Features

📄️ Tool Customization

Tool Customization lets you create modified versions of existing tools with fixed input values, rewritten descriptions, or both. These customized tools appear alongside the originals and can be used to enforce constraints when tools are called by AI agents.

📄️ Access Control List

MCPX lets you control tool access per consumer using Access Control Lists (ACLs). You can define rules globally, by service, or per tool. ACLs rely on the x-lunar-consumer-tag header to identify which consumer is making the request.

📄️ Basic API Key Authorization

MCPX supports basic API key authorization for new connections to MCPX.

📄️ Consumer Tags

MCPX lets clients identify themselves using the x-lunar-consumer-tag HTTP header. This enables fine-grained control over access, rate limiting, and observability.

📄️ MCPX Metrics

The MCPX server exposes detailed Prometheus metrics about tool calls available at//localhost:3000/metrics