> For the complete documentation index, see [llms.txt](https://googlepay.airvend.ng/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://googlepay.airvend.ng/introduction.md).

# 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.