At first, I thought that my API key was somehow compromised. However, when I checked the API usage in my account, the number appeared normal, with only 190 requests in the past 4 weeks. Meanwhile, in the "Your Request History" section of the API Reference Documentation, there are thousands of requests in 30 days, including some endpoints that I don't even use. So I'm not sure whose requests are being displayed there because I'm certain they are not from my end. I think further investigation is needed to clear the confusion.