SHKeeper

SHKeeper is an open-source, self-hosted cryptocurrency payment gateway that allows businesses to accept various cryptocurrencies directly. It provides an API for integration with e-commerce platforms and custom code, enabling invoice creation, transaction tracking, and automated callbacks for payment processing.

SHKeeper is a self-hosted and open-source cryptocurrency payment gateway processor. It explicitly states its core function is to accept payments in various cryptocurrencies, which aligns with 'payment-processing'. The documentation heavily features API endpoints for invoice creation, retrieving addresses, and transactions, directly supporting 'developer-api-integration'. It also lists 'Multi-currency' and 'Direct crypto payments' as features, covering 'multi-currency-support' and 'global-payment-methods'. The 'Receiving callback' section details how SHKeeper sends notifications upon receiving transactions, which is a 'webhook-event-system'.