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Rate Limit

Rate Limit​

Fubon market data provides Web API and Socket, 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.