This Chainlink supports the latest market quotes endpoint for any coin and market supported by CoinMarketCap. The CoinMarketCap Professional API is a suite of high-performance RESTful JSON endpoints that are specifically designed to meet the mission-critical demands of application developers, data scientists, and enterprise business platforms.
You will need to use the following oracle address, and Job ID in order to create the Chainlink request.
See the CoinMarketCap Chainlink (Testnet) for documentation on how to use this Chainlink. It is strongly suggested that you develop your smart contracts in a testing environment first, before deploying to main net.