Welcome to Lunar.dev MCPX
Lunar.dev MCPX is a lightweight, unified gateway for orchestrating and securing your entire MCP ecosystem. Designed for teams managing multiple servers and tools, MCPX provides a single point of control for all interactions. It gives you full visibility and control over which tools are accessible to which agents, how they’re configured, and how they’re performing, all while granting you complete visibility into all traffic.
Why MCPX?
Agents and AI powered applications are expanding their capabilities by connecting to MCP servers and the number of tool servers they rely on is only increasing. MCPX helps you stay in control with:
- Centralized access: Aggregate and expose tool servers through a single MCP server.
- Policy enforcement: Control which tools and methods are accessible to which agents.
- Customization: Tailor tools to your specific workflows
- Full observability: Track usage, latency, and errors across all tool calls.
- Authorization Management: Manage all your secrets, API keys and OAuth tokens in one place.
With MCPX, you can safely connect your agents to anything, without losing control.
Features at a Glance
| Feature | Description |
|---|---|
| Access Control List | Define global, service-level, or tool-level access per consumer group using the x-lunar-consumer-tag header. |
| API Key Authentication | Optional API key auth using x-lunar-api-key, configured via the API_KEY environment variable. |
| Tool Customization | Fine tune existing tools for your specific usage, improving LLM accuracy and preventing unwanted usage. |
| Lunar Gateway Integration | Seamlessly connect with Lunar Gateway by setting LUNAR_PROXY_HOST for downstream proxying. |
| Built In Metrics | Exposes Prometheus-compatible metrics (/metrics) including detailed tool_call_duration_ms histograms. |
If you're ever unsure where to look, we’ve included an AI chatbot that’s always ready to assist you in finding the answers you're looking for.