Hi TingL1015, assuming you are using Microsoft Graph APIs for Microsoft Defender Threat Intelligence; there are some limits for sure:
Follow the article:
https://learn.microsoft.com/en-us/graph/throttling
https://learn.microsoft.com/en-us/graph/throttling-limits
Requests per Minute (RPM): The API limits the number of requests that can be made per minute. For example, some services within Microsoft Graph allow up to 130,000 requests per 10 seconds1.
Tokens per Minute (TPM): While specific token limits per minute are not always detailed, the API does have mechanisms to manage high-volume usage and prevent overuse.
Output Tokens: The maximum number of output tokens per response can vary depending on the specific API and configuration. Generally, the maximum response length is around 4096 output tokens2.