Cryptocurrency data APIs have become essential tools for developers, traders, and analysts seeking reliable market data for various digital assets. In 2025, the demand for accurate and up-to-date information is higher than ever, making the choice of the right API crucial. Let’s explore best crypto APIs, including free crypto APIs and best cryptocurrency data APIs for both beginners and advanced users.
Comparison Table of Best Crypto APIs
| API | Key Features | Free Plan | Data Coverage | Best For |
|---|---|---|---|---|
| NOWMarket API | 9000+ assets, extensive data | Yes | Multiple assets, real-time data | Trading bots, analytics |
| CoinGecko API | 14,000+ assets, NFT data | Yes | Extensive market data, NFTs | Beginners, small projects |
| CoinMarketCap | Advanced data, historical data | Yes | 20,000+ assets, exchange data | Financial applications |
| CoinDesk API | News data, market insights | Yes | Market news, crypto prices | News integration, analytics |
| Messari | Institutional-grade data | Yes | In-depth asset data, market reports | Research, financial analysis |
1. NOWMarket API by NOWNodes
NOWMarket API is a powerful and reliable data service provided by NOWNodes, designed for developers, traders, and analysts seeking real-time and historical data on 9000+ assets and 90+ fiat rates. This API offers data endpoints, including live prices, market capitalization, trading volume, and more. NOWNodes’ API easy to use for the beginers. Its advanced infrastructure ensures quick and stable data delivery, making it ideal for building trading bots, financial analytics tools, and market monitoring systems. To learn more about the NOWMarket API and its features, visit the official page here.
2. CoinGecko API
CoinGecko API is widely recognized as one of the best cryptocurrency data APIs available today. It offers extensive data on over 14,000 cryptocurrencies and 1,000 exchanges. From current prices to historical data and NFT analytics, CoinGecko API is a versatile and comprehensive tool. It also provides a free crypto API plan with a generous request limit, making it accessible for smaller projects.
3. CoinMarketCap API
CoinMarketCap API is one of the popular option for those seeking highly accurate and extensive data coverage. It provides data on more than 20,000 cryptocurrencies and offers multiple subscription plans, including a free crypto API tier. Its endpoints include price tracking, market capitalization, historical data, and exchange data, making it suitable for complex financial applications.
4. CoinDesk API
CoinDesk API offers comprehensive cryptocurrency news data, including market updates, asset prices, and blockchain-related news. It is particularly useful for projects that require news integration alongside price data, making it a great choice for financial news platforms and market analysis tools.
5. Messari API
Messari API provides institutional-grade data and insights, focusing on comprehensive asset data, in-depth market reports, and financial metrics. It is well-suited for advanced financial analysis, research platforms, and institutional-grade applications.
Conclusion
Selecting the best crypto API depends on your specific use case. For developers seeking a free crypto API: CoinGecko and CoinMarketCap offer robust plans. For advanced data needs, NOWMarket API, CoinDesk API, and Messari API provide extensive data coverage and premium features. By choosing the right cryptocurrency data API, you can build powerful trading bots, analytical tools, and market monitoring solutions in 2025.
