You are here Apex API - Developers API provides programmatic access to an organization�s information and allows developers to implement custom functionality. The worldwide leader in on-demand customer relationship management (CRM) services. More companies trust their vital customer and sales data to than any other on-demand CRM company in the world. The Apex platform and API extends Salesforce and the AppExchange is a directory of on-demand applications. The Apex RESTful API allows developers to create other web services, email services and perform complex validation of objects, and create complete business processes that are not normally supported.