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Access tiers

TierReadWrite
Basic20 per second10 per second
Advanced30 per second30 per second
Premier100 per second100 per second
Prime400 per second400 per second
Qualification for tiers:
  • Basic: Completing signup
  • Advanced: Completing https://kalshi.typeform.com/advanced-api
  • Premier: 3.75% of exchange traded volume in a given month
  • Prime: 7.5% of exchange traded volume in a given month
In addition to the volume targets, technical competency is a requirement for Premier/Prime access. Before providing access to the Premier/Prime tiers, the Exchange will establish that the trader/trading entity has the following requirements met:
  • Knowledge of common security practices for API usage
  • Proficiency in setting up monitoring for API usage, and ability to monitor API usage in near real-time
  • Understanding and implementation of rate limiting and throttling mechanisms imposed by the API, and the ability to self-limit load
  • Awareness of legal and compliance aspects related to API usage
Only the following APIs fall under the write limit, for the batch APIs, each item in the batch is considered 1 transaction with the sole exception of BatchCancelOrders, where each cancel counts as 0.2 transactions:
We reserve the right to downgrade your API rate limit tier from Prime and Premier when you have shown lack of activity in the previous period.
At any time, any Member that uses FIX or is at the highest possible API tier is eligible for an upgrade to its rate limit upon demonstration that such a tier is necessary for its bona fide market activity.