CircleCI is the CI/CD platform built for speed, scale, and compliance - trusted by the world's best engineering teams to build, test, and deploy with confidence. With flexible execution environments, intelligent build optimization, and AI-driven validation with Chunk, CircleCI provides the compute, automation, and insights that power modern software delivery.

How to set up CircleCI

For the best experience, we recommend setting up your CircleCI integration through the CircleCI web app rather than installing from the GitHub Marketplace.

To integrate via OAuth (this listing's integration):

• New to CircleCI? Sign up using "Log in with GitHub" at https://circleci.com/signup - your organizations and repositories will be automatically connected through OAuth.
• Already have a CircleCI account? Follow the GitHub OAuth integration guide: https://circleci.com/docs/guides/integration/github-integration/#connect-a-github-account

To integrate via the CircleCI GitHub App:

• Log in to your CircleCI account
• Navigate to Organization Settings > VCS Connections
• Follow the prompts to install and configure the CircleCI GitHub App

Both integrations can be used alongside each other. Learn more: Using the CircleCI GitHub App in an OAuth organization - CircleCI Docs

Why teams choose CircleCI

Lightning-fast feedback - Intelligent caching, test splitting, and autoscaling deliver some of the fastest build times in CI/CD, so your team spends less time waiting and more time shipping.

Flexible execution - Run jobs across a wide range of environments - Docker, Linux, macOS, Windows, Arm, GPU - or bring your own infrastructure with self-hosted runners.

Enterprise-grade confidence - FedRAMP authorized and SOC 2 Type II certified, with audit logs, OIDC, and granular access controls to protect your software supply chain.

Autonomous validation - Chunk, CircleCI's CI/CD agent, tackles flaky tests, failed builds, and configuration drift so your team can focus on building, not pipeline maintenance.

Need help? Visit Welcome to CircleCI Documentation - CircleCI Docs or CircleCI Support Center