NodeZero alternatives
NodeZero by Horizon3.ai costs Custom and is proprietary. If you need something cheaper, open source, self-hosted or simply different, here are 6 alternatives that do the same job, ranked by how widely they are used, with the differences that matter.
6 NodeZero alternatives, by popularity
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A self-hosted multi-agent system that carries out penetration testing tasks in a sandboxed environment, written in Go and React and working with several model providers.
- Free to start; NodeZero has no free tier
- Open source (MIT)
- More widely used (Gid Score 30 vs 18)
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An open-source multi-agent penetration testing tool that runs dynamic tests against applications, validates findings with working proofs of concept and proposes fixes; it runs locally with Docker or as a hosted service.
- Free to start; NodeZero has no free tier
- Open source (Apache-2.0)
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An autonomous offensive security platform that attacks web applications, chains findings into working exploits and reports vulnerabilities with reproducible proof, for continuous testing rather than periodic manual pentests.
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A Python framework from Alias Robotics for building and running AI security agents for reconnaissance, exploitation, privilege escalation and defensive tasks, with guardrails and human-in-the-loop controls.
- Free to start; NodeZero has no free tier
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An AI SOC analyst that investigates security alerts end to end across connected SIEM, EDR, cloud, identity and email tools and returns a verdict with the evidence and reasoning.
- Less widely used (Gid Score 0 vs 18)
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Microsoft-built and partner-built agents inside Defender, Entra, Intune, Purview and Sentinel that handle tasks such as phishing triage, data-loss alert triage, Conditional Access optimisation and vulnerability remediation.
NodeZero vs alternatives at a glance
| Agent | Price | Free to start | Open source | MCP | Local models | Gid Score |
|---|---|---|---|---|---|---|
| NodeZero | Custom | ✕ | ✕ | ? | ? | 18 |
| PentAGI | Free (OSS) | ✓ | ✓ | ? | ? | 30 |
| Strix | Free + $29/mo | ✓ | ✓ | ? | ? | 25 |
| XBOW | Usage-based | ✕ | ✕ | ? | ? | 11 |
| CAI (Cybersecurity AI) | Free | ✓ | ? | ? | ? | 10 |
| Dropzone AI | Custom | ✕ | ✕ | ? | ? | 0 |
| Microsoft Security Copilot agents | Usage-based | ✕ | ✕ | ? | ? | — |
Prices from the vendors' pricing pages; features from official docs (“?” means not documented). Full feature comparison · All prices
FAQ
What is the best alternative to NodeZero?
By usage, the closest alternative is PentAGI, followed by Strix, XBOW, CAI (Cybersecurity AI).
Is there a free alternative to NodeZero?
None of the closest alternatives has a free tier.
Is there an open-source alternative to NodeZero?
Not among the closest alternatives we track.
How do these NodeZero alternatives compare on price?
PentAGI: Free (OSS); Strix: Free + $29/mo; XBOW: Usage-based; CAI (Cybersecurity AI): Free; Dropzone AI: Custom; Microsoft Security Copilot agents: Usage-based.
NodeZero: pricing, features and stats · All AI security agents · Find the right agent in 4 questions