AsyncAPI channel · Helius · Helius WebSocket APIs

programSubscribe

Subscribe to all account changes owned by a given program.

Open source AsyncAPI → All Helius channels Helius provider profile
Provider: Helius AsyncAPI: v2.6.0 Spec: Helius WebSocket APIs Operations: 2 Messages: 4

Channel address

programSubscribe

Operations

publish
programSubscribe
Open a programSubscribe subscription.
programNotification
Program account notifications.

Messages

programSubscribe
programSubscribe request
Content-Type: application/json
programUnsubscribe
programUnsubscribe request
Content-Type: application/json
jsonRpcResponse
Response to a subscribe / unsubscribe request — carries the subscription id (subscribe) or a boolean (unsubscribe).
Content-Type: application/json
programNotification
programNotification
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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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.
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Call it yourself

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