Uber builds MCP Gateway for 5,000 AI tools

Uber has developed an Model Context Protocol gateway to standardize how AI agents discover and invoke internal services, managing over 800 servers and 5,000 tools. The architecture separates the control plane registry from the runtime proxy gateway, using automated IDL scanning and LLMs to generate tool definitions. The system also supports incremental discovery, response projection, and access control enforcement for internal and third-party tools. Open article →