The MCP Gateway for Secure and Governed Tool Access

MCPX is a drop-in gateway for all your AI agents and copilots – enforcing enterprise security and compliance at scale. It gives platform teams full governance and real-time visibility over every agent-tool interaction, with zero changes to existing agent code.

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See the MCP Gateway in Action

This short walkthrough shows how MCPX centralizes tool usage for AI agents: simplifying access, applying policy guardrails, and providing live visibility into every agentic workflow.

The Gateway Architecture

The MCP Gateway sits between AI agents and MCP servers, acting as a unified gateway for all tool invocations. It intercepts, authenticates, and governs traffic using policies defined by the organization.

Unlock Safe and Scalable MCP Adoption

  • Unify Access to All MCP Servers

    Expose a single gateway to access both local and remote MCP servers, with built-in service discovery.

    Avoid per-agent integration or siloed deployments - connect once and govern everywhere.

  • Enforce Authentication and Fine-Grained Access Controls

    Control who can invoke what, from which agent, with full on-behalf-of attribution.

    Supports token-based auth, role-based profiles, and per-agent tool restrictions.

  • Govern and Harden Tool Behavior at the Gateway

    Prevent collisions, override tool definitions, and insert approval flows for sensitive actions.

    Standardize tool exposure with guardrails that reflect your security and compliance policies.

  • Gain Visibility Across Teams and Agents

    Monitor tool usage and agent behavior with real-time metrics and audit logs.

    Track every invocation, including prompt payloads, tool responses, and usage attribution.

Value proposition

Eliminate Shadow MCP Usage and Enforce Enterprise Governance

Gain full control over MCP adoption, prevent security risks, and ensure compliant AI operations.

  • Role-Based Access Control

    Define who can use which tools and enforce enterprise policies with granular permissions.

  • Authentication to MCP Servers

    Ensure only approved AI agents and users can access MCP servers with API keys or OAuth.

  • Real-Time MCP Visibility

    Track all MCP usage in real time to detect risks fast. MCPX logs every agent action in an immutable audit trail so you can trace who did what and prove compliance.

  • Advanced Telemetry

    Gain deep insights into tool usage, performance, and security events for governance and optimization.

  • Tool Customization

    Adapt or restrict tool behavior to meet compliance, enforce policies, and align with enterprise needs.

  • SSO and IAM Integrations

    Simplify secure access with  SSO and connect to your company’s IAM system for centralized user management and governance.

Role-Based Access Control

Set profile-specific access permissions to control tool usage and enforce enterprise policies.

Tool Customization

Customize tool behavior to meet compliance, enforce policies, and align with enterprise needs.

Real Time MCP Visibility

View all agent-to-tool calls routed through MCPX to detect risks and ensure auditability.

Cost Control

Set agent-specific token limits and fallback models to manage MCP costs and ensure reliable AI behavior.

The MCP Gateway Pricing

FREE
Free Plan

Ideal for individuals or small teams
‍

Free & OSS

  • MCP Server Management:
    Shared MCPX instance for all users

  • Visibility & Monitoring:
    Unified view across all users

Includes

  • Authorization

  • Tool Access Controls:
    Individual-level controls

  • Tool Customization

  • Support & SLA
    Community support (Premium support available separately)

ENTERPRISE
Enterprise Plan

Purpose-built for organizations with agent governance needs

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  • MCP Server Management:
    Dedicated MCPX per user or agent, centrally managed

  • Visibility & Monitoring:
    Per-agent and per-user visibility with usage metrics and insights

Includes

  • Authorization

  • Tool Access Controls:
    Organization-wide access policies via permission profiles

  • Tool Customization
    Cross-company enforced customization by admin

  • IAM Integration
    Integration with enterprise IdPs

  • Human-in-the-Loop Controls
    Manual review and approval workflows

  • AI Gateway Integration
    Native integration with Lunar AI Gateway

  • Support & SLA
    Enterprise-grade support with SLA

Additional Resources

Securing GenAI: Addressing the Top OWASP LLM Risks with Lunar’s AI Gateway

Large Language Models introduce new security challenges, including prompt injection, data exposure, and misuse of model functionality. Lunar's AI Gateway provides a defense-in-depth approach to mitigate these risks, enabling safe and reliable use of generative AI in production environments.

Case study

MCP Gateway Access Controls: Defining Permissions for LLM Agents

MCP Gateway enables fine-grained access controls for LLM agents interacting with third-party APIs. Scoped permissions, auditability, and enforcement mechanisms ensure secure, compliant, and production-ready API usage by autonomous agents.

Case study

MCPX: From Local Experimentation to Production-Grade Infrastructure

At Lunar.dev, we’ve been working on MCPX to help bring the local-first Model Context Protocol (MCP) into production. In this first part, we’re sharing what we’ve learned—from early experiments to a scalable Kubernetes setup—along with the open source project for the community.

Case study

MCP Is Here — This is the Infrastructure It Needs

MCP is evolving into a standard layer in the AI stack. But with that potential comes real infrastructure risk. As the ecosystem grows, decision-makers should keep infrastructure top-of-mind. With the right controls in place, MCP doesn’t just unlock new capabilities—it becomes a trusted foundation for the next generation of AI-powered systems.

Case study

See MCPX in Action

Discover the benefits of centralized MCP management. Request beta access to Lunar.dev's MCP Gateway today.

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