Checkbook API Docs

Welcome to Checkbook's API! Just like our product, our API is simple to use and understand.

You'll find comprehensive guides and documentation to help you start working with Checkbook as quickly as possible, as well as support if you get stuck. Let's jump right in!

Guides    API Reference

Create a Marketplace

Facilitate payments within your own marketplace

Marketplaces and platforms use Checkbook’s RESTful API to accept money, pay out to third parties, and onboard businesses and individuals alike. Our white label solution provides a complete set of building blocks to support virtually any business model from mass disbursements to financial service marketplaces.

Onboarding buyers and sellers is made easy by using our API for creating a user, adding a bank account for the user and having the user verify it. The entire user experience is on your website.

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Contact Sales

Easy to use

From user creation to merchant onboarding, we’ve made it easy to get your merchants up and running quickly

More ways to pay

Empower your merchants to send payments using ACH, RTP, VCC, OCT, and more

Protect your merchants

Checkbook’s secure platform provides businesses and consumers with an easier and more secure way to make online payments.

White-label experience

We provide complete control over colors and branding, whether you are using our UI or creating your own

An all-in-one PayFac/Marketplace solution

Marketplaces and platforms can use Checkbook to accept money, pay out to third parties, and onboard businesses and individuals alike. Whether you want to use our all-in-one PayFac/Marketplace dashboard web interface or use our full-feature API, Checkbook offers everything you need to create a scalable PayFac/Marketplace marketplace.

Flexibility and control

We offer customizable APIs that you can leverage to create a robust payments solution that fits your unique marketplace business.

Payments mix

Checkbook offers PayFacs/Marketplaces with various payment methods like virtual cards, ACH, OCT, and paper options in a single integration.
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Manage your users

With Checkbook’s PayFac/Marketplace solution you can onboard and create your own merchant accounts with a single click or API call.


Enter your customers information at the time of creation or send a link to allow your user to onboard themselves.
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Marketplace Examples

Whether you're a marketplace for landlords, freelancers or gig economy workers or building an accounting platform, Checkbook has the solution for you. Here are some examples:

  • Property Management Software
  • Online Rent Payment Service
  • Accounting and Payroll Software

Updated 9 days ago

Create a Marketplace

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