Evan's Blog: Open-source

Announcing Keryx: A Full-Stack TypeScript Framework for APIs and MCP Servers

ai engineering mcp node.js open-source typescript 

After 14 years of building Actionhero, I built a new framework from scratch. Keryx lets you write one Action class and deploy it across HTTP, WebSocket, CLI, background tasks, and MCP — all with the same validation and middleware.

2026-03-13