Model Context Protocol moderate risk

Jvm

A lightweight, dependency-free server for monitoring and diagnosing JVM applications using native JDK tools, accessible via MCP for AI agent integration.

Connections & Capabilities

Connects To

GitHub

Capabilities

readwriteexecadmin

Quickstart

Install

pip install jvm-mcp-server

Config

{
  "mcpServers": {
    "jvm-mcp-server": {
      "command": "uv",
      "args": [
        "--directory",
        "/path/to/jvm-mcp-server",
        "run",
        "--env-file",
        "/path/to/jvm-mcp-server/.env",
        "jvm-mcp-server"
      ]
    }
  }
}

Exposed MCP Tools (15)

safe

list_java_processes

Lists all running Java processes on the system.

Read-only operation; no side effects.

safe

get_thread_info

Retrieves information about threads in a specific Java process.

Read-only operation; no side effects.

safe

get_jvm_info

Gets basic information about the JVM.

Read-only operation; no side effects.

safe

get_memory_info

Retrieves memory usage information for a Java process.

Read-only operation; no side effects.

safe

get_stack_trace

Gets the stack trace of a thread in a Java process.

Read-only operation; no side effects.

safe

get_class_info

Retrieves detailed information about a specific Java class.

Read-only operation; no side effects.

safe

get_stack_trace_by_method

Gets the method call path for a specific method.

Read-only operation; no side effects.

safe

decompile_class

Decompiles the source code of a Java class.

Read-only operation; no side effects.

safe

search_method

Searches for methods within Java classes.

Read-only operation; no side effects.

moderate

watch_method

Monitors invocations of a specific method.

Could potentially impact performance due to monitoring overhead.

safe

get_logger_info

Gets information about the logger configuration.

Read-only operation; no side effects.

moderate

set_logger_level

Sets the logging level for a specific logger.

Modifying logger levels can impact application behavior and log volume.

safe

get_dashboard

Retrieves a system resource dashboard.

Read-only operation; no side effects.

high

get_jcmd_output

Executes a JDK jcmd command.

jcmd commands can potentially modify JVM state or trigger actions with side effects.

safe

get_jstat_output

Executes a JDK jstat command.

jstat commands are generally read-only and provide JVM statistics.

Safety Assessment

This server provides valuable JVM monitoring capabilities, but the ability to execute commands on the target system introduces risks. It is relatively safe for read-only monitoring, but caution is advised when using tools that modify system settings or execute commands, especially in remote environments. Secure SSH configuration is crucial for remote monitoring.

Uses only JDK certified tools and commands
Non-intrusive monitoring without application modification
Supports remote monitoring via SSH, adding a layer of network security
Relies on standard JDK tools, reducing the risk of unknown vulnerabilities
Provides both local and remote JVM monitoring capabilities

Executes commands on the target system, potentially leading to resource exhaustion or denial-of-service
Remote monitoring requires SSH access, which can be a security risk if not properly configured
Some tools allow setting logger levels, which could be abused to flood logs or suppress important messages
Lack of built-in sandboxing for command execution
Environment variable based authentication