Best Claude Code MCP Servers for Testing

Official Microsoft Playwright MCP server for browser automation, web scraping, testing, and accessibility snapshots

Automate cloud browsers for web scraping, testing, and interaction through headless browser infrastructure

An MCP Selenium Server for controlling browsers using natural language in Cursor IDE. Perfect for testing, automation, and multi-user scenarios.

Firefox browser automation via WebDriver BiDi for testing, scraping, and browser control. Supports snapshot/UID-based interactions, network monitoring, console capture, and screenshots.

Production-ready MCP server for AI-driven console automation and monitoring. 40 tools for session management, SSH, testing, monitoring, and background jobs. Like Playwright for terminal applications.

Justfile integration that enables LLMs to execute any CLI or script commands with parameters safely and easily, with environment variable support and comprehensive testing.

JMeter MCP Server for performance testing

Grafana k6 MCP Server for performance testing

Locust MCP Server for performance testing

Web accessibility testing MCP server that analyzes URLs and HTML for WCAG 2.0/2.1/2.2 compliance using axe-core. Tools for color contrast, ARIA validation, and orientation lock detection.

Tool suite built around an MCP server for Android automation for developer workflow and testing

CLI-first API testing tool with structured JSON failures (`failure_category`, `error_code`, `hints`) so AI agents can branch on the taxonomy without parsing stderr. MCP tools: `tarn_run`, `tarn_validate`, `tarn_fix_plan`, `tarn_inspect`, `tarn_rerun_failed`, and more. Tests are …

67+ tools for fan token intelligence: whale flows, signal scores, sports calendar, backtesting, DEX trading, social sentiment. SSE transport with Bearer auth.

Internet speed testing with network performance metrics including download/upload speed, latency, jitter analysis, and CDN server detection with geographic mapping

All-in-one security testing toolbox that brings together popular open source tools through a single MCP interface. Connected to an AI agent, it enables tasks like pentesting, bug bounty hunting, threat hunting, and more.

Yet another CLI tool for testing MCP servers

📇 🏠 🍎 🪟 🐧 - Multimodal AI vision MCP server for image, video, and object detection analysis. Enables UI/UX evaluation, visual regression testing, and interface understanding using Google Gemini and Vertex AI.

CLI tool for testing MCP servers