List of the Top 4 RPC Node Providers for Polkadot in 2026

Trusted by 400+ institutions, we support over $110B in digital assets through secure blockchain infrastructure—spanning nodes, APIs, staking services, and MPC wallet technology. Since 2017, our globally distributed systems have delivered enterprise-grade scalability, security, and compliance for the world’s leading financial and crypto platforms.

Fastnode.io serves as a node provider in the web 3.0 ecosystem, offering the essential infrastructure needed for the development of decentralized applications (dApps). The developer tools from Fastnode.io ensure straightforward and dependable API access to multiple blockchain protocols, including Bitcoin, Ethereum, and Binance Smart Chain, among others. Regardless of whether you require a single node or a multitude of them, we are equipped to assist you in achieving your goals. Our platform is designed to meet the needs of developers at any scale, ensuring seamless integration and optimal performance.

With access to over 110 blockchain networks, NOWNodes offers developers fast and secure API connectivity to both Full and Archive Nodes. Whether you're building on a mainnet or testnet, NOWNodes supports a wide range of interfaces like Tendermint, Blockbook, and Index to meet your integration needs. Designed for performance and reliability, the platform boasts 99.95% uptime, lightning-fast ~0.6 second response times, and can process more than 15,000 transactions per second—providing the solid infrastructure your project can rely on.

OnFinality serves as a comprehensive blockchain infrastructure platform that streamlines the development process for web3 builders, ultimately saving them valuable time and simplifying their workflows. With scalable API endpoints tailored for major blockchain networks, OnFinality enables developers to effortlessly automate the testing, deployment, scaling, and monitoring of their blockchain nodes in just a few minutes. Having successfully managed over 300 billion RPC requests across 70 different networks, which encompass well-known platforms like Polkadot, Ethereum, Moonbeam, and Astar, OnFinality is continuously enhancing its essential services for developers. This relentless expansion allows creators to accelerate their efforts in shaping a decentralized future. By leveraging OnFinality, you gain a smarter approach to blockchain development and innovation.