head to head · open source
attestix vs chainloop
attestix has 841 GitHub stars, 75 forks, 21 open issues and last shipped 3 days ago. chainloop has 610 stars, 64 forks, 17 open issues and last shipped yesterday. attestix leads on adoption by 38% (841 vs 610 stars). attestix is written in Python under Apache-2.0; chainloop is written in Go under Apache-2.0. attestix has attracted 9% as many forks as stars, chainloop 10%. chainloop was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (ai-agents, attestation, compliance), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| attestix | chainloop | |
|---|---|---|
| GitHub stars | ★ 841 | ★ 610 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-10-31 | 2026-11-02 |
| Forks | ⑂ 75 | ⑂ 64 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick attestix if
- You weight community size — 841 stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick chainloop if
- You want the chainloop feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and chainloop fits your workflow better
About attestix
Attestix Compliance Automation for AI Agents Make your AI agents EU AI Act compliant with cryptographically verifiable proof. Open source identity, credentials, compliance automation, and trust scoring. 47 MCP tools across 9 modules, 44 REST API endpoints, 531 test suite (440 functional + 91 RFC / W3C conformance benchmarks). Real integrations with LangChain, OpenAI Agents SDK, and CrewAI. Status: v0.4.0 stable (pre release 0.4.1rc1 available via the pre channel). Single maintainer project, community contributions welcome. No independent third party security audit has been performed yet; deploy with the same…
read the full attestix overview →
About chainloop
Chainloop What is it? Chainloop is an open source evidence store for your Software Supply Chain attestations, Software Bill of Materials (SBOMs), VEX, SARIF, QA reports, and more. With Chainloop, Security, Compliance, and Risk management teams can define security and compliance policies, what evidence and artifacts they want to receive, and where to store them. On the other hand, developers are shielded from all this complexity by being given simple instructions on what to provide when instrumenting their CI/CD pipelines. To learn more about the project motivation please look at our documentation. How does it…
read the full chainloop overview →
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Frequently asked questions
Is attestix or chainloop more popular?
attestix has 841 GitHub stars and chainloop has 610. attestix has the larger community by that measure.
Are attestix and chainloop free?
Both are open source. attestix is licensed under Apache-2.0 and chainloop under Apache-2.0. Neither carries a licence fee.
What is the difference between attestix and chainloop?
attestix is written in Python and chainloop in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, attestix or chainloop?
Choose attestix if you want the larger community (841 stars) or its Apache-2.0 licence terms. Choose chainloop if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.