Java documentation Library link in Maven Central Maven dependency <dependency> <groupId>io.github.nazarovctrl</groupId> <artifactId>payme-merchant-api</artifactId> <version>1.0.2-beta</version> </dependency> Usage https://github.com/nazarovctrl/payme-merchant-api/how-to-use (how to use library) Examples https://github.com/nazarovctrl/payme-merchant-api/EXAMPLES.md