Attempting to apply Coasean logic to daily life (Ronald Coase)

not sure if they qualify all your requirements but i'd go with Kaiko , they are the best when it comes to CEX data , then probably Coinglass.

This is the endpoint you are looking for 
https://docs.kaiko.com/#asset-metrics

Yeah CEX data is expensive , Amberdata is another one. I know another platform not finding it rn , i'll send it across by tomorrow.

@whyshock What is the second platform that you mentioned above and does it meet my requirements?

Thank you, I appreciate your help. I have a call with Kaiko on Tuesday. However, I have a feeling they will be much more than $150 / month possibly even with annual contract requirements. I will look into Coinglass.