AsyncAPI channel · Chainstack · Chainstack RPC WebSocket APIs

base/eth_subscribe/pendingLogs

Subscribe to event logs emitted by pre-confirmed Flashblock transactions on Base. Delivered roughly every 200 ms over WebSocket and filtered by address/topics.

Open source AsyncAPI → All Chainstack channels Chainstack provider profile
Provider: Chainstack AsyncAPI: v2.6.0 Spec: Chainstack RPC WebSocket APIs Operations: 2 Messages: 2

Channel address

base/eth_subscribe/pendingLogs

Operations

publish
baseSubscribePendingLogs
Subscribe to pendingLogs on Base
basePendingLogsNotification
Receive Base pendingLogs notifications

Messages

baseSubscribePendingLogs
Subscribe to event logs from pre-confirmed Flashblock transactions on Base.
Content-Type: application/json
ethSubscriptionLog
Push notification carrying an event log.
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.

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