Here are a few available packages and frameworks to assist your REST-based projects:
- Restify (>http://restify.com/): This offers both client-side and server-side frameworks for both ends of REST transactions. The server-side API is similar to Express.
- Loopback (http://loopback.io/): This is an offering from StrongLoop, the current sponsor of the Express project. It offers a lot of features and is, of course, built on top of Express.