# GraphQL Subscriptions

**Canonical:** https://apis.io/apis/realtime/graphql-subscriptions/  
**Provider:** Realtime — https://apis.io/providers/realtime/  
**Documentation:** https://spec.graphql.org/October2021/#sec-Subscription

GraphQL Subscriptions is one of 26 APIs that [Realtime](https://apis.io/providers/realtime/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include GraphQL, Subscription, Real-Time, and WebSocket. The published artifact set on APIs.io includes API documentation.

A GraphQL operation type that delivers realtime updates to clients, typically carried over WebSocket using the graphql-ws or legacy graphql-transport-ws protocol, or over SSE using the GraphQL-SSE protocol. Subscriptions are supported by Apollo, Hasura, AWS AppSync, and most production GraphQL servers.

## Machine-readable artifacts (3)

- **Specification** — https://spec.graphql.org/October2021/#sec-Subscription
- **Documentation** — https://the-guild.dev/graphql/ws
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/realtime/refs/heads/main/graphql/realtime-graphql.md

## 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/)
- [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/)
- [Daily](https://apis.io/apis/realtime/daily/)

## Tags

GraphQL, Subscription, Real-Time, WebSocket

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