GetBlock Blockchain API

GetBlock is a blockchain infrastructure platform that provides developer-friendly API access to over 50 blockchain networks, including Bitcoin, Ethereum, Solana, Polygon, BNB Smart Chain, Arbitrum, Optimism, Avalanche, and many others. Founded in 2019, GetBlock serves as a Blockchain-as-a-Service (BaaS) provider, eliminating the need for developers to run and maintain their own full nodes by providing RPC endpoints for reading and writing blockchain data. Key features include: multi-chain support (providing JSON-RPC, REST, and WebSocket endpoints for over 50 blockchain networks including EVM chains, Solana, Bitcoin, Cardano, Algorand, and Layer 2 solutions), node types (offering shared nodes for cost-effective access, dedicated nodes for high-traffic applications with guaranteed resources, and archive nodes for historical data access), JSON-RPC API (standard JSON-RPC 2.0 endpoints compatible with web3.js, ethers.js, Web3.py, and other blockchain libraries), WebSocket API (real-time event subscriptions for new blocks, pending transactions, contract events, and address activity), REST API (simplified HTTP endpoints for common operations like balance checks, transaction history, and token transfers), shared and dedicated endpoints (shared endpoints for development and testing, dedicated endpoints for production with higher rate limits and guaranteed uptime), API key authentication (simple API key-based authentication with request rate limiting and usage monitoring), dashboard and analytics (a web dashboard showing API usage, request counts, error rates, and rate limit consumption), free tier (generous free tier with up to 40,000 requests per day for shared nodes), testnet support (access to blockchain testnets including Ethereum Sepolia, Bitcoin Testnet, and Solana Devnet for development and testing), and enterprise features (custom rate limits, SLA guarantees, white-label solutions, and priority support for enterprise customers).