The open-source communication infrastructure for agents and products
Send push notifications to your phone or desktop using PUT/POST
The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cryptography Ready.
Apprise - Push Notifications that work with just about every platform!
Free implementation of Play Services
🔥 A well-tested feature-rich modular Firebase implementation for React Native. Supports both iOS & Android platforms for all Firebase services.
Bark is an iOS App which allows you to push custom notifications to your iPhone
Firebase SDK for Apple App Development
⚓️ Easily test HTTP webhooks with this handy tool that displays requests instantly.
Countly is a privacy-first, AI-powered analytics and engagement platform for understanding and optimizing customer journeys across digital applications, from desktop and mobile to IoT and connected environments.
Backend of Bark
Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨
Free Chat SDK (IM SDK) — 1,000 MAU/month free forever with push notifications & no concurrency limits. Build in-app messaging with chat API, UIKit & send message. Supports Android, iOS, Flutter, Web, React Native, uni-app, HarmonyOS & more.
Send push notifications to mobile devices through GCM or APNS in Django.
A Java library for sending APNs (iOS/macOS/Safari) push notifications
OneSignal makes engaging customers simple and is the fastest, most reliable service to send push notifications, in-app messages, SMS, and emails. This plugin makes it easy to integrate your React Native app with OneSignal. https://onesignal.com
Push notification server for APNs, FCM and Web Push, written in Go.
A lightweight REST framework that wraps the Apprise Notification Library
📱HTTP/2 Apple Push Notification Service built with swift - send push notifications to iOS, iPadOS, tvOS, macOS, watchOS, visionOS, and Safari!
FCM Django: Send push notifications via django to websites, iOS & android mobile devices through FCM (Firebase Cloud Messaging)
Countly Digital Analytics Android SDK
OneSignal makes engaging customers simple and is the fastest, most reliable service to send push notifications, in-app messages, SMS, and emails. This plugin makes it easy to integrate your Fluter app with OneSignal. https://onesignal.com
OneSignal makes engaging customers simple and is the fastest, most reliable service to send push notifications, in-app messages, SMS, and emails. This plugin makes it easy to integrate your native Android or Amazon app with OneSignal. https://onesignal.com
Countly Digital Analytics iOS SDK with macOS, watchOS and tvOS support.
Native iOS agent console for herdr — watch and drive the coding agents on your machines over SSH, with a real libghostty terminal, QR pairing, and push notifications when an agent needs you
🔭 Powerful tool for testing WebHooks and more
OneSignal makes engaging customers simple and is the fastest, most reliable service to send push notifications, in-app messages, SMS, and emails. This plugin makes it easy to integrate your native iOS app with OneSignal. https://onesignal.com
The open source notification orchestration layer
Self-hosted Web Push on a Cloudflare Worker: iOS and macOS notifications with no server to keep alive, no vendor, and no native app. Safari only, via Declarative Web Push.
Remote notifications for the Pi coding agent — Pushover, ntfy, and webhooks when tasks finish or need your input.
FCMFix ColorOS:修复国行 ColorOS 16 / 17 拦截 Google FCM 推送的 LSPosed 模块(Root + LSPosed)
DSH notification & remote-control plane: 28 outbound channels, 6 inbound controls, Native Notify & Control UI, live hot-apply, zero runtime deps.
Drag and drop photos, videos, Live Photos, contacts, apps, push notifications and links into the iOS Simulator. A native macOS app for xcrun simctl that brings back the drag and drop Xcode 27's Device Hub removed.