Can you please provide me with your use case so that I can provide your with further assistance? Visa does have APIs for TCP connection.
Please check our website for specific APIs relevant to your business case. https://developer.visa.com/
Please follow the steps in the “Working with Visa APIs” link below to register and create a Visa Developer application.
This guide walks you through the key steps for application creation, credentials, and connection validation.
If you are ready after testing your App in sandbox, send us a production request and we will evaluate your Application and other credentials.
I am working on a Prove of Concept project for payment, we have high throughput and low latency requirement, thus we would like using TCP/IP connection with ISO8583 as communication protocal. I have created a project and selected CyberSource Payments as API, but I only see REST API.
If you are a developer testing on v1 CyberSource APIs then this version was recently deprecated. You will need to move to v2 CyberSource APIs going forward. I have provided the link to the v2 Cybersource APIs below.
Cybersource Payments REST API
We have an expert team that manages questions specific to CyberSource. Please reach out to the CyberSource team directly.
Per your use case, CyberSource Payments will still be a good fit. Please call CyberSource Support directly for further assistance.
This is a must read for you. Applications are designed to use either the UDPor TCP transport layer protocol depending on the type of connection they require.