For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
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Integrate your store or platform with Cash App

Accept payments from Cash App, the #1 personal finance app in the US.*

Start your integration here

For sellers

Add Cash App Pay or Cash App Afterpay to your store’s checkout.


Read docs
For payment service providers

Build and maintain your platform’s Cash App Pay integration.


Read docs

Quick access

For sellers:

Migration Information
E-Commerce Quickstart
API Quickstart

For payment service providers:

Integration Basics
Pay Kit
API Integration Quickstart

*Source: Based on mobile app MAUs from SensorTower in 2024