# What is ZOO-API ?

ZOO-API is a server-side Javascript library for creating and chaining ZOO-Services. It lets you script on the server-side to execute WPS Processes, and thus to use common JavaScript controls and logic for WPS chaining.

## Server-side JavaScript WPS

ZOO-API JavaScript Support (Optional) works on the server-side using the Mozilla foundation JavaScript engine, SpiderMonkey. It uses a Proj4js adaptation for server-side reprojection. It also allows to easily convert vector formats (such as GML, KML, GeoJSON, etc).