Now Open Source

The Dependabot Proxy, previously internal to GitHub, is now available as open source under the MIT license. This HTTP proxy is a critical component of the Dependabot dependency management system, handling authentication when Dependabot connects to the GitHub API and private package registries.

What Developers Can Do

With the source code now public, developers can:

• Review authentication logic to understand how Dependabot securely handles credentials across different package managers and Git servers
• Submit bug fixes and ecosystem support to expand the proxy's capabilities
• File issues and collaborate directly with GitHub's development team in an open repository

The proxy supports nine major package ecosystems: npm, Maven, Docker, Cargo, Helm, NuGet, pip, RubyGems, and Terraform, along with Git servers including GitHub, Azure DevOps, and others.

Compliance and Transparency

This move is particularly valuable for organizations with strict compliance and supply chain security requirements. Teams can now audit the exact mechanisms used in their software supply chain and verify that authentication follows their security policies. This aligns with broader industry trends toward transparency in dependency management tools.

The proxy was built in Go and is part of a larger open source ecosystem that includes dependabot-core, the engine powering all Dependabot features.