# Capsule Runtime Security for AI Agents vs Nestria AI: side-by-side comparison (2026)

[Capsule Runtime Security for AI Agents](https://cybersectools.com/tools/capsule-runtime-security-for-ai-agents) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [Capsule Security](https://cybersectools.com/companies/capsule-security). [Nestria AI](https://cybersectools.com/tools/nestria-ai) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [Nestria AI](https://cybersectools.com/companies/nestria-ai). 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 4 more.

## Side-by-side comparison

| | Capsule Runtime Security for AI Agents | Nestria AI |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Agentic AI Security | Agentic AI Security |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | Capsule Security | Nestria AI |
| Headquarters | – | – |

### Use cases and capabilities

| | Capsule Runtime Security for AI Agents | Nestria AI |
|---|---|---|
| Agentic AI Security | Yes | Yes |
| Runtime Security | Yes | Yes |
| AI Observability | Yes | – |
| LLM Security | Yes | Yes |
| LLM Guardrails | Yes | Yes |
| Prompt Injection | Yes | Yes |
| OWASP | Yes | – |
| MITRE ATT&CK | Yes | – |
| NIST | Yes | – |
| Least Privilege | Yes | – |
| AI Governance | – | Yes |
| GenAI Security | – | Yes |
| Generative AI | – | Yes |
| AI Compliance | – | Yes |

### Core features

**Capsule Runtime Security for AI Agents**

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

**Nestria AI**

9 features 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.

- [Capsule Runtime Security for AI Agents](https://cybersectools.com/tools/capsule-runtime-security-for-ai-agents) fits if you want a cloud product.
- [Nestria AI](https://cybersectools.com/tools/nestria-ai) fits if you need both cloud and on-premises options.

## Capsule Runtime Security for AI Agents vs Nestria AI FAQ

Common questions when comparing Capsule Runtime Security for AI Agents vs Nestria AI for agentic AI security.

### What is the difference between Capsule Runtime Security for AI Agents and Nestria AI?

**Capsule Runtime Security for AI Agents**: Runtime security platform for AI agents with discovery, observability, and enforcement, built by Capsule Security.

**Nestria AI**: Governance and security platform for agentic AI in regulated enterprise workflows, built by Nestria AI.

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

### Who makes Capsule Runtime Security for AI Agents and Nestria AI?

**Capsule Runtime Security for AI Agents** is made by Capsule Security. **Nestria AI** is made by Nestria AI. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Capsule Runtime Security for AI Agents a good alternative to Nestria AI?

Often, yes. Capsule Runtime Security for AI Agents and Nestria AI are both Agentic AI Security products, and both cover Agentic AI Security, LLM Security, LLM Guardrails. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Capsule Runtime Security for AI Agents vs Wider Security AEGIS](https://cybersectools.com/compare/capsule-runtime-security-for-ai-agents-vs-wider-security-aegis)
- [Capsule Runtime Security for AI Agents vs Onyx Platform](https://cybersectools.com/compare/capsule-runtime-security-for-ai-agents-vs-onyx-platform)
- [Capsule Runtime Security for AI Agents vs Certiv](https://cybersectools.com/compare/capsule-runtime-security-for-ai-agents-vs-certiv)
- [Nestria AI vs Wider Security AEGIS](https://cybersectools.com/compare/nestria-ai-vs-wider-security-aegis)
- [Nestria AI vs Onyx Platform](https://cybersectools.com/compare/nestria-ai-vs-onyx-platform)
- [Nestria AI vs Certiv](https://cybersectools.com/compare/certiv-vs-nestria-ai)

## Alternatives to each

- [See all Capsule Runtime Security for AI Agents alternatives](https://cybersectools.com/alternatives/capsule-runtime-security-for-ai-agents)
- [See all Nestria AI alternatives](https://cybersectools.com/alternatives/nestria-ai)

---

Source: https://cybersectools.com/compare/capsule-runtime-security-for-ai-agents-vs-nestria-ai

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

More on Capsule Runtime Security for AI Agents and Nestria AI: 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