What must Mastercard Send participants do before utilizing the APIs?

Before utilizing the Mastercard Send APIs, participants must establish a settlement account. This requirement ensures that there is a formal financial infrastructure in place to handle the transactions processed via the APIs. The settlement account facilitates the transactional flow of funds, allowing for the posting, clearing, and settlement of payments effectively.

Without a proper settlement account, participants would face challenges in managing the monetary aspects of sending and receiving funds efficiently. This foundational step is crucial for any payment service to function correctly, as it supports the financial transactions that the APIs will manage. By establishing a settlement account, participants also align with Mastercard's operational and regulatory requirements, ensuring compliance and a seamless payment experience.