head to head · open source
nono vs ADR
nono has 4,821 GitHub stars, 327 forks, 201 open issues and last shipped 2 days ago. ADR has 2,096 stars, 225 forks, 6 open issues and last shipped 5 days ago. nono leads on adoption by 130% (4,821 vs 2,096 stars). nono is written in Rust under Apache-2.0; ADR is written in Python under Apache-2.0. nono has attracted 7% as many forks as stars, ADR 11%. nono was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 5 topic tags (agent-security, ai-agents, ai-security, llm-security), 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
| nono | ADR | |
|---|---|---|
| GitHub stars | ★ 4.8K | ★ 2.1K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Rust | Python |
| Last push | 2026-11-03 | 2026-10-31 |
| Forks | ⑂ 327 | ⑂ 225 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nono if
- You weight community size — 4.8K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick ADR if
- You want the ADR feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and ADR fits your workflow better
About nono
Built by the team that brought you Sigstore The standard for secure software attestation, used by PyPI, npm, brew, and Maven Central [!NOTE] In the lead up to a 1.0 release, APIs are stabilizing. API changes may still occur where necessary, but will be kept to a minimum. [!IMPORTANT] Organization migration: The official nono registry namespace has moved from always further to nolabs ai . Update any references in your scripts, profiles, and CI. If you already have a pack installed under the old namespace, remove it first before pulling from the new one: The old namespace will be retired — migrate now. Run AI…
About ADR
ADR: Agentic AI Detection and Response ADR (Agentic AI Detection and Response) is an enterprise security system for AI agents. It helps organizations secure employee facing agents such as Cursor, Claude Code, Codex, GitHub Copilot CLI, and DeepSeek Harness, as well as customer facing agents such as AI support agents. ADR is deployed in production at Uber , and the accompanying paper was accepted to MLSys 2026 : Paper PDF · Slides PDF How ADR secures enterprise AI agents ADR secures enterprise AI agents through five complementary capabilities: discovering unsanctioned AI tools, observing agent activity…
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Frequently asked questions
Is nono or ADR more popular?
nono has 4,821 GitHub stars and ADR has 2,096. nono has the larger community by that measure.
Are nono and ADR free?
Both are open source. nono is licensed under Apache-2.0 and ADR under Apache-2.0. Neither carries a licence fee.
What is the difference between nono and ADR?
nono is written in Rust and ADR in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, nono or ADR?
Choose nono if you want the larger community (4,821 stars) or its Apache-2.0 licence terms. Choose ADR if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.