# About Arcanist

Arcanist builds agents that review and test software changes. Zeus is our code reviewer. It checks out a pull request in an isolated environment, reads the repository, runs commands, and proves suspected defects before it reports them. Anubis is our QA tester. It starts the changed application and tests its behavior through a browser and its real backend.

## Why we built Arcanist

AI coding tools can produce changes faster than teams can verify them. Reading a diff is useful, but it cannot prove that the application starts, that a payment retry is safe, or that a user can complete a changed flow. Arcanist gives review and QA agents a working copy of the software, a shell, and the tools needed to test their claims. The result includes evidence that an engineer can inspect.

## Who we serve

Arcanist is for engineering teams that use GitHub and want more reliable review of pull requests, especially teams shipping code written with AI assistance. Our team includes engineers with staff, founding, and senior experience at Ramp, Raylu, and Gumloop. We are OpenAI accelerator alumni and operate from New York City.

- [Developer resources](https://www.tryarcanist.com/developers)
- [Contact Arcanist](https://www.tryarcanist.com/contact)
- [Privacy policy](https://www.tryarcanist.com/privacy)