List of the Top 8 Blockchain APIs for Scroll in 2025

QuickNode streamlines blockchain infrastructure for both large and small teams. It offers a rapid global API that provides immediate access to a variety of networks, including Ethereum, Solana, Bitcoin, Polygon, BSC, Fantom, Avalanche, Terra, Celo, Optimism, Arbitrum, Algorand, Harmony, and Gnosis (xDai). Users can retrieve chain data through JSON-RPC via HTTPS or WebSocket endpoints. Additionally, an analytics dashboard allows for usage monitoring, while fast deployment tools like one-click WebHooks enhance efficiency for smart contract events, NFT, and ERC20 token APIs. With thousands of nodes successfully launched and a reputation for reliability among leading blockchain projects and businesses, QuickNode has been a pivotal force in the growth of the blockchain ecosystem since its inception in 2017. Its commitment to innovation continues to empower developers and foster new opportunities within the space.

Chainstack provides a suite of APIs and software that empower countless businesses, regardless of their size, to develop, expand, and sustain blockchain applications effectively. Their APIs are designed with security in mind, featuring secure node connections and best practices for key management to ensure your data remains safe and under your control. You also have the capability to invite additional members to your network, allowing them to deploy their infrastructure effortlessly through user-friendly network management tools. With Chainstack, you can select and implement the blockchain protocol that meets your specific requirements, and it will remain unchanged for your use. Chainstack’s managed blockchain services simplify the processes of launching, joining, and scaling decentralized networks, making it accessible for users at all levels. The platform enables you to test out enterprise-grade tools and services with confidence before transitioning to a production environment. Additionally, ongoing monitoring and resource provisioning are provided to help you maintain optimal performance and efficiency. This comprehensive approach ensures that businesses can focus on innovation while relying on robust support from Chainstack.

InfStones, a prominent company within the Softbank portfolio, is a sophisticated Platform as a Service (PaaS) provider for blockchain infrastructure, operating out of the United States with the backing of notable venture capitalists. This organization has earned the confidence of leading blockchain enterprises worldwide, such as Binance, BitGo, CoinList, Circle, and several others. Committed to facilitating blockchain adoption and the development of Web3 applications, InfStones offers a robust node management platform coupled with a user-friendly API, designed for developers across the globe. Their platform has been tested in real-world scenarios, boasting support for over 15,000 nodes across more than 60 different blockchains. Known for its incredible reliability, speed, efficiency, security, and scalability, the infrastructure is tailored specifically for cross-chain DeFi, NFTs, GameFi, and decentralized application development. Developers leverage this AI-enhanced platform to seamlessly interact with more than 50 prominent blockchain protocols, continually redefining the landscape of global innovation. InfStones has established itself as a trusted partner for some of the largest players in the blockchain industry, emphasizing their pivotal role in the future of technology. By fostering an environment conducive to innovation, InfStones is paving the way for the next generation of digital solutions.

Our REST API is crafted to support real-time applications while adeptly handling extensive parallel processing, which simplifies tasks like retrieving NFT sales data, ERC20 token balances, and DEX swaps. By utilizing our SDK, you can effortlessly integrate this information into your production environment with minimal coding. This allows for the rapid development of more complex queries and transformations, providing complete freedom in data ingestion. The ability to join multiple tables allows you to address advanced use cases, such as calculating PnL leaderboards from NFT sales data, determining optimal floor prices for various collections, or evaluating the USD-equivalent balance of a wallet's ERC20 assets at any given historical point. In addition, our serverless snippets facilitate connections to external data sources and enable transformations that might not be achievable through conventional SQL queries. Accessing Transpose directly from your frontend empowers you to significantly enhance production UIs. With real-time capabilities and extremely low latency queries, you can provide your clients with essential data as quickly as possible, ensuring they receive the latest information at their fingertips. This impressive array of features not only optimizes your applications but also equips you to meet the evolving needs of modern users with exceptional efficiency and responsiveness. Additionally, the versatility and power of our API further streamline the development process, enabling quicker deployment of innovative solutions.

To tackle the issues of reliability and performance in the Web3 space, we harness the power of various third-party node providers in combination with an advanced decentralized blockchain API platform to significantly improve user interactions. By doing so, developers can initiate their projects on key blockchain ventures within the Web3 ecosystem without unnecessary delays. Our commitment to offering one of the most resilient decentralized infrastructure solutions, paired with swift response times, is realized through the use of clustering techniques and the strategic geographical placement of third-party nodes, enabling Web3 developers to effortlessly fulfill their infrastructure needs and focus on creating applications. The scaling process is efficiently managed as we continue to onboard additional node providers into our expanding network. We guarantee optimal performance from our nodes by conducting regular assessments and enforcing penalties for those that do not meet established criteria, which may include the slashing of staked tokens or removal from our network. This all-encompassing strategy not only enhances reliability but also creates a more efficient environment for every participant in the Web3 domain, ultimately leading to improved outcomes for all users involved. By prioritizing these initiatives, we are paving the way for a more robust future in decentralized technology.

Presenting an innovative distributed cloud platform that harnesses idle resources from various locations to boost your productivity, cut costs, and broaden your global reach. Our intuitive and sophisticated dashboard empowers you to create, launch, and manage your projects effortlessly across multiple environments. By streamlining the setup process, you can devote more time to achieving results, thanks to our user-friendly platform. Leveraging our state-of-the-art cloud-native technology, you can swiftly deploy applications or your custom code on our vast distributed network, allowing for efficient innovation and scaling. This solution will fundamentally change the way you approach project management and execution, leading to enhanced operational efficiency. As you embrace this groundbreaking platform, you will unlock new possibilities for collaboration and success.

Our aim is to empower the next generation of innovators by providing a robust and comprehensive data framework designed specifically for the entirety of the blockchain ecosystem. Engage with and contribute to an extensive array of blockchain data available online. Aggregate historical balances, positions, and profit and loss from various DeFi platforms to craft captivating and interactive experiences for your users. Create sophisticated analytical dashboards that represent trends in asset prices, liquidity levels, and returns on investment. Leverage our quick start guides, instructional manuals, sample code, and additional resources, which facilitate the effortless integration of blockchain data into your projects using the Covalent API. Covalent presents a unified API that guarantees comprehensive transparency and insights regarding assets across different blockchain networks. Essentially, we provide a singular API that allows you to access detailed and granular information on blockchain transactions from multiple blockchains without the need for any coding skills. This user-friendly approach ensures that developers can easily tap into and utilize blockchain data within their applications, fostering innovation and creativity in the space. With our tools, the potential for new ideas and projects is limitless.

APIs play a crucial role in shaping a vibrant decentralized future, and The Graph stands out as a groundbreaking indexing protocol that enables efficient querying of networks like Ethereum and IPFS. This platform empowers individuals to create and disseminate open APIs, referred to as subgraphs, which significantly improve data accessibility. These interconnected subgraphs can collectively form a vast global graph that encapsulates all publicly available information worldwide. Consequently, data can be transformed, organized, and leveraged across numerous applications, allowing users to retrieve the information they need with ease and minimal effort. Before The Graph's introduction, development teams were burdened with the task of constructing and maintaining proprietary indexing servers, a labor-intensive process that required considerable engineering skills and hardware resources, ultimately jeopardizing the vital security features essential for genuine decentralization. This advancement in data management not only simplifies access but also encourages collaboration and innovation within the decentralized landscape. Moreover, by alleviating the technical burdens placed on developers, The Graph fosters an environment where creativity can flourish, leading to a more robust and interconnected ecosystem.