Secure-by-design

Clean, attack-resistant OSS libraries

The same dependencies your team installs today, vetted and patched to prevent supply chain attacks and vulnerabilities from reaching you.

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Built for the ecosystems you use

JavaScript (npm)

Python
(PyPI)

Java (JARs)

Ruby (gems)

Go
(Go Modules)

Malware-free software dependencies

From backdoored binaries to install scripts and typosquatted packages, Echo Libraries are safe from the malware compromises making headlines.

“With all of the recent supply chain attacks, it seemed everyone was scrambling to mitigate. But since we were using Echo libraries, our team was completely calm knowing that we weren’t affected.”

Ty SbanoCISO

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A secure source for your entire ecosystem

Continuously vetted

To prevent any malicious package installs, we vet every library before it enters our repositories to ensure it’s:

Verified before promotion
Screened for malicious behavior and suspicious changes
Checked for unusual maintainer, source, and dependency activity
Continuously monitored after approval

Automatically patched

We continuously patch popular library versions in our repositories to prevent critical and high CVEs.

Backported fixes to the versions you're already using
Patched transitive dependencies
Compatibility validated across the full dependency tree

Designed for developers.

Vetted before every pull
The same library names, versions, and installation methods engineers use today, without the risk of pulling something malicious.
Zero workflow changes
Simply point to our repository, and everything else will flow seamlessly. No changes required to dependency files or version declarations.
99% vulnerability reduction
Critical and high CVEs are remediated automatically on the versions you already run.

Focused on the right metrics

99
Breaking upgrades to application dependencies
0+
Engineering hours saved
per release cycle
99
Time spent mitigating supply chain attacks
0%
Reduction in critical and high dependency CVEs

Eliminate the threat altogether

Supply chain attacks are rapidly accelerating. Worms, hijacked maintainers, typosquats, and malicious updates to packages with millions of downloads all enter the same way: the public registry your pipelines pull from by default. That’s why Echo replaces the source.

Malware prevention
Every library is sandboxed and analyzed to detect and block malware before it can reach your environment.
Open source health
By monitoring the health of the upstream project and maintainer, Echo detects and quarantines any drift in the author, behavior, and release cadence.
Vulnerability reduction
Echo ensures your libraries are clean from critical and high vulnerabilities on the same version your application needs.
Confidence baked in
Teams can seamlessly pull from Echo’s trusted and vetted repository where only safe versions are available to begin with.

Clean and safe, at AI speed

Keeping the ecosystem clean at this kind of scale requires an agentic workforce. That’s why our purpose-built agents continuously vet, patch, and rebuild open source as new packages, versions, and threats appear, so the trusted version is ready before you need it.