📄 zaproxy/desktop/addons/dev-add-on

File: dev-add-on.md | Updated: 11/18/2025

Source: https://www.zaproxy.org/docs/desktop/addons/dev-add-on/

Dev Add-On

An add-on to help with development of ZAP. It starts a simple test web service, which by default will be accessible via http://localhost:9091

It provides:

API Pages


Two simple OpenAPI specs, both of which require no authentication. One of the APIs described by the specs can only be accessed when authenticated.

Authentication Pages


A growing set of authentication pages, for use in testing ZAP authentication handling.

CSRF Pages


A set of pages with forms and CSRF tokens that are checked on POST requests.

HTML Pages


A set of pages which store various types of data in localStorage and sessionStorage.

Sequence Pages


A set of pages for testing the sequence add-on.