Notif.me SDK - A Node.js lib to send all your transactional notifications
Pusher Beams - Send push notifications programmatically at scale
Push Notification Preview - A simple tool for previewing push notification copy
Instapush - Instant notifications for transactions that matter.
Ultimate Push Notifications by Ecomfit - Retarget customers and protect abandoned cart to boost sale
CryptoNotify - Receive transaction notifications of any BTC or ETH address