Rate Limits

Currently there is no fixed rate limit for http requests. The only limit currently imposed is to have no more than 8 simultaneous requests in the pipeline of the exchange. Due to an average latency of less than 1ms, the average trade bot will not have any problems with limitations. For market makers that need even less restricted access, please contact support. (for example if you need to be able to place or cancel 200 orders per second)

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Timing
REST API