Snippets API

Build powerful eCommerce tools.

Introducing the new API just for Square Online. Now you can create custom add-ons that sellers can add to their online sites.

Expand your reach.

Thousands of merchants sign up for Square Online every day to start selling in more ways. Now you can help them.

sq-online gb-en v2

sq-online seller v3

Over a million sellers have signed up for Square Online.

It’s so simple.

Snippets API inserts your Javascript, HTML or CSS into Square Online with a simple POST request. Sellers can install it as an add-on for their websites.

Imagine the possibilities.

Sellers can improve their online stores by installing your app as an add-on with just a few clicks.

Empower sellers to do more:

  • Chatbots
  • Pop-ups
  • Social proof
  • SEO tools
  • Social widgets
  • Special promos
  • Newsletter sign-ups
  • Floating nav
  • Product reviews

Get your add-on discovered.

As a Square App Partner, you can market and monetise your app to sellers in the App Marketplace. When your app is ready, apply to become a partner.


Start building your add-ons today.