accurate JVM classpath; fetch Java source, signatures, and class structure for agents.

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 varsJVMSRC_ALLOWED_ROOTS JVMSRC_CACHE_ROOT JVMSRC_LOG_DIR JVMSRC_MAX_SOURCE_OUTPUT_CHARS JVMSRC_GRADLE_TIMEOUT_MS JVMSRC_CFR_PATH

Claude Code

claude mcp add --env JVMSRC_ALLOWED_ROOTS= --env JVMSRC_CACHE_ROOT= --env JVMSRC_LOG_DIR= --env JVMSRC_MAX_SOURCE_OUTPUT_CHARS= --env JVMSRC_GRADLE_TIMEOUT_MS= --env JVMSRC_CFR_PATH= jvmsrc -- npx jvmsrc

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":"jvmsrc","command":"npx","args":["jvmsrc"],"env":{"JVMSRC_ALLOWED_ROOTS":"","JVMSRC_CACHE_ROOT":"","JVMSRC_LOG_DIR":"","JVMSRC_MAX_SOURCE_OUTPUT_CHARS":"","JVMSRC_GRADLE_TIMEOUT_MS":"","JVMSRC_CFR_PATH":""}}'

JSON

{
  "mcpServers": {
    "jvmsrc": {
      "command": "npx",
      "args": [
        "jvmsrc"
      ],
      "env": {
        "JVMSRC_ALLOWED_ROOTS": "",
        "JVMSRC_CACHE_ROOT": "",
        "JVMSRC_LOG_DIR": "",
        "JVMSRC_MAX_SOURCE_OUTPUT_CHARS": "",
        "JVMSRC_GRADLE_TIMEOUT_MS": "",
        "JVMSRC_CFR_PATH": ""
      }
    }
  }
}

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