Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer Retell doesn't limit outbound CPS (calls per second) on the API itself [(1) ]() . However, your telephony provider (like Twilio or Telnyx) typically enforces a default limit of 1 call per second, which you can request to increase . For concurrency, Pay-As-You-Go users have a default quota of 20 concurrent calls [(2) ]() .

​ To learn more, see the sources I considered: [[1] What is the rate limit on the API?](https://discord.com/channels/1186424376300679209/1398078450052501597) [[2] Urgent: Incorrect Concurrency Charge and Upcoming Invoice Review](https://community.retellai.com/t/urgent-incorrect-concurrency-charge-and-upcoming-invoice-review/709) ​

### Answer Retell doesn't impose rate limits on the API itself [(1) ]() . Your telephony provider (like Twilio or Telnyx) typically enforces a default limit of 1 call per second (CPS) , which you can request to increase . I don't have specific information about rate limits on the GET call endpoint in the available sources. Check out these potentially useful sources: - [Documentation]() - [Hire certified Retell partner]()

​ To learn more, see the sources I considered: [[1] What is the rate limit on the API?](https://discord.com/channels/1186424376300679209/1398078450052501597) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.