AsyncAPI channel · Financial Modeling Prep · Financial Modeling Prep WebSocket API

/

Single duplex channel: send login/subscribe/unsubscribe events, receive login confirmations, quote updates, and heartbeats.

Open source AsyncAPI → All Financial Modeling Prep channels Financial Modeling Prep provider profile
Provider: Financial Modeling Prep AsyncAPI: v3.0.0 Spec: Financial Modeling Prep WebSocket API Operations: 5 Messages: 6

Channel address

/

Operations

send
sendLogin
Authenticate the session by sending your API key in a login event.
send
sendSubscribe
Subscribe to live price updates for tickers, or to a predefined market stream.
send
sendUnsubscribe
Stop receiving updates for a ticker or market stream.
receive
receiveQuote
Receive real-time quote updates for subscribed tickers/streams.
receive
receiveHeartbeat
Regular heartbeat events signal an active connection; use to auto-reconnect.

Messages

login
Authenticate with API key
Content-Type:
subscribe
Subscribe to tickers (tickers) or a market stream (stream)
Content-Type:
unsubscribe
Unsubscribe a ticker or market stream
Content-Type:
loginResponse
Login confirmation
Content-Type:
quote
Real-time quote update
Content-Type:
heartbeat
Connection heartbeat
Content-Type:

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

curl for this page
This channel 
curl "https://apis.io/api/v1/channels/stream"
All event channels 
curl "https://apis.io/api/v1/channels?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.