Question: Can you recommend a blockchain node infrastructure that provides fast and reliable access to Ethereum, BNB Chain, and Polygon?

If you need a fast and high-performance blockchain node infrastructure that supports Ethereum, BNB Chain and Polygon, RPC Fast is worth a look. This service provides dedicated nodes for those blockchains with predictive autoscaling to optimize performance and costs that are up to 5x lower than those of traditional providers. It also includes AI-based auto-scaling, smart caching and a software-defined perimeter for the highest level of security.

Another contender is dRPC, a decentralized network that aggregates access to data across multiple blockchain platforms, including Ethereum and Polygon. dRPC uses an AI-powered load balancer for high performance and has a pay-as-you-go pricing model, so it's scalable and cost-effective. The decentralized design helps to avoid centralization risks and ensures high reliability and efficiency.

For developers who need immediate access to cross-chain blockchain data and real-time market data, Moralis offers a suite of enterprise-grade Web3 APIs. The APIs support Ethereum, Polygon and other EVM chains, and offer features like cross-chain NFT transfers and real-time token prices. Moralis is designed to speed up development time and complexity, so it's well-suited for building scalable blockchain applications.

Last, 1RPC offers a single RPC endpoint for accessing multiple blockchain networks while protecting user privacy with features like on-chain RPC relay and metadata removal. It supports networks like Polygon and Arbitrum and offers a free tier, so it's good for a variety of users.