Uber details MCP Gateway: 800 servers and 5,000 tools for AI agents
Uber Engineering described its MCP Gateway platform, which exposes existing internal APIs (HTTP, gRPC, TChannel) to AI agents via the Model Context Protocol without changing downstream services. At publication, the platform hosted over 800 MCP servers and 5,000 tools.
- Architecture splits into MCP Registry (control plane) and Proxy Gateway (data plane)
- AutoCrawler generates tool definitions from Protobuf and Thrift contracts using an LLM
- All tools start disabled and require explicit owner approval before enabling
- Omni MCP supports progressive discovery and response field projection
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