Here you can find the source code Magento 2 Plugin of Ivy: sustainability-driven payments. A more detailed integration guide is located here.
Magento 2.3.x Magento 2.4.x
You can install Ivy simply with composer. Here you can find the package.
composer require getivy/magento-2
php bin/magento setup:upgrade
php bin/magento module:enable Esparksinc_IvyPayment
php bin/magento setup:di:compile