Cha-ching is a donation register. It records instant payment notification (IPN) data received from PayPal, and makes the metadata (payment amount and date) available via JSON and RSS feeds for display and graphing purposes.

Cha-ching was originally created for Noisebridge, a hackerspace in San Francisco, California.

Additional features will be added in the future. You can support development by contributing or sponsoring.

Project information

Releases

1.0.17 Stable release covered by the Drupal Security Team released 9 January 2026
Works with Drupal: ^10.2 || ^11
Install:

Development version: 1.x-dev updated 10 Mar 2026 at 08:34 UTC