Microtransactions, or small payments often less than a dollar, are becoming increasingly popular in the digital era due to their convenience and flexibility. They can be applied to API usage through pay-as-you-go, prepay, or post-pay methods. However, managing high volumes of microtransactions poses challenges such as tracking accuracy, applying rates, generating invoices, processing payments, answering queries, ensuring compliance, and assuring scalability. Togai's billing platform offers a robust solution to these challenges by simplifying the billing process for API usage, maintaining 99.99% uptime, supporting various pricing strategies, automating workflows, providing detailed analytics, and integrating seamlessly into existing systems.