eCheck Processing API Guide

In the world of digital payments, seamless integrations are crucial to achieving success. Our eCheck Processing API Guide is designed to empower developers like you, providing the tools and resources you need to thrive in the ever-evolving payment industry.

Whether you're looking to process one-time payments, set up recurring billing, or enable ACH transfers, our eCheck Processing API opens up a world of possibilities for your payment solutions.

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This endpoint allows for a merchant to create an eCheck. Each eCheck is identified by an ID which can be used to update the payment or retrieve the status.


Checkout.js is a user-friendly JavaScript application that seamlessly integrates into your checkout page. It equips you with all the necessary tools to securely gather your customer's bank account information and effortlessly send it to Seamlesschex for efficient processing. With Checkout.js, you can ensure a smooth and secure payment experience for your customers, enhancing trust and confidence in your payment handling capabilities.

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At SeamlessChex, we prioritize payment security. With robust verification measures, every transaction is verified. Plus, we offer  Enhanced Verification, powered by Plaid, which ensures real-time funds confirmation for added accuracy and reliability.

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