Payoneer Integration

I am working on the salesforce platform and there is no payoneer integration in salesforce directly. So my company decides to use payoneer API to send and receive payments. So I am doing a lot of searching on payoneer API and couldn't find anything helpful except payoneer sandbox and payoneer Escrow. Now the issue is the login of payoneer sandbox is provided by payoneer company and I emailed them and for Escrow service can't find anything on payoneer platform.

Please anyone know anything about payoneer API please help me. I would appreciate your answer.