ATAC is a terminal HTTP client built for developers who prefer working in the command line. It provides a complete alternative to graphical API clients like Postman or Insomnia, delivering all essential features within a lightweight terminal interface.

Core capabilities include:

HTTP methods support: GET, POST, PUT, PATCH, DELETE, OPTIONS, HEAD, TRACE, and CONNECT
Authentication options: Basic auth and Bearer tokens for secure API testing
Request collections: Organize and manage multiple requests in structured collections stored as JSON or YAML
Asynchronous requests: Run multiple requests concurrently without blocking your workflow
Pre and post-request scripts: Execute custom logic before sending requests or after receiving responses
Offline-first philosophy: No account required, no cloud dependency, complete data privacy
Cross-platform compatibility: Works on Linux, macOS, and Windows
Vim key-bindings: Navigate and edit with familiar keyboard shortcuts
Customizable themes: Adapt the interface to your preferences

ATAC excels for developers who need a lightweight, account-free API client that works entirely offline. The terminal-based approach eliminates GUI overhead while maintaining full functionality for API development, testing, and debugging workflows.

Cargo