jigsaw‑rpc is a lightweight, TypeScript‑based RPC framework for Node.js that uses the native UDP datagram API to provide fast, low‑latency remote‑method calls. It lets developers expose “ports” (methods) on a server‑side Jigsaw and invoke them from clients with a simple promise‑based API, while supporting middleware, load‑balancing, and custom routing—making it suitable for building high‑performance distributed services in JavaScript/TypeScript projects.