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BILL API Platform

Integrate. Automate. Scale. All with the BILL API Platform.

Untangle system complexities by integrating BILL’s financial capabilities into your systems. Customize, automate, and control financial workflows with scalable APIs.

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Own your financial workflows with the right
API integration

Integrate payments, real-time data, and spend management to transform your financial operations into a high-efficiency powerhouse.

Cut manual work with an accounts payable API

Automate repetitive manual tasks, process high-volume payments in a snap, and keep your data synced.

A code snippet with a cURL command overlaid with a "Pay Bill" app interface displaying payment options.

Kick cash flow hurdles to the curb with an invoicing and payment API

Automate invoicing, track payments, and let customers pay online with API-enabled checkout experiences.

An app interface showing an unpaid invoice of $2,500. Payment is processing, with a notification of "new payment received".

Take charge with a card and expense management API built for growth

Get real-time insights and manage users, budgets, cards,* and workflows at scale—all while controlling spend.

A BILL Divvy ard with the Visa logo overlays a blurred office scene with lines of code set to the right.

Key API use cases

Automate
payments

Easily create, track, and manage payments for smooth and reliable transactions.

Payments API

Vendor
management

Access and manage vendor information to maintain vendor records.

Vendors API

Invoicing and
payment collection

Create, manage, and send invoices to simplify payment collection.

Invoices API

Scale budget management

Manage budgets at scale by creating, updating, and assigning them to ensure control and financial visibility.

Budgets API

Flexible card management

Issue, update, and manage virtual cards* to control spending and enhance expense visibility.

Cards API

Streamlined accounting

Maintain an accurate and organized chart of accounts to ensure clear financial oversight and control.

Chart of Accounts API

How customers are using the BILL API Platform

How customers are using the BILL API Platform

“It only took two days to get everything up and running, and we sent it out to our customers, immediately saving them hours every month closing the books and giving them the benefit of both cash and accrual books—making founders and bookkeepers very, very happy."
Sasha Orloff
Co-founder and CEO
Puzzle
Read Customer Story
“With the BILL API, we’ve automated everything from reporting to payments—saving the Utah Jazz hours of work each week. We’re now integrated across systems, and our financial operations are more streamlined across our organizations."
Nathan Kenyon
SVP of Business Analytics
Utah Jazz
“With the BILL API Platform, now payments are done in minutes, not hours. It's like we suddenly found a whole extra day every couple of weeks. Game-changer doesn't even cover it."
Christine Hernandez
Owner
First Crush Tastings
Read Customer Story

Frequently asked questions

BILL currently offers the v3 API. You can leverage our API to integrate your applications with BILL Accounts Payable (AP), BILL Accounts Receivable (AR) and BILL Spend & Expense’s automation and payment capabilities. With the BILL API platform, we have upgraded a wide range of BILL AP, AR, and Spend & Expense features. Learn more about our v3 API here.

BILL currently offers the v3 API. You can leverage our API to integrate your applications with BILL Accounts Payable (AP), BILL Accounts Receivable (AR) and BILL Spend & Expense’s automation and payment capabilities. With the BILL API platform, we have upgraded a wide range of BILL AP, AR, and Spend & Expense features. Learn more about our v3 API here.

You can find more information about BILL’s API on our developer site. You can also find standard workflows in our recipes.

You can find more information about BILL’s API on our developer site. You can also find standard workflows in our recipes.

You can find the documentation for the v3 API login here. To access the BILL Spend & Expense API, check the authentication guide to generate a token.

You can find the documentation for the v3 API login here. To access the BILL Spend & Expense API, check the authentication guide to generate a token.

The BILL API is free to use. If you’re interested in our BILL Accounts Payable, BILL Accounts Receivable, or BILL Spend & Expense products, pricing and plan information can be found here.

The BILL API is free to use. If you’re interested in our BILL Accounts Payable, BILL Accounts Receivable, or BILL Spend & Expense products, pricing and plan information can be found here.

Please click the assistant button at lower right and our team is happy to help.

Please click the assistant button at lower right and our team is happy to help.

*The BILL Divvy Card may be issued by one of Divvy Pay, LLC’s bank partners.
The BILL Divvy Card is not a deposit product. For your specific lender, see your Card Agreement.