Streaming · GraphQL Specification

Streaming GraphQL API

The GraphQL operation type for receiving a stream of updates over a long-lived transport (typically WebSocket via the graphql-ws or graphql-transport-ws sub-protocols, or SSE). Used to push schema- defined deltas to clients.

Documentation Endpoint View on GitHub StreamingReal-TimeEvent StreamingChange Data CaptureStream ProcessingServer-Sent EventsWebSocketgRPCGraphQL SubscriptionsKafkaPulsarKinesisFlinkGraphQL

Overview

Streaming GraphQL API is a GraphQL API specification published by Streaming on the APIs.io network.

The GraphQL operation type for receiving a stream of updates over a long-lived transport (typically WebSocket via the graphql-ws or graphql-transport-ws sub-protocols, or SSE). Used to push schema- defined deltas to clients.

documentation is published at https://spec.graphql.org/draft/#sec-Subscription.

The specification includes 2 reference links.

Tagged areas include Streaming, Real-Time, Event Streaming, Change Data Capture, and Stream Processing.

Endpoint

References

Back to Streaming · All GraphQL Specs · GitHub

Work with this as data

Every GraphQL schema here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for graphql

4 MCP tools reach this
  • find_graphqlBrowse and filter every GraphQL schema in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This GraphQL schema
curl "https://apis.io/api/v1/graphql/streaming-graphql"
All graphql
curl "https://apis.io/api/v1/graphql?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.