📍 Bolt Help / Core Products / Checkout / Custom Cart Checkout

Custom Cart Checkout

Create a custom integration for Bolt Checkout from scratch using both the Bolt and Merchant Callback API.

Custom Cart Guide Chapters

What is Bolt?
Learn about the main components of Bolt that handle checkouts.
How Bolt Interacts
Learn how the Bolt API, Merchant Callback API, and webhooks process delivery options, tax calculations, and more.
Bolt Checkout Direct API Integration Guide
Learn the basics of setting up a direct API integration using our PHP library.
12 articles
How to Configure Checkout Analytics Using Callbacks
Learn how to map Google Analytics and Facebook Pixel to steps in your checkout.
How to Configure Checkout Analytics Using Callbacks
Learn how to map Google Analytics and Facebook Pixel to steps in your checkout.
Set Up SSO Commerce For Custom API Integrations
Learn how to set up SSO Commerce on a Custom Cart store.
Set Up Cart-Based Product Add-Ons
Integrate your own upsell engine with Bolt's Checkout to deliver product upsells to your shoppers as they check out, based on what is in their cart and more.
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