CoinMarketCap API

CoinMarketCap API is the industry standard for cryptocurrency market data, providing comprehensive access to real-time and historical prices, market capitalizations, volume data, and exchange information. The API powers thousands of applications, from trading bots to portfolio trackers, and its data coverage of thousands of assets is unmatched. The free tier is generous enough for hobby projects and prototyping, while paid tiers offer the rate limits and endpoints that production applications require. Documentation is thorough and well-maintained, with clear examples in multiple programming languages. The main concern is CoinMarketCap's ownership by Binance, which raises questions about data neutrality and potential conflicts of interest. Despite this, the breadth of data and reliability of service make it the default starting point for developers building crypto data applications.