# Apple Push Notification Service (APNs)

**Canonical:** https://apis.io/apis/realtime/apple-push-notification-service/  
**Provider:** Realtime — https://apis.io/providers/realtime/  
**Documentation:** https://developer.apple.com/documentation/usernotifications

Apple Push Notification Service (APNs) is one of 26 APIs that [Realtime](https://apis.io/providers/realtime/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Push Notifications, Apple, iOS, HTTP/2, and Provider. The published artifact set on APIs.io includes API documentation.

Apple's push notification system for iOS, iPadOS, macOS, tvOS, watchOS, and visionOS. APNs uses an HTTP/2-based provider API with token-based or certificate-based authentication for server-to-Apple delivery, and a persistent device connection for Apple-to-device delivery.

## Machine-readable artifacts (2)

- **Portal** — https://developer.apple.com/documentation/usernotifications
- **Documentation** — https://developer.apple.com/documentation/usernotifications/sending-notification-requests-to-apns

## Other Realtime APIs (12)

- [WebSocket](https://apis.io/apis/realtime/websocket/)
- [Server-Sent Events (SSE)](https://apis.io/apis/realtime/server-sent-events/)
- [WebRTC](https://apis.io/apis/realtime/webrtc/)
- [MQTT](https://apis.io/apis/realtime/mqtt/)
- [CoAP](https://apis.io/apis/realtime/coap/)
- [gRPC Streaming](https://apis.io/apis/realtime/grpc-streaming/)
- [GraphQL Subscriptions](https://apis.io/apis/realtime/graphql-subscriptions/)
- [WebTransport](https://apis.io/apis/realtime/webtransport/)
- [Ably](https://apis.io/apis/realtime/ably/)
- [PubNub](https://apis.io/apis/realtime/pubnub/)
- [Pusher](https://apis.io/apis/realtime/pusher/)
- [LiveKit](https://apis.io/apis/realtime/livekit/)

## Tags

Push Notifications, Apple, iOS, HTTP/2, Provider

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/realtime/apple-push-notification-service/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/realtime/.