Testing & QA MCP servers

A fast, lightweight MCP server that empowers LLMs with browser automation via Puppeteer’s structured accessibility data, featuring optional vision mode for complex visual understanding and flexible, cross-platform configuration.

Playwright browser automation: interact with web pages through structured accessibility snapshots.

End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.

Browser automation, testing and bot-detection bypass using SeleniumBase CDP Mode with Chromium, including click-based CAPTCHA solving.

Desktop GUI automation on Windows, macOS and Linux via accessibility APIs instead of screenshots, plus workflow recording, data extraction and DOM inspection.

Firefox automation via WebDriver BiDi: snapshot-based interactions, network monitoring, console capture and screenshots for testing and scraping.

AI E2E testing bridge — give AI eyes and hands inside any app. 8 platforms, 40+ tools.

Get any answer from the Facebook Ads Library, conduct deep research including messaging, creative testing and comparisons in seconds.

Website QA for your coding agent: audit SEO, performance, security, accessibility over MCP.

Search, inspect, and install 400+ QA testing skills from qaskills.sh into any MCP client.

Security testing toolbox that combines open source tools behind a single interface for pentesting, bug bounty hunting and threat hunting.

MCP server for Google Lighthouse performance metrics

MCP server for macOS desktop automation via the Accessibility API.

Bring the full power of BrowserStack’s Test Platform to your AI tools, making testing faster and easier for every developer and tester on your team.

Regression testing for MCP servers: discovers configured servers, checks capabilities, invokes tools, detects schema drift and recommends new servers.

Pare Python ג€” Structured Python tool output (ruff, mypy, pip, uv, black, pytest) as typed JSON.

Regression testing for AI agents: save golden baselines, detect behavioral drift and block regressions in CI.

Feature flags for Next.js. One file, full control with A/B testing.

VUDA: Visual UI Debug Agent - An autonomous MCP for visual testing and debugging of user interfaces

Visual UI testing and debugging tools for MCP clients, powered by Playwright

Image, video and object-detection analysis with Google Gemini and Vertex AI for UI/UX evaluation, visual regression testing and interface understanding.

Android automation tool suite for developer workflows and testing.

Google PageSpeed Insights, CrUX and Lighthouse analysis: page comparison, real-user data, batch runs, regression tracking, diagnostics and recommendations.

Enable your code gen agents to create & run 0-config end-to-end tests against new code changes in remote browsers via the Debugg AI testing platform.

MCP server for automated web accessibility scanning with Playwright and Axe-core.

Browse the web with filesystem commands (ls, cd, grep, click) by mapping Chrome's accessibility tree to a virtual filesystem via an extension.

Optimizes Manus AI credit usage by 30-75% via intelligent model routing and smart testing.

Direct access to Cypress tests results and accessibility reports in your AI workflow.

A comprehensive MCP server for tooling interactions(40+) and resource accessibility(60+) plus many useful prompts to interact with Algorand Blockchain.

Stealth automation of unmodified Chrome over raw CDP, using accessibility-tree element refs; can attach to a running Chrome to reuse logged-in sessions.

End-to-end QA loop: analyzes web pages or mobile screens, generates and runs pytest or Maestro tests with auto-retry, and writes an optimization plan.

AI assistant access to .NET SDK for projects, packages, building, testing, and development tools.

D&D 5e SRD 5.2.1 game engine: create characters and run turn-based battles through MCP, backed by Quint formal models, rule-level proofs, and model-based testing.

Create and control browser sessions for web automation, testing, and AI agent tasks

Browser Solidity compiler IDE - smart contract development testing deploy

Security testing tools for penetration testing, network forensics, memory analysis and vulnerability assessment.

Integration with QA Sphere test management system, enabling LLMs to discover, summarize, and interact with test cases directly from AI-powered IDEs

MCP server for visual regression testing: triage a PR's UI diffs from your coding agent.

Local Sapiom developer MCP for authoring, testing, deploying, and inspecting agents.

Chrome automation over raw CDP with multiple tabs, cached accessibility-tree refs, server-side multi-step flow execution and a Python scripting API.

Agent-first MCP server for WeChat Mini Program debugging, automation, and lightweight testing

Testing framework for Model Context Protocol (MCP) servers - like Jest but for MCP

Find test gaps, generate grounded tests, and dynamically prove behavior with mutation testing.

Drive native GUI apps under development: launch, screenshot, read the accessibility tree, inject input, tail logs and diff frames on desktop, Android and iOS.

Internet speed testing: download and upload speed, latency, jitter, and CDN server detection with geographic mapping.

Generate QA datasets & evaluate RAG systems with failure diagnosis. Any LLM.

Accessibility-first computer use on macOS, Windows and Linux: element IDs instead of pixels, background input, a pointer overlay and its own Chrome tab group.

Headless rendering and verification of native Rust GUIs: accessibility tree, semantic selectors, contrast and focus-order checks, and screenshot diffs.