AsyncAPI channel · Infura · Infura (MetaMask Developer) WebSocket Subscription API

`/`

Root WebSocket channel for the selected Infura network. All JSON-RPC requests (`eth_subscribe`, `eth_unsubscribe`, plus any standard Ethereum JSON-RPC method) are sent as text frames on this single connection, and asynchronous `eth_subscription` notifications stream back over the same connection.

Open source AsyncAPI → All Infura channels Infura provider profile

Provider: Infura AsyncAPI: v2.6.0 Spec: Infura (MetaMask Developer) WebSocket Subscription API Operations: 2 Messages: 8

Channel address

/

Operations

publish

sendJsonRpcRequest

Client-to-server JSON-RPC request

receiveJsonRpcFrames

Server-to-client frames (responses and notifications)

Messages

eth_subscribe

Create a new subscription for a particular event.

Content-Type: application/json

eth_unsubscribe

Cancel an existing subscription by its subscription ID.

Content-Type: application/json

eth_subscribe_response

JSON-RPC response containing the newly created subscription ID.

Content-Type: application/json

eth_unsubscribe_response

Boolean flag indicating whether unsubscription succeeded.

Content-Type: application/json

newHeads

Emitted each time a new header is appended to the chain.

Content-Type: application/json

logs

Emitted when matching event logs are included in new blocks.

Content-Type: application/json

newPendingTransactions

Emitted as new transactions enter the pending pool.

Content-Type: application/json

jsonrpc_error

Standard JSON-RPC 2.0 error envelope.

Content-Type: application/json

About AsyncAPI

The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.

Browse every event-driven channel on the APIs.io network or compare with the broader Agent Skill and MCP server surfaces of the same providers.

Work with this as data

Every channel 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 event channels

4 MCP tools reach this

find_channelsBrowse and filter every channel 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 channel

curl "https://apis.io/api/v1/channels/untitled"

All event channels

curl "https://apis.io/api/v1/channels?limit=25"

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

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

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