The scalable, secure alternative to MCP for tool calling
Ruby UTCP brings UTCP 1.1 to Ruby, giving apps and AI agents a standard way to discover and call tools over native protocols. It supports 12 transports, including HTTP, CLI, WebSocket, gRPC, GraphQL, MCP and WebRTC, plus streaming, auth, OpenAPI discovery, and CodeMode for programmable multi-tool workflows. Open source and built for the Ruby ecosystem.
Ruby UTCP launched on Product Hunt on 2026-09-19 and has 95 upvotes and 1 comments so far.
This tool is open source.