Best Blockchain APIs with a Free Trial of 2025

Blockdaemon: Leading the way in enterprise blockchain solutions. Trusted by 300+ institutions, powering 100k+ nodes, backed by $390M. Choose us for innovation that delivers results!

We have provided node building and API customization for more than 2000+ enterprises. Our customers can save money on node setup, block synchronization, storage occupation, operation, maintenance, and other costs by having a stable and fast data interface that gives them real-time access the blockchain data. It makes it easy to develop related blockchain applications. Tokenview offers premium customers customized services, such as historical data retrieval from public chains, alerts about suspicious transfers for financial institutions, wallet services, and more. Tokenview's multi-crypto blockchain data APIs provides structured chain data as well as wallet service, large transfer alert, address monitoring, and so forth.

InfStones, a Softbank portfolio company, is an advanced, enterprise-grade Platform as a Service (PaaS) blockchain infrastructure provider headquartered in the United States and backed by leading venture capital investors. The company is trusted by the top blockchain companies globally, including Binance, BitGo, CoinList, Circle, Poloniex, imToken, Dune Analytics, Chainlink, Polygon, NuCyher, Near, and many more. InfStones is dedicated to breaking down the barriers of blockchain adoption and Web3 application development by providing developers worldwide with a rugged, powerful node management platform alongside an easy-to-use API. InfStones' platform is battle-tested and supports over 15,000 nodes on over 60 blockchains. The infrastructure is incredibly reliable, fast, efficient, secure, and scalable - and specially designed for cross-chain DeFi, NFT, GameFi, and decentralized application development. Developers use the AI-based platform to easily connect and work with more than 50 leading blockchain protocols, pushing the boundaries of what it means to lead with a vision and passion for global innovation. InfStones is trusted by the biggest blockchain companies in the world including Binance, Coinlist, BitGo, OKX, and more.

A single line of code can elevate your development experience using the most robust blockchain developer platform, which is trusted by 70% of the leading Ethereum applications worldwide. Alchemy Supernode stands as the most utilized Ethereum API available. It offers all the features of a traditional node, including JSON-RPC support, while providing enhanced reliability, data accuracy, and scalability essential for deploying top-tier blockchain applications. Alchemy Build consists of a no-configuration, in-house set of developer tools that allow for faster prototyping, debugging, and product delivery. You can swiftly search through millions of past requests, monitor real-time transactions in the mempool, execute JSON-RPC calls directly from the dashboard, and easily review recent requests and any errors. Furthermore, Alchemy Monitor presents an extensive range of dashboards and alerts focused on app health, performance metrics, and user engagement. You can quickly assess the status of all your applications from a single interface, gather user insights without breaching privacy, and receive automated notifications for any critical issues. This comprehensive suite empowers developers to streamline their workflow and enhance their application's overall performance.

Zabo serves as an API designed for seamless connectivity with any cryptocurrency exchange, wallet, protocol, or account. Within a few short hours, your users can unlock an expansive range of cryptocurrency accounts seamlessly integrated into your application. By utilizing Zabo's API, integration times can be slashed by as much as 80%, all while requiring minimal engineering resources compared to traditional methods. Typically, the process of supporting various exchanges, wallets, and protocols can drag on for months, but with Zabo, you can achieve a complete integration in just one afternoon. Furthermore, Zabo is continually expanding its support for new exchanges, wallets, and protocols, ensuring that your users have access to the latest offerings. What sets Zabo apart is its ability to deliver consistent data formatting across all connections, which guarantees your application exceptional reliability and uniformity in data handling. This feature not only enhances user experience but also streamlines development for your team, making it a valuable tool in the ever-evolving world of cryptocurrency.

If your expenditures exceed $2,000 on a blockchain API infrastructure and you are generating numerous requests each second, exploring avenues for cost efficiency could be beneficial. This is where our services come into play, offering rapid access to blockchain infrastructure via a JSON-RPC endpoint tailored to your secure environment. How can RPC Fast, a self-managed cluster featuring geo-distributed blockchain nodes, assist you in this endeavor? - Our infrastructure is exceptionally fast, boasting over 90 distributed zones with nodes that maintain a 100% health status. - We guarantee an impressive uptime of 99.99% and an average latency of just 85.6 milliseconds from virtually anywhere. - At the core of our service lies PredictKube, an AI-driven model designed to anticipate traffic patterns and automatically adjust infrastructure capabilities based on your historical data and business metrics. - Additionally, our self-hosted solution guarantees the utmost security for your blockchain infrastructure, ensuring that your operations remain protected while you optimize costs. With these features, you can enhance performance while effectively managing your expenses.

Our goal is to equip the innovators of the future by delivering a comprehensive and powerful data framework tailored for the entire blockchain landscape. Dive into and contribute to the most extensive blockchain data available online. Consolidate historical balances, positions, and profit and loss across numerous DeFi platforms to create engaging and dynamic interfaces for your audience. Develop analytical dashboards that showcase asset price trends, liquidity, and return on investment. Take advantage of our quick start tutorials, how-to manuals, sample code, and more, enabling seamless integration of blockchain data into your project through the Covalent API. Covalent offers a cohesive API that ensures complete transparency and insight into assets across various blockchain networks. In essence, we provide a singular API that allows you to retrieve detailed and granular blockchain transaction information from multiple blockchains without requiring any coding expertise. This makes it easier than ever for developers to access and utilize blockchain data in their applications.