CoinGecko API is free and publicly available. No API keys needed. Just drop the endpoint and start accessing CoinGecko's comprehensive data.
Access multitude of datasets such as coin info, live pricing, historical, volume, tickers, exchanges, developer, community, events, global markets, and even status updates directly from project teams of over 3000 coins, integrated with over 250 exchanges.
CoinGecko has been operating since 2014 and is trusted by many brands to provide the most accurate and reliable cryptocurrency data.
CoinGecko API V3 https://coingecko.com/api/docs/v3