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1. [Software Factory Directory](/software-factories.md)
2. [Engineering factories](/software-factories/category/engineering-factories.md)
3. Reason

# Reason

[Engineering factories](/software-factories/category/engineering-factories.md)

[Visit website](https://reasonmachines.com/)

Autonomous AI software engineer that reproduces bugs, writes fixes, runs tests and opens pull requests with proof.

## Overview

Reason is an autonomous AI software engineer for engineering teams. A team connects GitHub and assigns an issue, and Reason’s cloud agents reproduce the bug, write the fix, run the tests and open a pull request with screen recordings and logs as proof.

It also runs scheduled background agents and reviews every change for vulnerable dependencies and leaked secrets. Teams can control it from Slack or mobile, or call it through a public API and remote MCP server.

The product was previously called Ara. Pricing starts at $20 a month plus usage.

**Who it is for:** Engineering teams.

## Features

* Reproduces a bug, writes the fix, runs the tests and opens a pull request.
* Attaches screen recordings and logs to each pull request as proof.
* Runs scheduled background agents.
* Reviews every change for vulnerable dependencies and leaked secrets.
* Offers Slack and mobile control, a public API and a remote MCP server.

## Details

* Website

  [reasonmachines.com](https://reasonmachines.com/)

* Company

  Reason Machines

* Headquarters

  San Francisco, CA

* Category

  [Engineering factories](/software-factories/category/engineering-factories.md)

* Source

  Proprietary

* Deployment

  Cloud

* Topics

  * [Issue to pull request](/software-factories/?tag=issue-to-pr)
  * [Background agents](/software-factories/?tag=background-agents)
  * [Code review](/software-factories/?tag=code-review)
  * [MCP](/software-factories/?tag=mcp)

* Listed

  October 2026

* Last verified

  October 2026

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[All engineering factories](/software-factories/category/engineering-factories.md)