UAT Engine

About

The UAT Engine is an AI-native test engine designed to facilitate automated testing for AI agents. Instead of requiring human-written test scripts, it allows agents to declaratively describe testing objectives. Built upon Playwright and Bun, it offers 46 tools accessible via the Model Context Protocol (MCP) for UI acceptance testing, API integration testing, and verification of MCP servers. It supports declarative YAML flows for complex scenarios, including variable interpolation, conditionals, and parallel execution, ensuring robust and production-hardened test automation.

Key Features

• Powered by Playwright for full Chromium browser automation with advanced features
• Declarative YAML flows for codeless test scenario creation and execution
• MCP-native integration for seamless connection with any MCP client
• Production-hardened design with Docker, graceful shutdown, and readiness probes
• Comprehensive testing across browser, API, and MCP server environments
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Use Cases

• Automated UI acceptance testing for web applications by AI agents
• API integration testing to verify backend services and their responses
• Verification of MCP server functionality and tool availability
• Continuous smoke testing of deployments across various platforms
• Executing complex multi-step test scenarios involving both API and browser interactions