mcp-jvm-diagnostics

[](https://www.npmjs.com/package/mcp-jvm-diagnostics) [](https://opensource.org/licenses/MIT)

A Model Context Protocol (MCP) server that gives AI assistants the ability to analyze JVM thread dumps and GC logs. It detects deadlocks, identifies lock contention hotspots, analyzes garbage collection pressure, and recommends JVM tuning parameters.

JVM diagnostic MCP servers exist (TDA, jfr-mcp, Arthas) — but they're all Java-based, requiring a JVM runtime just to diagnose JVM problems. This tool runs on Node.js via npx — no JVM, no Docker, no SSH.

It analyzes offline artifacts (thread dumps, GC logs, heap histograms) rather than requiring a running JVM. Paste a thread dump or GC log and get instant analysis. Part of the MCP Java Backend Suite — 5 tools covering databases, JVM, migrations, Spring Boot, and Redis for Java backend developers.

• 6 MCP tools for comprehensive JVM diagnostics
• Thread dump analysis — deadlock detection, contention hotspots, thread state breakdown
• GC log analysis — pause statistics, heap trends, memory leak detection
• Heap histogram analysis — memory leak candidates, classloader leaks, finalization issues
• JFR summary — Java Flight Recorder file analysis
• Unified diagnosis — cross-correlates thread and GC data
• Supports G1, ZGC, Parallel, Serial, and Shenandoah GC formats
• No external dependencies — works on local text input, no API keys needed

npx mcp-jvm-diagnostics

Or install globally:

npm install -g mcp-jvm-diagnostics

Add to ~/.claude/claude_desktop_config.json:

{
  "mcpServers": {
    "jvm-diagnostics": {
      "command": "npx",
      "args": ["-y", "mcp