Hi, from the link you shared, it seems to be a curl query, which unfortunatedly coingecko does not support.

If instead there is a REST api endpoint that I can pull, that would work ideally.

Some examples:

https://xfers.io/api/v3/stablecoin/supplies?supply_type=cs
https://apilist.tronscan.org/api/token/fund?token=newbtt
https://blockchain.info/q/totalbc

Note that the api endpoint returns the value in raw html form, which is the expectation for api endpoints provided to CoinGecko.

thanks!