# HiddenLayer AI Runtime Security vs Lunar.dev MCP Gateway (MCPX): side-by-side comparison (2026) [HiddenLayer AI Runtime Security](https://cybersectools.com/tools/hiddenlayer-ai-detection-and-response) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [HiddenLayer](https://cybersectools.com/companies/hiddenlayer). [Lunar.dev MCP Gateway (MCPX)](https://cybersectools.com/tools/lunardev-mcp-gateway-mcpx) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [Lunar.dev](https://cybersectools.com/companies/lunardev). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [HiddenLayer AI Runtime Security](https://cybersectools.com/tools/hiddenlayer-ai-detection-and-response) Best for: Teams building their own AI apps and agents It does a different job from the endpoint and identity picks, because it covers the agents your own developers ship, from model scanning in the build pipeline to runtime defense and red teaming. That suits mid-market and enterprise teams with an active AI build program. If most of your agents are bought rather than built, weigh whether you need this layer yet. From [Best Agentic AI Security Solutions for Business](https://cybersectools.com/shortlists/best-agentic-ai-security-solutions), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). 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 | | HiddenLayer AI Runtime Security | Lunar.dev MCP Gateway (MCPX) | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Agentic AI Security | Agentic AI Security | | Verified | No | No | | Deployment type | Cloud | Hybrid | | Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | HiddenLayer | Lunar.dev | | Headquarters | – | – | ### Use cases and capabilities | | HiddenLayer AI Runtime Security | Lunar.dev MCP Gateway (MCPX) | |---|---|---| | PII | Yes | – | | MCP Security | – | Yes | | Agentic AI Security | – | Yes | | AI Gateway | – | Yes | | AI Governance | – | Yes | | RBAC | – | Yes | | SSO | – | Yes | | Gateway | – | Yes | | Observability | – | Yes | | LLM Security | – | Yes | | AI Observability | – | Yes | ### Core features **HiddenLayer AI Runtime Security** 10 features listed. Sign in on the page to see them. **Lunar.dev MCP Gateway (MCPX)** 10 features listed. Sign in on the page to see them. ### Integrations **HiddenLayer AI Runtime Security** 18 integrations listed. Sign in on the page to see them. **Lunar.dev MCP Gateway (MCPX)** 3 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. - [HiddenLayer AI Runtime Security](https://cybersectools.com/tools/hiddenlayer-ai-detection-and-response) fits if you want a cloud product. - [Lunar.dev MCP Gateway (MCPX)](https://cybersectools.com/tools/lunardev-mcp-gateway-mcpx) fits if you need both cloud and on-premises options and you are a small business. ## HiddenLayer AI Runtime Security vs Lunar.dev MCP Gateway (MCPX) FAQ Common questions when comparing HiddenLayer AI Runtime Security vs Lunar.dev MCP Gateway (MCPX) for agentic AI security. ### What is the difference between HiddenLayer AI Runtime Security and Lunar.dev MCP Gateway (MCPX)? **HiddenLayer AI Runtime Security**: Real-time detection & response for agentic and generative AI applications. Built by HiddenLayer. **Lunar.dev MCP Gateway (MCPX)**: Gateway for securing, governing, and auditing AI agent access to MCP servers. Built by Lunar.dev. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes HiddenLayer AI Runtime Security and Lunar.dev MCP Gateway (MCPX)? **HiddenLayer AI Runtime Security** is made by HiddenLayer. **Lunar.dev MCP Gateway (MCPX)** is made by Lunar.dev. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is HiddenLayer AI Runtime Security a good alternative to Lunar.dev MCP Gateway (MCPX)? Often, yes. HiddenLayer AI Runtime Security and Lunar.dev MCP Gateway (MCPX) are both Agentic AI Security products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [HiddenLayer AI Runtime Security vs Onyx Platform](https://cybersectools.com/compare/hiddenlayer-ai-detection-and-response-vs-onyx-platform) - [HiddenLayer AI Runtime Security vs Promptfoo MCP Proxy](https://cybersectools.com/compare/hiddenlayer-ai-detection-and-response-vs-promptfoo-mcp-proxy) - [HiddenLayer AI Runtime Security vs Archestra Enterprise MCP Platform](https://cybersectools.com/compare/archestra-enterprise-mcp-platform-vs-hiddenlayer-ai-detection-and-response) - [Lunar.dev MCP Gateway (MCPX) vs Onyx Platform](https://cybersectools.com/compare/lunardev-mcp-gateway-mcpx-vs-onyx-platform) - [Lunar.dev MCP Gateway (MCPX) vs Promptfoo MCP Proxy](https://cybersectools.com/compare/lunardev-mcp-gateway-mcpx-vs-promptfoo-mcp-proxy) - [Lunar.dev MCP Gateway (MCPX) vs Archestra Enterprise MCP Platform](https://cybersectools.com/compare/archestra-enterprise-mcp-platform-vs-lunardev-mcp-gateway-mcpx) ## Alternatives to each - [See all HiddenLayer AI Runtime Security alternatives](https://cybersectools.com/alternatives/hiddenlayer-ai-detection-and-response) - [See all Lunar.dev MCP Gateway (MCPX) alternatives](https://cybersectools.com/alternatives/lunardev-mcp-gateway-mcpx) --- Source: https://cybersectools.com/compare/hiddenlayer-ai-detection-and-response-vs-lunardev-mcp-gateway-mcpx For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/hiddenlayer-ai-detection-and-response.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on HiddenLayer AI Runtime Security and Lunar.dev MCP Gateway (MCPX): 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