Native desktop mock server that updates endpoints while running — no restart needed. Key features: → Live endpoint editing on running servers → Visual state machine for multi-step API flows → WebSocket, SSE support (mock ChatGPT-style streaming) → API recording — capture real responses, auto-create mocks → Chaos engineering — inject latency, random failures → 100% localhost, no cloud, privacy-first -> Performance: 166,000 req/sec Built with Tauri (Rust). Fast, lightweight, free.