Firewall configuration is required for integrating real-time transactions, including payment authorization, refunds, inquiries, as well as transaction and settlement batch processes through Eximbay. This document is intended for merchants integrating via Open API. For Integration Guide for Legacy Payment Modules, please refer to the additional documentation.

Eximbay's web server is publicly accessible and has no access restrictions.
However, for technical development or testing in environments with limited internet access (e.g., outbound firewall policies), additional configurations may be required for outbound and firewall settings to allow access to the URLs of payment service providers such as Alipay, PayPal, and WeChat