Callisto is a lightweight local API development client built with Go and Fyne.
It provides a simple desktop interface for composing HTTP requests and inspecting responses.
Perfect for developers who want a fast, distraction-free alternative to heavy API clients.
- 📝 Compose and send GET, POST, PUT, DELETE requests
- 🔑 Add custom headers and body parameters
- 🗂️ Manage multiple key/value rows dynamically
- 📦 View JSON responses with formatting
- 📜 Response status and headers display
- ⚡ Built with Go + Fyne → runs cross-platform (Linux, macOS, Windows)
- 🧪 Planned: request history, environment variables, and dark mode
- Go 1.22+ installed