Maestro is agentic UI testing for mobile apps. Coding agents connect through Maestro MCP and get the eyes and hands to build, run, and verify E2E coverage on emulators, simulators, and real devices. Tests are deterministic and written in plain YAML, so anyone on the team can review what a flow does. Battle-tested, open source, with easy CI integrations. • Maestro CLI: the open-source engine, for developers who bring their own IDE • Maestro MCP: eyes and hands for coding agents • Maestro Studio: visual test creation on Mac and Windows • Maestro Cloud: run suites at scale on test-tuned infrastructure.