This module provides a Drupal Commerce 2.x payment plugin for BTCPay Server. This allows you to accept cryptocurrencies without a 3rd party intermediary by becoming your own payment processor.

Visit the project page on Drupal.org

A Drupal Commerce demo store connected with a (testnet) BTCPay Server where you can try the checkout (Bitcoin + Lightning Network) can be found here:
http://drupal.demo.btcpay.tech

• BTCPay Server (self hosted or 3rd party or quick start with a testserver )
• Drupal Commerce 2.x installed (installation guide)
• Drupal: configured and writable private file system

Short walkthrough screencast on installing and configuring the module: https://youtu.be/XBZwyC2v48s

1. BTCPay server: create and configure a store
2. in store settings go to "Access Tokens"
3. click on [Create a new token]
4. Label: enter some label (eg. my store)
5. Public key: this needs to be left empty
6. Facade: "merchant"
7. click on [Request pairing]
8. on next screen choose your configured store in** Pair to** select dropdown and click on [approve]
9. note down the displayed 7-digit code at the top status message, e.g. "d7afaXr"
   (you will need that code below on gateway configuration, see below)

1. install module: composer require drupal/commerce_btcpay
2. enable the module: drush en commerce_btcpay -y
3. make sure you have configured private file system (needed to store encrypted public+private key)
4. Commerce BTCPay configuration (Commerce -> Configuration -> Payment -> Payment gateways):
5. add payment method "BTCPay"
   • Mode: Test or Live (you can configure both individually)
   • Test/Live server host: enter your URL without https:// prefix e.g. btcpay.yourserver.com (note valid SSL certificate needed)
   • Test/Live Paring code: enter the 7-digit pairing code from BTCPay "Access tokens" page
   • Save
     You should see a message that the tokens were successfully created.

This module is currently in alpha stage and under active development.
Releases will be made available through the project page on drupal.org https://drupal.org/project/commerce_btcpay

Short excerpt from their project page:

BTCPay Server is an Open Source payment processor, written in C#, that conforms to the invoice API of Bitpay. This allows easy migration of your code base to your own, self-hosted payment processor.

This solution is for you if:

• You are currently using Bitpay as a payment processor but are worried about their commitment to Bitcoin in the future
• You want to be in control of your own funds Bitpay compliance team decided to reject your application
• You want lower fees (we support Segwit)

To get a full overview check out their great documentation.

BTCPay supports a vast variety of cryptocurrencies:

• BTC (Bitcoin)
• LTC (Litecoin)
• 2nd layer Lightning Network for instant micro-transactions (BTC + LTC)
• some altcoins using full node integration
• or most other major altcoins using Changelly for conversion

BTCPay was created to be a alternative to 3rd party payment provider BitPay. Therefore BTCPay is invoice API compatible and you can use this payment plugin also with the official BitPay API and sites if you want. But the power of BTCPay is that you can become your own payment provider.