API testing with jmeter "too many attempts error"

Thread Name:Thread Group 1-62 Sample Start:2020-07-14 23:30:42 CDT Load time:721 Connect Time:350 Latency:721 Size in bytes:337 Sent bytes:640 Headers size in bytes:308 Body size in bytes:29 Sample Count:1 Error Count:1 Data type ("text"|"bin"|""):text Response code:429 Response message:Too Many Requests

HTTPSampleResult fields: ContentType: text/html; charset=UTF-8 DataEncoding: UTF-8

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while testing API in jmeter above error code is coming after 60 thread why this is coming and how we can solve this error?

i am using 100 thread in 10 second for loop count 1.