Introduction

Documentation | Checkbook

Get started with Sandbox,
Go live instantly

Applications should be built and tested against the Sandbox environment before being used in production.

Explore our Documentation

Single API Call

A single API for multiple payment options With a single API call you can choose do ACH, RTP, Push to Card, Virtual Card, Check21, Mailed Check

Find out more >

Demo without Signing Up

Demo our application, without the hassle of signing up

Try our demo >

No/Low Code option available

Not a coder? Not a problem! Check out our User guide to get started!

Learn more >

Core API Basics

Welcome

This section gives you the basics on how to get started. It will tell you about Authorization standard for calling our API, our test and production environments, error codes, Idempotency, webhooks and payment statuses

Learn more >

Sandbox

Here we tell you all about testing in sandbox i.e. test mode. We've made it super simple for you to test out our entire API - check it out!

Learn more >

Payments API

These APIs are are basic building blocks of sending and/or receiving payments. You can check out different payment rails, different types of payments e.g. single payments, multi-party payments, subscriptions. Have at it

Learn more >

Common API

If you're planning to enhanced stuff like creating a PayFac/Marketplace or adding multiple bank accounts for sending payments, this is where you'll find those endpoints. Could be a lot of fun depending how you use them

Learn more >

PayFac API

Ah, so you want to setup your own PayFac/Marketplace solution? Completely white-labelled? This the section you need to explore. Of course you'll to refer back to PAYMENTS API or COMMON API for making payment and/or user or bank account calls

Learn more >

Integrations

We have some pre-built integrations for you. No need to try our API, we've already done it for you. Install the plugin with few simple clicks, watch the video and you're on your way

Learn more >

UI/UX Settings

This is an important section. Don't gloss over it. If you're looking to customize settings, either for the sender or the recipient of the payment this is where you'll find it

Learn more >

API Reference

The entire list of API endpoints, sorted and laid out. Just for you. Enjoy!

Learn more >