# Vulcan Protect vs ZenGuard: side-by-side comparison (2026)

[Vulcan Protect](https://cybersectools.com/tools/vulcan-protect) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Vulcan](https://cybersectools.com/companies/vulcan). [ZenGuard](https://cybersectools.com/tools/zenguard) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [ZenGuard](https://cybersectools.com/companies/zenguard). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Vulcan Protect | ZenGuard |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | LLM Guardrails | Agentic AI Security |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Vulcan | ZenGuard |
| Headquarters | – | – |

### Use cases and capabilities

| | Vulcan Protect | ZenGuard |
|---|---|---|
| LLM Security | Yes | Yes |
| Prompt Injection | Yes | Yes |
| GenAI Security | Yes | Yes |
| AI DLP | Yes | – |
| PII | Yes | Yes |
| Content Filtering | Yes | Yes |
| RAG Security | Yes | – |
| Generative AI | Yes | – |
| MITRE ATT&CK | Yes | – |
| OWASP | Yes | – |
| LLM Guardrails | – | Yes |
| Agentic AI Security | – | Yes |
| AI Pentesting | – | Yes |
| AI Observability | – | Yes |
| Runtime Security | – | Yes |

### Core features

**Vulcan Protect**

1 feature listed. Sign in on the page to see them.

**ZenGuard**

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

### Integrations

**Vulcan Protect**

No integrations listed.

**ZenGuard**

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.

- [Vulcan Protect](https://cybersectools.com/tools/vulcan-protect) fits if you need both cloud and on-premises options.
- [ZenGuard](https://cybersectools.com/tools/zenguard) fits if you want a cloud product and you are a startup.

## Vulcan Protect vs ZenGuard FAQ

Common questions when comparing Vulcan Protect vs ZenGuard for LLM guardrails.

### What is the difference between Vulcan Protect and ZenGuard?

**Vulcan Protect**: Runtime guardrail platform that monitors and protects GenAI inputs/outputs in production. Built by Vulcan.

**ZenGuard**: Runtime protection and security testing platform for LLM-based AI agents. Built by ZenGuard.

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

### Who makes Vulcan Protect and ZenGuard?

**Vulcan Protect** is made by Vulcan. **ZenGuard** is made by ZenGuard. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Vulcan Protect a good alternative to ZenGuard?

In part. Vulcan Protect and ZenGuard are not in the same category on CybersecTools. Both cover LLM Security, Prompt Injection, PII. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Vulcan Protect vs Airia AI Platform Guardrails](https://cybersectools.com/compare/airia-ai-platform-guardrails-vs-vulcan-protect)
- [Vulcan Protect vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/portkey-guardrails-for-bedrock-vs-vulcan-protect)
- [Vulcan Protect vs Pangea AI Security Platform](https://cybersectools.com/compare/pangea-ai-security-platform-vs-vulcan-protect)
- [ZenGuard vs Airia AI Platform Guardrails](https://cybersectools.com/compare/airia-ai-platform-guardrails-vs-zenguard)
- [ZenGuard vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/portkey-guardrails-for-bedrock-vs-zenguard)
- [ZenGuard vs Pangea AI Security Platform](https://cybersectools.com/compare/pangea-ai-security-platform-vs-zenguard)

## Alternatives to each

- [See all Vulcan Protect alternatives](https://cybersectools.com/alternatives/vulcan-protect)
- [See all ZenGuard alternatives](https://cybersectools.com/alternatives/zenguard)

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Source: https://cybersectools.com/compare/vulcan-protect-vs-zenguard

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

More on Vulcan Protect and ZenGuard: 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