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Jvm

Safety: 55/100

0.0(0)

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

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Overview

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

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.

Performance depends on the complexity of the executed commands and the size of the JVM being monitored. Commands like jmap can be resource-intensive.

The primary cost is the resource consumption on the target system when executing commands. Remote monitoring incurs network overhead.

CloudPython75 starsMIT

Connections & Capabilities

Connects To

GitHub

Capabilities

ReadWriteExecAdmin

Client Compatibility

Claude Desktop

full

Cursor

full

Windsurf

full

VS Code (Copilot)

full

Quickstart

Install

pip install jvm-mcp-server

Claude Desktop 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"
      ]
    }
  }
}

Environment Variables

ARTHAS_SSH_HOSTARTHAS_SSH_PORTARTHAS_SSH_PASSWORD

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.

Security

Auth Method

Environment Variable

Data Locality

cloud

Known Risks

!Unsecured SSH access can lead to unauthorized remote command execution.
!Lack of input validation in commands could lead to command injection vulnerabilities.
!Overly verbose logging (via logger level adjustments) can exhaust disk space.
!Executing resource-intensive commands (e.g., jmap) on production systems can impact performance.
!Reliance on environment variables for authentication exposes credentials if the environment is compromised.

Safety Score

moderate risk

Positive

+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

Risks

-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

Use Cases

Application Monitoring

-Real-time monitoring of JVM memory usage
-Thread analysis and deadlock detection
-Performance bottleneck identification

Troubleshooting

-Diagnosing application crashes and exceptions
-Analyzing heap dumps for memory leaks
-Identifying the root cause of performance issues

Security Auditing

-Identifying vulnerable dependencies
-Analyzing class structures for security flaws
-Monitoring method invocations for suspicious activity

Remote Diagnostics

-Troubleshooting issues on remote servers without direct access
-Collecting diagnostic information from production environments
-Monitoring JVM health across multiple servers

Who Is This For?

Best For

Java developers
System administrators
DevOps engineers
Security analysts
AI agents requiring JVM insights

Not Ideal For

Environments with strict security constraints that prohibit command execution
Applications where even minimal performance overhead is unacceptable
Users without sufficient knowledge of JVM internals and JDK tools

Autonomy & Execution

Default ModeConfigurable

Destructive Tools

Autonomy should be carefully configured, as some tools can modify JVM state or execute commands with side effects. There is no built-in sandboxing or rollback mechanism.

StatelessYes

Retry LogicNot documented

ConcurrencySingle-threaded

Production Tip

Monitor resource consumption when executing commands on production systems to avoid performance impacts.

FAQ

What JDK versions are supported?

JDK 8 and above are supported.

Does this server require any agents to be installed on the target JVM?

No, it uses native JDK tools and requires no agent installation.

How do I configure remote monitoring?

Set the SSH_HOST, SSH_PORT, SSH_USER, and SSH_PASSWORD or SSH_KEY environment variables.

What security measures should I take when using this server?

Secure SSH access, limit the tools available to the server, and monitor resource consumption.

Can I use this server to monitor multiple JVMs simultaneously?

You can run multiple instances of the server, each monitoring a different JVM.

How do I update the server to the latest version?

Use `uv pip install --upgrade jvm-mcp-server` or `pip install --upgrade jvm-mcp-server`.

What kind of performance impact can I expect on the monitored JVM?

The impact depends on the commands executed. Monitoring tools like jstat have minimal impact, while diagnostic tools like jmap can be resource-intensive.

Metrics

Discovered2/14/2026

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Saved By0 users

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