> For the complete documentation index, see [llms.txt](https://intella2.gitbook.io/scan2pay/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://intella2.gitbook.io/scan2pay/master.md).

# Scan2Pay API

## **About Scan2Pay**

Scan2Pay is a platform providing payment gateway services. Integrating diversified payment methods (eg. third-party payment, credit card, and e-ticket etc.) to a one-stop platform, allowing merchants to adopt these payments with a simple and efficient approach. Scan2Pay can be widely applied in payment transactions for stores/shops, POS systems, vending machines/kiosks, e-commerce, and other online applications.<br>

## **Start using Scan2Pay API**

1. To begin, contact intella to obtain the following information:

* merchant id and passwords
* API server URL
* RSA public key, AES IV

&#x20;  2\. For e-ticket reader, please contact intella sales department.

&#x20;  3\. Please note there are 3 sets of passwords for Scan2Pay system:

* **Merchant password**: for accessing merchant admin system
* **Trade Key**: a mandatory field for all Scan2Pay APIs
* **Refund Key**: a mandatory field for calling refund API

&#x20;   **\*Merchant password** and **Refund Key** can be changed on merchant admin system.<br>