Building the product · Independent · 23 Oct 2026

Julien-cpsn/ATAC

A simple API client (postman like) in your terminal

← Building the product
ATAC: terminal API client. Test web requests in your command window.

In simple English

This tool lets you test web addresses and send data requests right inside your command window. It works like popular apps for testing code, but without needing a heavy desktop window or an online account. Your collections of requests are saved as plain text files on your own machine. It costs you nothing to run and does not send your data to any cloud service.

What it is

ATAC is a terminal user interface (a text-based visual layout inside your terminal window) built in Rust (a programming language known for speed and safety) for testing APIs (application programming interfaces, which are ways for different software programs to talk to each other). It manages collections, headers, authentication, and requests without requiring any internet connection.

What it is good for

Solo developers who live inside the terminal and want a fast way to test web requests without opening heavy graphical software or creating online accounts.

Stars3.7k
LicenceMIT
Latestv0.24.0 (2026-10-11)checked 23 Oct 2026
Last code change2026-10-19
Written inRust
Setup effort
2 / 5
Payoff
4 / 5
Good
  • Runs entirely offline with no account required.
  • Saves collections as plain files you can put in version control.
  • Supports WebSockets and MQTT alongside standard HTTP requests.
Watch for
  • Requires Rust version 1.93 or higher if you install from source.
  • Advanced features like GraphQL and gRPC are still on the roadmap.
  • Terminal interfaces have a learning curve if you prefer mouse clicks.
Replaces

Postman

Works well with

Neovim

Similar repositories
  • gitui-org/gitui23k stars

    Another fast terminal user interface written in Rust for developer workflows.

Also reviewed on Repo Radar
  • unocss/unocss19k stars

    A styling engine that reads the labels in your markup and generates only the CSS those labels need.

  • python/mypy21k stars

    The reference type checker for Python, run from the command line.

  • HypothesisWorks/hypothesis9.1k stars

    A Python library that generates test inputs and reduces any failure to the smallest example that still fails.

Install
cargo install atac --locked

Independent: reviewed for Repo Radar outside the daily editions. Every independent repository

Get the next edition in your inbox

A dozen repositories, opened and checked. The licence read, the last release dated, and the ones that did not make it named with the reason. It is the half most lists leave out.

No tracking pixels. One click to leave. The archive stays free either way.

We use your address to send the edition and nothing else. Confirm by email, leave in one click. How we handle it.