# Introduction Welcome to the documentation for integrating Google Pay™ with Callphone. This guide will walk you through the necessary steps for you to process Google Pay™ transactions seamlessly from your mobile application. ### Supported Card Networks We currently support the following card schemes: * Verve * Visa * MasterCard We support 3DS and pin authentication for local cards. For international cards, 3DS will be coming soon. We support 3DS, no auth and pin authentication. The merchant needs to be PCI-DSS compliant to support no auth. --- # 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://googlepay.airvend.ng/introduction.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.