AsyncAPI channel · Voyant.io · VoyantIO Streaming Knowledge Base

/mcp/sse

Server-sent-events transport that establishes the MCP session. The JSON-RPC transport at /mcp/messages is session-scoped and returns {"error":"Invalid session"} without a session established here. See mcp/voyant-mcp.yml.

Open source AsyncAPI → All Voyant.io channels Voyant.io provider profile
Provider: Voyant.io AsyncAPI: v3.0.0 Spec: VoyantIO Streaming Knowledge Base Messages: 1

Channel address

/mcp/sse

Messages

sseEvent
Server-sent event
Content-Type: text/event-stream

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

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This channel 
curl "https://apis.io/api/v1/channels/mcp-sse"
All event channels 
curl "https://apis.io/api/v1/channels?limit=25"

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