Rate Limit

Key takeaways

This page lists Web API and WebSocket rate limits for Fubon Neo API Futures Market Data.
Exceeding limits returns 429 or WebSocket subscription errors.
Rapid connection bursts may be blocked.

Item	Limit
Intraday	300 / min
Snapshot	300 / min
Historical	60 / min
WebSocket	200 subscriptions; 5 connections

Fubon Neo API Futures Market Data provides Web API and WebSocket with the following access restrictions.

Intraday : 300 / min
WebSocket : 200 Subscription；5 Connection
Snapshot : 300 / min
Historical : 60 / min

If your API requests exceed the limit, you will receive a response with status code 429. Please wait for 1 minute before making additional requests.

{"statusCode":429,"message":"Rate limit exceeded"}  

If your WebSocket subscriptions exceed the upper limit, you will receive the following message:"

{
  "event": "error",
  "data": {
    "code": 1001,
    "message": "Maximum number of connections reached"
  }
}

caution

If a large number of Socket connections are established within a short period, the system will consider it a malicious attack and block your connection requests (404 Not Found error). If you encounter this situation, please contact pm.trading.sec@fubon.com.

Rate Limit​

Rate Limit