Payments Widget plugin for Shopify, Woo Commerce, Magento, PrestaShop, or WebFlow

[MantisClone]

Reference:

• https://shopify.dev/docs/apps/launch/app-requirements-checklist#a-requirements-for-third-party-payments-apps
• https://woocommerce.com/document/marketplace-overview/
• https://university.webflow.com/integrations-type/payment-processing