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

# Intro to BanQ

## Merchant and services

After verification, merchant can create multiple services with their own config.

## Invoice and payment

Invoice (with specified or any amount) can be created for service to receive payment from end users. Once the payment is completed, merchant will be notified via webhook call.

## Withdrawal

Merchant can create withdrawal for end user of the service. The crypto tokens will be paid from the service corresponding hot wallet. Once the withdrawal is completed, merchant will be notified via webhook call.

## Supported blockchains and tokens

<table data-full-width="false"><thead><tr><th width="195">Token \ Blockchain</th><th width="234">BNB Smart Chain Mainnet</th><th width="166">Polygon Mainnet</th><th>TRON Mainnet</th></tr></thead><tbody><tr><td>USDT<br>(Tether USD)</td><td><a href="https://bscscan.com/token/0x55d398326f99059ff775485246999027b3197955">0x55d398326f99059fF775485246999027B3197955</a></td><td><a href="https://polygonscan.com/token/0xc2132d05d31c914a87c6611c10748aeb04b58e8f">0xc2132d05d31c914a87c6611c10748aeb04b58e8f</a></td><td><a href="https://tronscan.org/#/token20/TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t">TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t</a></td></tr></tbody></table>