Keyple Selection JSON Specification 1.0 is available!

Calypso Networks Association
Last updated on 2025-03-06 1 min read Documentation

Published on March 06, 2025, this guide describes how to implement early card selection on a non-Keyple terminal before requesting the server to continue the card transaction, as well as the JSON format of the involved data.

For more information, please visit the user guide

Eclipse Keyple OpenSource Middleware API Ticketing Distributed JSON Website