[Canonical HTML page](https://githits.com/software-factories/open-swe/)

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

# Open SWE

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

[Visit website ](https://github.com/langchain-ai/open-swe)[View on GitHub](https://github.com/langchain-ai/open-swe)

Open-source coding agent framework from LangChain that takes tasks from codebase investigation to reviewed pull requests.

## Overview

Open SWE is LangChain’s open-source software factory for engineering teams, described by LangChain as a framework for internal coding agents. Built on LangGraph, it investigates a codebase, implements a change, validates it and opens a pull request, then reviews PRs, watches CI and responds to reviewer feedback.

Teams trigger it from GitHub, Slack or Linear, and each task runs in its own cloud sandbox.

The code is MIT licensed and free. Team deployments run on LangChain’s paid LangSmith Deployment, and production standalone Agent Server deployments need a LangSmith license key.

## Features

* Investigates a codebase, implements a change and validates it.
* Opens a pull request and responds to reviewer feedback.
* Reviews pull requests and watches CI.
* Can be triggered from GitHub, Slack or Linear.
* Runs each task in its own cloud sandbox.
* Built on LangGraph.

## Details

* Website

  [github.com/langchain-ai/open-swe](https://github.com/langchain-ai/open-swe)

* Company

  LangChain

* Headquarters

  San Francisco, CA

* Category

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

* Source

  Open source

* Repository

  * [github.com/langchain-ai/open-swe](https://github.com/langchain-ai/open-swe)

* License

  MIT

* Commercial offering

  Yes, paid offering available

* Topics

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

* Listed

  October 2026

* Last verified

  October 2026

## Similar software factories

* ### [Hoplite](/software-factories/hoplite.md)
  [Cloud coding agent that works on GitHub repos in isolated sandboxes, tests in a browser and opens pull requests.Engineering factories](/software-factories/hoplite.md)
* ### [Mastra Factory](/software-factories/mastra-factory.md)
  [Open sourceOpen-source tool that takes GitHub or Linear issues through triage, planning, building and pull request review with coding agents.Engineering factories GitHub stars: 28.9K](/software-factories/mastra-factory.md)
* ### [Reason](/software-factories/reason-agent.md)
  [Autonomous AI software engineer that reproduces bugs, writes fixes, runs tests and opens pull requests with proof.Engineering factories](/software-factories/reason-agent.md)
* ### [Vorflux](/software-factories/vorflux.md)
  [Cloud coding agent that builds and tests changes on a live copy of your stack and opens pull requests with video.Engineering factories](/software-factories/vorflux.md)

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