Prospero

Prospero is open source on GitHub. This itch.io release is the professional edition for macOS and Windows, and remote deployment engines for all supported architectures are bundled inside the program. Use the GitHub project for issues and discussion.

Prospero is a native GUI application for Windows, macOS, and Linux that connects to an AI model provider, local or remote, allowing AI agents to drive your computer to develop software. It plows through intermittent errors and keeps at its task while unattended. It speaks the OpenAI Chat Completions API, used by llama.cpp, vLLM, LiteLLM, and providers with a compatible API. Also Anthropic's Messages API, with extended thinking and prompt caching. No providers are configured out of the box.

The UI is highly flexible, and you can rearrange the panes as you please with dragging and docking. Save your layouts for later in View -> Layouts. Unlike conventional ImGui applications, rendering is passive and will not consume resources while idle.

It is a single executable, written in C++. In the typical case the engine runs in the same process as the window, and needs no daemon or server. The same executable can run headless, on another machine over ssh, or in the background after its window closes. The engine is lean and portable, and runs on computers and operating systems a quarter century old. Imagine a coding harness on Windows XP.

Once it's connected to a provider, you can ask Prospero for help with itself. It will read its own embedded documentation, self-configure, and navigate you to any place in its UI.

Prospero's desktop control features allow it to effectively develop, test, and debug GUI applications and games.