Best Blockchain APIs for Chainlink

QuickNode simplifies blockchain infrastructure for teams big & small. A lightning-fast global API provides instant access to Ethereum, Solana, Bitcoin, Polygon, BSC, Fantom, Avalanche, Terra, Celo, Optimism, Arbitrum, Algorand, Harmony & Gnosis (xDai) networks. Access chain data via JSON-RPC over HTTPS or wss (websocket) endpoints. Monitor usage with analytics dashboard and ship faster with tools like 1-click WebHooks for smart-contract events, NFT, and ERC20 token APIs. Thousands of nodes launched; trusted by top blockchain projects & businesses; QuickNode is helping the blockchain ecosystem grow since 2017!

Crypto APIs is a blockchain infrastructure provider that makes developing and managing Web 3 solutions easy and efficient. The infrastructure suite includes The company's product suite includes Blockchain Data, Blockchain Events, Blockchain Automations, Blockchain Tools, Non-Custodial Wallets and Market Data. Developers access all tools with one seamless integration. They can deploy over 100 endpoints from a single provider by using just one SDK. The company's REST APIs work with multiple blockchain mainnets and testnets. They are suitable for building diverse solutions, including digital banks, exchanges, wallets, custodians, lending products, and more. Companies like Chainlink, Ledger, Nexo, PayPal, and Prime Trust are already using Crypto APIs. Customers love Crypto APIs' white glove support and robust features, calling Crypto APIs' products "reliable, effective, and fast". The company is ISO/IEC 27001:2013 certified - it incorporates advanced encryption and the highest security standards to protect customers' data and digital assets.

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.

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.