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

[KeyRunner](https://cybersectools.com/tools/keyrunner) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [KeyRunner](https://cybersectools.com/companies/keyrunner). [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.

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

| | KeyRunner | Onyx Platform |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Agentic AI Security | Agentic AI Security |
| Verified | No | No |
| Deployment type | On-Premises | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | KeyRunner | Onyx Security |
| Headquarters | – | – |

### Use cases and capabilities

| | KeyRunner | Onyx Platform |
|---|---|---|
| Agentic AI Security | Yes | Yes |
| MCP Security | Yes | Yes |
| RBAC | Yes | – |
| Secrets Management | Yes | – |
| Non-Human Identity | Yes | – |
| AI Governance | Yes | Yes |
| PII | Yes | – |
| Runtime Security | Yes | – |
| AI Gateway | Yes | – |
| AI Observability | – | Yes |
| AI SPM | – | Yes |
| LLM Guardrails | – | Yes |
| LLM Security | – | Yes |
| Prompt Injection | – | Yes |
| Shadow AI | – | Yes |
| GenAI Security | – | Yes |

### Core features

**KeyRunner**

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

**Onyx Platform**

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

### Integrations

**KeyRunner**

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

**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.

- [KeyRunner](https://cybersectools.com/tools/keyrunner) fits if you need to run it on your own servers and you are a small business.
- [Onyx Platform](https://cybersectools.com/tools/onyx-platform) fits if you need both cloud and on-premises options.

## KeyRunner vs Onyx Platform FAQ

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

### What is the difference between KeyRunner and Onyx Platform?

**KeyRunner**: Governed runtime securing AI agent API calls with credential injection & PII redaction. Built by KeyRunner.

**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 KeyRunner and Onyx Platform?

**KeyRunner** is made by KeyRunner. **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 KeyRunner a good alternative to Onyx Platform?

Often, yes. KeyRunner and Onyx Platform are both Agentic AI Security products, and both cover Agentic AI Security, AI Governance, MCP Security. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [KeyRunner vs Autonomous Security](https://cybersectools.com/compare/autonomous-security-vs-keyrunner)
- [KeyRunner vs Highflame Platform](https://cybersectools.com/compare/highflame-platform-vs-keyrunner)
- [KeyRunner vs Votal AI Agent IDP & Guardrails](https://cybersectools.com/compare/keyrunner-vs-votal-ai-agent-idp-and-guardrails)
- [Onyx Platform vs Autonomous Security](https://cybersectools.com/compare/autonomous-security-vs-onyx-platform)
- [Onyx Platform vs Highflame Platform](https://cybersectools.com/compare/highflame-platform-vs-onyx-platform)
- [Onyx Platform vs Votal AI Agent IDP & Guardrails](https://cybersectools.com/compare/onyx-platform-vs-votal-ai-agent-idp-and-guardrails)

## Alternatives to each

- [See all KeyRunner alternatives](https://cybersectools.com/alternatives/keyrunner)
- [See all Onyx Platform alternatives](https://cybersectools.com/alternatives/onyx-platform)

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

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

More on KeyRunner 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