QA-Use MCP Server is a feature-rich MCP server that enables browser automation and QA testing via the Model Context Protocol. It exposes three transports: stdio for local MCP clients, HTTP/SSE for web-based integrations, and a persistent WebSocket tunnel for backend-initiated tasks. It integrates with the desplega.ai API to support end-to-end QA workflows, including automated test sessions, batch execution, session monitoring, and real-time progress notifications. Built on Playwright for browser management, it supports headless and headed modes, plus tunneling via localtunnel to expose browser endpoints publicly. The server provides comprehensive MCP tooling, resources, and prompts, including AAA framework templates, test discovery, and analytics through test run histories and performance metrics. It includes built-in security considerations around API keys, TLS, and access controls, and supports deployment patterns from Docker to Vercel. Designed for developers, QA engineers, and CI/CD teams, it enables local and remote test orchestration, backend-initiated tasks, and scalable browser-based QA workflows with extensive documentation and integration guides.