# Capsule Runtime Security for AI Agents vs Repello MCP Gateway: 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). [Repello MCP Gateway](https://cybersectools.com/tools/repello-mcp-gateway) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [Repello AI](https://cybersectools.com/companies/repello-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 | Repello MCP Gateway |
|---|---|---|
| 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 | Repello AI |
| Headquarters | – | – |

### Use cases and capabilities

| | Capsule Runtime Security for AI Agents | Repello MCP Gateway |
|---|---|---|
| Agentic AI Security | Yes | – |
| Runtime Security | Yes | – |
| AI Observability | Yes | – |
| LLM Security | Yes | – |
| LLM Guardrails | Yes | – |
| Prompt Injection | Yes | – |
| OWASP | Yes | – |
| MITRE ATT&CK | Yes | – |
| NIST | Yes | – |
| Least Privilege | Yes | – |
| Gateway | – | Yes |
| Policy | – | Yes |
| Generative AI | – | Yes |
| MCP Security | – | Yes |

### Core features

**Capsule Runtime Security for AI Agents**

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

**Repello MCP Gateway**

7 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.
- [Repello MCP Gateway](https://cybersectools.com/tools/repello-mcp-gateway) fits if you need both cloud and on-premises options.

## Capsule Runtime Security for AI Agents vs Repello MCP Gateway FAQ

Common questions when comparing Capsule Runtime Security for AI Agents vs Repello MCP Gateway for agentic AI security.

### What is the difference between Capsule Runtime Security for AI Agents and Repello MCP Gateway?

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

**Repello MCP Gateway**: Security gateway for monitoring and protecting MCP-based AI agent tool calls, built by Repello AI.

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

### Who makes Capsule Runtime Security for AI Agents and Repello MCP Gateway?

**Capsule Runtime Security for AI Agents** is made by Capsule Security. **Repello MCP Gateway** is made by Repello 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 Repello MCP Gateway?

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

## Related comparisons

- [Capsule Runtime Security for AI Agents vs Certiv](https://cybersectools.com/compare/capsule-runtime-security-for-ai-agents-vs-certiv)
- [Capsule Runtime Security for AI Agents vs Tenet Security Platform](https://cybersectools.com/compare/capsule-runtime-security-for-ai-agents-vs-tenet-security-platform)
- [Capsule Runtime Security for AI Agents vs CodeIntegrity AARM Platform](https://cybersectools.com/compare/capsule-runtime-security-for-ai-agents-vs-codeintegrity-aarm-platform)
- [Repello MCP Gateway vs Certiv](https://cybersectools.com/compare/certiv-vs-repello-mcp-gateway)
- [Repello MCP Gateway vs Tenet Security Platform](https://cybersectools.com/compare/repello-mcp-gateway-vs-tenet-security-platform)
- [Repello MCP Gateway vs CodeIntegrity AARM Platform](https://cybersectools.com/compare/codeintegrity-aarm-platform-vs-repello-mcp-gateway)

## Alternatives to each

- [See all Capsule Runtime Security for AI Agents alternatives](https://cybersectools.com/alternatives/capsule-runtime-security-for-ai-agents)
- [See all Repello MCP Gateway alternatives](https://cybersectools.com/alternatives/repello-mcp-gateway)

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

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 Repello MCP 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