# API to Synchronize to CDEK.MARKET
An Application Programmign Interface (API) is a computing interface which defines interactions between multiple software intermediaries. It defines the kinds of calls or requests that can be made, how to make them, the data formats that should be used, the conventions to follow, etc. To be able to generate an API key, write a request to firstname.lastname@example.org and specify the user's login. Check the API here.