fx

fx is a terminal coding agent that edits files and runs commands for developers working in a project folder.

What it is good for

  • Editing project files from a terminal with an AI agent
  • Running shell commands and tests through an AI assistant
  • Automating coding tasks from scripts and CI jobs
  • Connecting an AI coding agent to tools like Slack

At a glance

Who it is for
Setup
Guided command-line setup

Level 4 of 5. You copy and paste commands into a terminal by following the instructions. Comfortable territory for vibe coders.

Cost
Free tier plus paid plans
Type
Agent app
Tasks
Works with
Vercel AI Gateway, ChatGPT, Grok, Ollama, OpenRouter, Slack

Momentum

Rank this week
Not ranked yet
Best rank
None yet
GitHub stars
3,717

GitHub numbers as of Nov 2, 2026. Updated weekly.

3,071 3,418 3,765 Sep 24, 2026 Nov 2, 2026
GitHub stars for fx: 3,119 on Sep 24, 2026, 3,717 on Nov 2, 2026. Source: GitHub.

Official links

Setup steps are on the official pages. We do not repeat them here, since they change.

Questions

Is fx free?
It has a free plan and paid plans, according to its own description.
Do I need to know how to code to use fx?
You do not need to write code, but setup means copying and pasting commands into a terminal by following its instructions.
What does fx work with?
According to its own documentation, it works with Vercel AI Gateway, ChatGPT, Grok, Ollama, OpenRouter, and Slack.
What is fx good for?
Editing project files from a terminal with an AI agent, running shell commands and tests through an AI assistant, automating coding tasks from scripts and CI jobs, and connecting an AI coding agent to tools like Slack.

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Last updated Nov 2, 2026. Tracked since Oct 28, 2026. Parts of this summary required judgment because the source material was brief. The summary was written by an AI model from the project's own description and checked against our copy rules. Spotted an error? Tell us.