# Authentication ## How to Authenticate You have two options when logging into Zapp. You can authenticate via your ZAP-POST username and password or via your existing SMARTSlip account.

If you wish to log in via your SMARTSlip account, you will be redirected to the SMARTSlip login page. You can then provide your username and password and will be automatically returned to the ZAPP. ## Password Reset If you have forgotten your password, you can reset it using the link below the login area on . \ Alternatively, you can visit: --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://userguide.zappost.com/zap-post-web-app/zap-post-user-guide/zapp/authentication.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.