API Usage Limits
Information about the request calculation algorithm for the REST API is available here[1], along with the details of how you can measure requests remaining or used after every request.
You may accurately check the remaining credits for your API Key through the response headers.
Have in mind that the Metrics tab [2] should be used only for visualization, analytics, and reporting. You should not use it to decide if you are approaching the limit in real-time as the data in this report is aggregated daily, and the request credits in real-time are calculated from the last 24-hour using a sliding time window. You can find more information about real-time limits here[1].
[1] https://docs.coinapi.io/market-data/rest-api#limits [2] https://customerportal.coinapi.io/#rest-usage-get