# Onyx Platform vs Starseer AI Gateway: side-by-side comparison (2026)

[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). [Starseer AI Gateway](https://cybersectools.com/tools/starseer-ai-gateway) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Starseer](https://cybersectools.com/companies/starseer). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Agentic AI Security Solutions for Business](https://cybersectools.com/shortlists/best-agentic-ai-security-solutions) picks CrowdStrike Falcon Guardian, Rubrik Agent Cloud, Silverfort AI Agent Security and 5 more.

## Side-by-side comparison

| | Onyx Platform | Starseer AI Gateway |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Agentic AI Security | LLM Guardrails |
| Verified | No | No |
| Deployment type | Hybrid | Hybrid |
| Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Onyx Security | Starseer |
| Headquarters | – | – |

### Use cases and capabilities

| | Onyx Platform | Starseer AI Gateway |
|---|---|---|
| Agentic AI Security | Yes | Yes |
| AI Governance | Yes | Yes |
| AI Observability | Yes | – |
| AI SPM | Yes | – |
| LLM Guardrails | Yes | – |
| LLM Security | Yes | Yes |
| MCP Security | Yes | – |
| Prompt Injection | Yes | Yes |
| Shadow AI | Yes | Yes |
| GenAI Security | Yes | Yes |
| AI Gateway | – | Yes |
| AI Compliance | – | Yes |
| Generative AI | – | Yes |
| Gateway | – | Yes |

### Core features

**Onyx Platform**

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

**Starseer AI Gateway**

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

### Integrations

**Onyx Platform**

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

**Starseer AI Gateway**

1 integration 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.

- [Starseer AI Gateway](https://cybersectools.com/tools/starseer-ai-gateway) fits if you are a small business.

## Onyx Platform vs Starseer AI Gateway FAQ

Common questions when comparing Onyx Platform vs Starseer AI Gateway for agentic AI security.

### What is the difference between Onyx Platform and Starseer AI Gateway?

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

**Starseer AI Gateway**: Built by Starseer.

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

### Who makes Onyx Platform and Starseer AI Gateway?

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

### Is Onyx Platform a good alternative to Starseer AI Gateway?

In part. Onyx Platform and Starseer AI Gateway are not in the same category on CybersecTools. Both cover Prompt Injection, LLM Security, AI Governance. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Onyx Platform vs HikmaAI](https://cybersectools.com/compare/hikmaai-vs-onyx-platform)
- [Onyx Platform vs Nestria AI](https://cybersectools.com/compare/nestria-ai-vs-onyx-platform)
- [Onyx Platform vs Highflame Platform](https://cybersectools.com/compare/highflame-platform-vs-onyx-platform)
- [Starseer AI Gateway vs HikmaAI](https://cybersectools.com/compare/hikmaai-vs-starseer-ai-gateway)
- [Starseer AI Gateway vs Nestria AI](https://cybersectools.com/compare/nestria-ai-vs-starseer-ai-gateway)
- [Starseer AI Gateway vs Highflame Platform](https://cybersectools.com/compare/highflame-platform-vs-starseer-ai-gateway)

## Alternatives to each

- [See all Onyx Platform alternatives](https://cybersectools.com/alternatives/onyx-platform)
- [See all Starseer AI Gateway alternatives](https://cybersectools.com/alternatives/starseer-ai-gateway)

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Source: https://cybersectools.com/compare/onyx-platform-vs-starseer-ai-gateway

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/onyx-platform.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Onyx Platform and Starseer AI Gateway: 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