Javaperf
by theSharquecommunityv1.3.1
8
3
This MCP server profiles Java applications using JDK utilities like jcmd, jfr, and jps, enabling performance diagnostics and analysis without manual CLI usage.
From the registry: Java profiling MCP via jcmd/jfr/jps. Diagnose performance, analyze threads, inspect JFR recordings.
Install & configure
Prerequisites
- required
- requiredJDK with JFR supportJDK 8u262+ or 11+ with JFR. Tools (jps, jcmd, jfr) auto-detected via JAVA_HOME or `which java`.
Install in your client
Paste into the AI you're chatting with — it will figure out the rest
Please install the `javaperf` MCP server into my current AI client (that's you).
Required prerequisites (do these first if not already done):
- **Node.js 18+** — Node.js version 18 or later. (https://nodejs.org)
- **JDK with JFR support** — JDK 8u262+ or 11+ with JFR. Tools (jps, jcmd, jfr) auto-detected via JAVA_HOME or `which java`.
Canonical MCP server config (stdio transport):
- command: `npx`
- args: ["-y","javaperf"]
Note: If JDK tools are not on PATH, set JAVA_HOME to your JDK root.
Add this MCP server to my current client's config in the correct format for you. If you need secrets or credentials I haven't provided, ASK me — do not invent values or leave raw placeholders. After adding it, tell me how to verify the server is connected.Note: If JDK tools are not on PATH, set JAVA_HOME to your JDK root.
Tools (15)
list_java_processes
List running Java processes (pid, mainClass, args).
start_profiling
Start JFR recording with specified settings.
list_jfr_recordings
List active JFR recordings for a process.
stop_profiling
Stop recording and save to a specified location.
check_deadlock
Check for Java-level deadlocks.
analyze_threads
Provide a thread dump with deadlock summary.
heap_histogram
Generate a class histogram.
heap_dump
Create a heap dump for analysis.
heap_info
Provide a brief heap summary.
vm_info
Provide JVM information.
trace_method
Build a call tree for a specified method.
parse_jfr_summary
Parse JFR data into a summary.
profile_memory
Profile memory usage and potential leaks.
profile_time
Profile CPU bottlenecks.
Environment variables
JAVA_HOMErequiredPath to the JDK root for auto-detection of JDK tools.Packages
javaperf
npmv1.3.1transport: stdio
Details
- Language
- TypeScript
- Released
- May 3, 2026
- Last commit
- May 23, 2026
- Registry name
- io.github.theSharque/javaperf
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