Attest documentation
Self-hosted browser QA for GitHub pull requests.
Attest helps teams investigate a pull request in a live preview. It reads the change, operates an isolated browser and reports an evidence-backed result to GitHub.
Attest is pre-release. The complete workflow has local fixture coverage, but clean-host installation, real end-to-end journeys and required-check behavior are still being validated. Do not treat a fixture result as production acceptance.
Start here
- Understand how Attest works.
- Check the requirements before installing.
- Install Attest and connect GitHub.
- Review limitations before selecting a test scenario.
Attest is self-hosted: you operate the service, own the GitHub App and provide your own Anthropic API key. Model usage is billed by the provider.

attest