The CoinGecko API is a comprehensive resource supporting both real-time and historical price discovery for cryptocurrency trading applications. It provides cryptocurrency information in the JSON format that can be coded into websites, mobile applications, cloud software, and spreadsheets. The data from the API includes current prices for Bitcoin as well as over 6,500 altcoins with trading volume, historical records, and additional crypto exchange resources. The CoinGecko API is free to use up to 100 requests per minute. It allows apps to import background information in JSON format about over 6,877 cryptocurrencies and 457 exchanges. The API supports cryptocurrency wallets, DeFi applications, block explorers, data aggregators, professional media services, and other innovative crypto trading platforms. It has been used by many of the world’s leading cryptocurrency applications, including cryptocurrency wallets, trading portals, banks, discovery applications, decentralized finance platforms, yield farming utilities, and NFT galleries. The CoinGecko API is designed to function by providing real-time updates on cryptocurrency prices and supports DeFi and yield farming.