Best Blockchain Node Providers for Polkadot

Since 2017, we’ve helped over 400 organizations—ranging from exchanges to financial institutions—manage more than $110B in digital assets. Our services include robust support for staking, blockchain nodes, APIs, DeFi, and MPC wallets, all backed by a globally resilient architecture built for security, compliance, and scale.

Fastnode.io is a web 3.0 node provider that provides the infrastructure for building dApps Fastnode.io developer tools guarantee easy and reliable access via API to a variety of blockchain protocols: Bitcoin, Ethereum, Binance smart chain, etc. Whether it is one node or thousands, we can help.

NOWNodes is a robust RPC provider granting API access to Full and Archive Nodes across 110+ blockchain networks. It supports various protocols including Tendermint, Blockbook, and Index, with availability on both mainnets and testnets depending on the chain. The service delivers a reliable, scalable infrastructure with 99.95% uptime, ~0.6s response time, and capacity for over 15,000 transactions per second—ensuring developers uninterrupted access to accurate blockchain data.

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.

Zeeve is an enterprise-grade, neutral blockchain operating and enablement platform that helps organizations deploy, operate, and scale blockchain infrastructure with clear operational ownership.

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.

Launch your upcoming blockchain venture effortlessly with Chain49! We offer seamless access to our extensive network of full blockchain nodes based in Germany through JSON-RPC, WebSocket, and a reliable API powered by the proven Blockbook indexer. Our support extends to a variety of popular blockchains, including Bitcoin, Ethereum, BNB Smart Chain, and many others! Utilizing our services allows you to significantly reduce the time and financial investment typically required to establish your own blockchain infrastructure, enabling you to concentrate on bringing your innovative ideas to life. For those with demanding requirements, we also provide dedicated nodes and tailored setups across more than 50 different blockchains, ensuring you can handle the highest loads without facing any rate limits. Reach out to us today for a complimentary consultation, or sign up for a free key to embark on your exciting building journey! Additionally, we’re here to help you navigate the complexities of blockchain technology and support your project every step of the way.

We provide enterprise-grade RPC for 40+ blockchain networks, and process over 500 million requests per day. Comprehensive Blockchain Support: We support over 40 different networks and are constantly expanding our offering. We will take care of the complexity of setting up your RPC Node, saving you both time and effort. Automated Upgrades: We have automated software upgrades for our network, ensuring that all nodes are running the latest versions. Proactive Maintenance – Automated health checks, prompt troubleshooting and proactive maintenance help maintain a smooth operation. Low-Latency network - Enjoy fast, reliable operations no matter where you are located in the world. Auto Scaling – Our infrastructure is designed for you to scale up with your needs and can easily handle significant traffic spikes. Exclusive Hardware Ownership: We own and operate our own hardware. This contributes to true decentralization, as we don't rely on public cloud services.