Snippets

Manage snippets for Square Online sites.

The Snippets API lets you manage snippets that add custom functionality to Square Online sites. A snippet is HTML, CSS, and JavaScript that is injected into the head element of all pages on a site, except for checkout pages. You can use the Snippets API to create applications that help meet the many needs of Square sellers.

Note: Square Online APIs are publicly available as part of an early access program. For more information, see Early access program for Square Online APIs.

For more information, see the following guide:

Snippets

API version2026-08-19

All versions ->

Delete snippet

DELETE/v2/sites/{site_id}/snippet

Removes your snippet from a Square Online site.

Retrieve snippet

GET/v2/sites/{site_id}/snippet

Retrieves your snippet from a Square Online site.

Upsert snippet

POST/v2/sites/{site_id}/snippet

Adds a snippet to a Square Online site or updates the existing snippet on the site.