Hey there, we have APIs for both geckoterminal and coingecko. Both has public endpoints without API keys to pull market cap. Happy to help if you have other needs.

eg.
https://api.geckoterminal.com/api/v2/networks/base/tokens/0x1bc0c42215582d5A085795f4baDbaC3ff36d1Bcb
https://api.coingecko.com/api/v3/coins/base/contract/0x1bc0c42215582d5A085795f4baDbaC3ff36d1Bcb

But geckoterminal API should be all you need as it returns market cap data from CG too if listed there

Docs:
https://docs.coingecko.com/v3.0.1/reference/introduction
https://apiguide.geckoterminal.com/

wrench guy for @clanker 🤖🔧👨🏼‍🔧

ignore bio, see my track record. /justbuild

Hey would like to hear what problem you are facing with the API, see if I am able to help

TM Lee

@tmlee