API presentation
REST API are the common way to integrate with external systems.
Opencell have several API levels:
unitary API (see v0-v1-v2 information below)
business API (spread over unitary and a dedicated article for some)
To learn about the common use cases of Opencell REST APIs, check out the Getting started with API.
API encompass 3 versions, for guidance of API to use see API - Recommended API per version
v2 RESTful including Generic API (read only customizable requests)
API Security
see API security