Best Blockchain APIs for Polkadot

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!

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.

OnFinality is a platform for blockchain infrastructure that saves web3 builders their time and makes their lives simpler. OnFinality provides API endpoints that are scalable for the largest blockchain networks. It empowers developers to automate testing, deployment, scaling, and monitoring their own blockchain nodes within minutes. OnFinality has processed over 300 billion RPC requests to date across 70 networks, including Polkadot and Ethereum, Moonbeam and Astar. It is constantly expanding these mission-critical services to developers so they can build the decentralised future faster! OnFinality helps you to be smarter.

NOWNodes is a Blockchain-as-a-Service that provides access to Full Nodes and Explorers via API. 50+ blockchain networks supported. Select the node you need, connect using available methods. We will take care of the rest. The service offers a high-quality infrastructure that's reliable, cost-effective, quick, and efficient. All partners have access to Service Quality Standards. Your nodes are monitored 24/7 to ensure their availability and relevance. Our clients enjoy the ability to scale for large tasks and rapid API responses.

Our vision is to empower tomorrow's pioneers by providing the strongest and most robust data infrastructure possible for the entire blockchain ecosystem. Explore the richest and most comprehensive blockchain data available online. To create rich and compelling interfaces for users, you can combine historical balances, positions, and PnL from dozens of DeFi protocol. Analytic dashboards that show price trends, liquidity, and the ROI of assets can be created. To integrate blockchain data into your project, check out our quick start tutorials, guides, example code, or other resources. Covalent offers a single API that allows you to see and control assets across all blockchain networks. We have a single API that allows you to pull detailed, granular transaction data from multiple blockchains without writing any code.

Bloq gives you a single interface to a growing set of infrastructure services that can be used to build on multiple blockchain networks. Blockchain APIs allow you to accelerate development by providing real-time connectivity to the most popular blockchain networks, indexed data, and additional services. You can create your own private, fully managed cluster of nodes to ensure your business has the strong, fault-tolerant data foundation the blockchain industry requires. Bloq provides the infrastructure that blockchain businesses require at all scales. Both blockchain-native and traditional businesses can grow with the advancements in blockchain networks. Your ecosystem needs vital infrastructure to enable it to develop innovative new applications, scale quickly and explore synergies with leading blockchain protocols.

Start your next blockchain project today with Chain49. We provide access via JSON-RPC and WebSocket to our network full nodes of blockchain located in Germany. The API is based on the battle-tested Blockbook indexer. We support the most popular Blockchains such as Bitcoin, Ethereum, BNB Smart Chain, and more! By using our services you can save time and money on setting up your blockchain infrastructure. You can then focus on developing your ideas. There are also dedicated nodes and custom setups available for over 50 different blockchains to meet the highest load requirements, without any rate limitations. Contact us today for a consultation or register for your free key to start building awesome things.