# Non-authenticated payment ## What is a non-authenticated payment? Non-authenticated payment refers to a payment method that pre-registers the credit card information and requests a payment on the card without payer's authentication. {% hint style="info" %} Although non-authenticated payments provides a simple way of making a payment without the payer's authentication, proceeding without payer authentication increases the likelihood of security issues during service operation. Hence, there are **stringent requirements for applying to use a PG** for non-authenticated payments. {% endhint %} ### 1. Billing key payment > **Making "recurring" payments using pre-registered payment information** For Netflix or Apple Music subscription service, use this method to automatically make monthly payments after entering the credit card information for the first month. ### 2. Key-in payment > **Making payments by entering the credit card information without payer authentication (one-time payment)** Key-in (manual input) payment is where a payment is processed without going through an authentication step by simply entering the credit card information. Since this is a one-time payment process and card information is not stored, you must enter your card information every time you make a payment. --- # 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://portone.gitbook.io/docs-en/auth/guide-1.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.