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

# Mastra Factory

by Mastra · [Engineering factories](/software-factories/category/engineering-factories.md) Open source

[Visit website ](https://mastra.ai/factory)[View on GitHub](https://github.com/mastra-ai/mastra)

Open-source tool that takes GitHub or Linear issues through triage, planning, building and pull request review with coding agents.

## Overview

Mastra Factory is an open-source tool built on Mastra’s TypeScript agent framework. It takes GitHub or Linear issues through triage, planning, building and pull request review using coding agents, while people answer questions, approve plans and merge the result.

Agents run in sandboxes, on Mastra’s cloud by default or on your own server or E2B, and you connect your own model provider. Agents and tools can be changed in code, and the underlying framework supports MCP.

Factory is free and lives in the main Mastra repository under Apache-2.0. Mastra separately sells its platform, starting with a free plan and then $250 a month plus usage.

## Features

* Takes issues from GitHub or Linear.
* Runs triage, planning, building and pull request review stages.
* Lets people answer questions, approve plans and merge results.
* Runs agents in sandboxes on Mastra's cloud, your own server or E2B.
* Works with your own model provider.
* Lets teams change agents and tools in code.

## Details

* Website

  [mastra.ai/factory](https://mastra.ai/factory)

* Company

  Mastra

* Headquarters

  San Francisco, CA, United States (remote team)

* Category

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

* Source

  Open source

* Repository

  * [github.com/mastra-ai/mastra](https://github.com/mastra-ai/mastra) · 28.9K stars

* License

  Apache-2.0

* Commercial offering

  Yes, paid offering available

* Topics

  * [Issue to pull request](/software-factories/?tag=issue-to-pr)
  * [Sandboxes](/software-factories/?tag=sandboxes)
  * [Code review](/software-factories/?tag=code-review)

* Listed

  September 2026

* Last verified

  October 2026

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