flexEngage API Documentation

Learn more about each of our available APIs:

• Receipts API - Our Receipts API can be used to power receipt notifications and dynamic printed offers for In-Store transactions.
• Webhooks API - Webhooks allow your systems to receive events that happen within the flexEngage platform as they occur. Learn how to setup your own webhooks.
• Email Validation API - The primary purpose of the Email Validation API is to validate one or many email addresses in real time.

Integration Guides

• Receipts API Integration Guide - How to integrate a Point of Sale system with the Receipts API: authentication, the request/response flow, error handling, printed offers, SMS receipts, and a testing checklist.