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 Naftiko capability, Agent Skill, and MCP server surfaces of the same providers.