SDKs
Our SDKs consist of lightweight libraries designed to securely collect payment option details. This approach maintains SAQ-A compliance while enabling you to build future-proof web or mobile experiences that seamlessly integrate your corporate identity with the required payment functionalities. Additionally, these libraries offer ancillary functions to simplify integration. The following sections provide technical guidance to enable these capabilities.
Get the Latest SDK Version
Periodic updates are released for the web and mobile SDKs, which may include new functionality, bug fixes, and security enhancements. Update the integrated SDK versions to the latest release as soon as they become available.
Mobile SDKs enable the native integration of various payment options in iOS and Android apps.
KC Web SDK is designed for browser-based integrations, and it is compatible with mobile devices.
KC UPCF Web SDK serves the same purpose but is required for specific web checkout scenarios, including usage on mobile devices. It is mandatory for integrating certain payment methods such as Apple Pay and Google Pay™.
If you're unsure which SDK to use for your integration, please contact your Product Solution Specialist.
KC Web SDK
The Web SDK release number matches the corresponding KontoCloud release version, ensuring compatibility between SDK updates and core platform functionalities.
KC Web SDK 9.6: Latest Release v9.6 (Online Docs) [Published on 3 June 2025]
Legacy credit card payment providers have been removed.
Optional support for Subresource Integrity (SRI) has been added to enhance script verification in line with PCI DSS v4.0.
KC Web SDK 9.1: Latest Release v9.1 (Online Docs) [Published on 20 June 2024]
Legacy credit card payment providers have been removed.
iOS
iOS KC Web SDK v9.2: Latest Release v9.2 (PDF Docs) [Published on 25 November 2024]
Minimum Supported iOS version: iOS 11
Android
Android KC Web SDK v9.2: Latest Release v9.2 (PDF Docs) [Published on 25 November 2024]
Minimum Supported Android version: Android 7, Nougat(N) (API level 24)
Software License
The latest version of the KC Web SDKs can be downloaded from the following links and are available under the terms of the Apache-2.0 License.
Copyright 2017-2025 J.P. Morgan Mobility Payments Systems GmbH