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Perf Tools MCP Server

by Rog0x
Developer ToolsModerate6.5MCP RegistryLocal
Free

Server data from the Official MCP Registry

Benchmark, memory, Big O analysis for AI agents

About

Benchmark, memory, Big O analysis for AI agents

Security Report

6.5
Moderate6.5Moderate Risk

Valid MCP server (2 strong, 4 medium validity signals). 1 code issue detected. 3 known CVEs in dependencies (0 critical, 3 high severity) Package registry verified. Imported from the Official MCP Registry.

8 files analyzed · 5 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

file_system

Check that this permission is expected for this type of plugin.

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-rog0x-perf": {
      "args": [
        "-y",
        "@rog0x/mcp-perf-tools"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

mcp-perf-tools

Performance analysis tools for AI agents, exposed via the Model Context Protocol (MCP).

Tools

benchmark

Benchmark JavaScript code execution. Run a snippet N times and measure min/max/avg/median/p95/p99 latency and operations per second. Optionally compare two implementations side by side.

Parameters:

  • code (string) — JavaScript code to benchmark
  • iterations (number, default 1000) — Number of iterations
  • compareCode (string, optional) — Second implementation to compare
  • labelA / labelB (string) — Labels for comparison output

memory_analyze

Analyze Node.js memory usage: heap used/total, RSS, external memory, and array buffers. Takes snapshots over time and uses linear regression to detect trends and potential memory leaks.

Parameters:

  • action"snapshot" | "analyze" | "clear"

big_o_estimate

Estimate Big O complexity from empirical timing data. Fits measurements against O(1), O(log n), O(n), O(n log n), O(n^2), O(n^3), and O(2^n) using R-squared scoring. Includes an ASCII growth curve visualization.

Parameters:

  • inputSizes (number[]) — Array of input sizes
  • executionTimesMs (number[]) — Corresponding execution times in ms

bundle_analyze

Analyze a JavaScript bundle file: raw size, gzip compressed estimate, detected module count, largest modules, and tree-shaking opportunities (side effects, duplicates).

Parameters:

  • filePath (string) — Absolute path to the bundle file

load_test

Simple HTTP load tester. Sends N requests at a given concurrency level and reports response time percentiles, error rate, throughput (req/sec), and status code distribution.

Parameters:

  • url (string) — Target URL
  • totalRequests (number, default 100) — Total requests to send
  • concurrency (number, default 10) — Concurrent request count
  • method (string, default "GET") — HTTP method
  • headers (object, optional) — HTTP headers
  • body (string, optional) — Request body
  • timeoutMs (number, default 30000) — Request timeout

Setup

npm install
npm run build

Usage with Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "perf-tools": {
      "command": "node",
      "args": ["D:/products/mcp-servers/mcp-perf-tools/dist/index.js"]
    }
  }
}

License

MIT

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