Pushover
Pushover is a simple push notification service that delivers real-time notifications to phones, tablets, desktops, and watches from servers, scripts, and applications. The Pushover Message API accepts HTTPS POSTs with an application token and user/group key to send formatted messages with priorities, sounds, images, and supplementary URLs. Additional APIs exist for groups, subscriptions, licensing, receipts, and Open Client.
APIs
Pushover Message API
REST API for sending push notifications to Pushover users and groups via HTTPS POSTs to /1/messages.json. Authentication is token-based, requiring an application API token and r...
Pushover Open Client API
Real-time client API for Pushover. Combines a WebSocket channel at wss://client.pushover.net/push that streams single-byte control frames (`#` keepalive, `!` new message, `R` re...