# Nucleon CyclonShield vs Onyx Platform: side-by-side comparison (2026)

[Nucleon CyclonShield](https://cybersectools.com/tools/nucleon-cyclonshield) is a commercial [managed detection and response](https://cybersectools.com/categories/mdr) solution by [Nucleon Security](https://cybersectools.com/companies/nucleon-security). [Onyx Platform](https://cybersectools.com/tools/onyx-platform) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [Onyx Security](https://cybersectools.com/companies/onyx-security). Features, integrations, deployment and the company behind each one, side by side.

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## Side-by-side comparison

| | Nucleon CyclonShield | Onyx Platform |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Managed Detection and Response | Agentic AI Security |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | Nucleon Security | Onyx Security |
| Headquarters | – | – |

### Use cases and capabilities

| | Nucleon CyclonShield | Onyx Platform |
|---|---|---|
| Agentic AI Security | – | Yes |
| AI Governance | – | Yes |
| AI Observability | – | Yes |
| AI SPM | – | Yes |
| LLM Guardrails | – | Yes |
| LLM Security | – | Yes |
| MCP Security | – | Yes |
| Prompt Injection | – | Yes |
| Shadow AI | – | Yes |
| GenAI Security | – | Yes |

### Core features

**Nucleon CyclonShield**

10 features listed. Sign in on the page to see them.

**Onyx Platform**

10 features listed. Sign in on the page to see them.

### Integrations

**Nucleon CyclonShield**

No integrations listed.

**Onyx Platform**

11 integrations listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Nucleon CyclonShield](https://cybersectools.com/tools/nucleon-cyclonshield) fits if you want a cloud product and you are a small business.
- [Onyx Platform](https://cybersectools.com/tools/onyx-platform) fits if you need both cloud and on-premises options.

## Nucleon CyclonShield vs Onyx Platform FAQ

Common questions when comparing Nucleon CyclonShield vs Onyx Platform for managed detection and response.

### What is the difference between Nucleon CyclonShield and Onyx Platform?

**Nucleon CyclonShield**: 24/7 MDR service with continuous monitoring and incident response. Built by Nucleon Security.

**Onyx Platform**: AI control plane for enterprise AI agent security, governance, and observability. Built by Onyx Security.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Nucleon CyclonShield and Onyx Platform?

**Nucleon CyclonShield** is made by Nucleon Security. **Onyx Platform** is made by Onyx Security. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Nucleon CyclonShield a good alternative to Onyx Platform?

In part. Nucleon CyclonShield and Onyx Platform are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Nucleon CyclonShield vs ESET PROTECT MDR Ultimate](https://cybersectools.com/compare/eset-protect-mdr-ultimate-vs-nucleon-cyclonshield)
- [Nucleon CyclonShield vs Arctic Wolf Managed Detection and Response](https://cybersectools.com/compare/arctic-wolf-managed-detection-and-response-vs-nucleon-cyclonshield)
- [Nucleon CyclonShield vs LevelBlue Fusion Platform](https://cybersectools.com/compare/levelblue-fusion-platform-vs-nucleon-cyclonshield)
- [Onyx Platform vs ESET PROTECT MDR Ultimate](https://cybersectools.com/compare/eset-protect-mdr-ultimate-vs-onyx-platform)
- [Onyx Platform vs Arctic Wolf Managed Detection and Response](https://cybersectools.com/compare/arctic-wolf-managed-detection-and-response-vs-onyx-platform)
- [Onyx Platform vs LevelBlue Fusion Platform](https://cybersectools.com/compare/levelblue-fusion-platform-vs-onyx-platform)

## Alternatives to each

- [See all Nucleon CyclonShield alternatives](https://cybersectools.com/alternatives/nucleon-cyclonshield)
- [See all Onyx Platform alternatives](https://cybersectools.com/alternatives/onyx-platform)

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Source: https://cybersectools.com/compare/nucleon-cyclonshield-vs-onyx-platform

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More on Nucleon CyclonShield and Onyx Platform: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md
