AsyncAPI channel · Chainstack
· Chainstack RPC WebSocket APIs
polygon/eth_subscribe/newHeads
Subscribe to new Polygon PoS block headers via WebSocket.
Channel address
polygon/eth_subscribe/newHeads
Operations
publish
polygonSubscribeNewHeads
Subscribe to newHeads on Polygon
subscribe
polygonNewHeadsNotification
Receive Polygon newHeads notifications
Messages
ethSubscribeNewHeads
JSON-RPC 2.0 request to subscribe to new block headers.
Content-Type:
application/jsonethSubscriptionNewHeads
Push notification carrying a new block header.
Content-Type:
application/jsonAbout 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.