# Introduction

This document describes the resources available to promote RentalCover insurance products on a partner’s website. The endpoint documentation is supplemented with information regarding [Non-API functions](https://partner-docs.covergenius.com/rental-cover/non-api-functions), which outline customizations required for implementation, particularly on the front end.

The RentalCover API adheres to the principles of REST. It has predictable, resource-oriented URLs, and uses HTTP response codes to indicate errors.