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Rate Limits

Order Entry Limits

The FIX Order Entry API rate limit is 50 requests per rolling second per session and up to 100 messages per second in bursts.


Rolling second: the clock starts when the first command is sent. We use a lazy-fill token bucket implementation.

A maximum of 7 connections can be established per profile. See FIX Best Practices

Market Data Limits

The FIX Market Data API is limited to a single connection per API key. It does not use FIX order entry rate limits (connections, rps, burst rps).

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