Chainguard

Chainguard is the trusted source for open source, giving engineers and AI agents hardened, trusted, and production-ready artifacts. Organizations use Chainguard to prevent AI supply chain attacks, increase engineering velocity while reducing toil, and maintain continuous compliance.

What you can do

With Chainguard Harness, Mythos hunts for exploitable vulnerabilities in a live build of your application. Chainguard builds custom remediation recommendations for reproducible vulnerabilities across first-party code and open source dependencies to give teams a path to secure code.

Mythos without Mythos access: Teams get the benefit of Mythos vulnerability hunting on their own applications without needing their own access.

Built for the bugs that live at runtime: The harness tests a running copy of the application instead of just static code, surfacing logic flaws, injection, and resource exhaustion that only show up in context.

Isolation by design: Every run happens in its own microVM sandbox built from source on Chainguard OS, with no network egress, no credentials inside, and full audit logging. Customer source code never leaves Chainguard’s isolated environment.

Reproducible findings: Every finding is replayed in a fresh, isolated environment until it lands every time, eliminating false positives and security noise.

Fixes written for your code: Custom recommendations across first-party code and open source dependencies give teams a path to secure code, not a list of risks.

Human review on every fix: A Chainguard engineer reviews and approves every fix and report before it reaches a customer.

How to buy Chainguard

Chainguard is available through the Claude Marketplace. If you have an existing Anthropic commitment, you can apply it here. Contact our team to find the right path for your organization.