Welcome to the Payflow .NET and Java SDKs.
The SDKs are now opened-sourced with the newest code; version 5, located in the corresponding directories. Please review the README and CHANGELOG in each directory for more information.

Important Note: The source code is based on v5 of the SDKs and there have been changes that prevent it from being backwards compatible with the existing v4 SDKs. Please review the CHANGELOG in the corresponding directory for more details.

The files in the SDK Binaries folder are the last builds of the v4 branch, but do not include all the newest NVPs. All new NVPs and all further changes will on the v5 branch.

See the Payflow Gateway Developer's Guide for more info.

For information on changes to the Payflow Gateway, see New Features and Revision History.

Any questions or issues with these SDKs, please send open an ISSUE or you can email DL-PayPal-Payflow-SDK@paypal.com.

Code released under SDK LICENSE