publicnode.com

What It Is

PublicNode is a public blockchain RPC endpoint service for Web3 developers. Its site describes it as offering the “fastest, free-est, and privacy first RPC endpoints,” covering 78 blockchains. Beyond listing mainnet and testnet endpoints, it also shows operational metrics such as total requests over the past 24 hours, cache request ratio, average req/sec, current req/sec, and the number of nodes for each chain. Overall, it is positioned more like a multi-chain public infrastructure gateway.

Core Capabilities and Ecosystem

Based on the page content, PublicNode’s biggest strength is its broad chain coverage: Ethereum, BNB Smart Chain, Polygon, Base, Arbitrum, Optimism, Solana, Avalanche, Cosmos, Sui, Aptos, Bitcoin, Polkadot, Starknet, and more are all listed. It also supports a wide range of interface types, including RPC, WS RPC, Beacon API, GRPC, GRPC-WEB, REST, LCD, FCD, and Yellowstone GRPC, making it suitable for the access patterns of different ecosystems such as EVM, Cosmos, and Solana. Ethereum, Base, BSC, Solana, and Arbitrum are also marked as having MEV Protection enabled by default, which helps users send transactions more safely.

Pricing and Access

The page clearly emphasizes that the service is free, but it does not disclose details such as rate limits, request quotas, API keys, SLA, paid upgrades, or enterprise support. Access is mainly provided through standard endpoints, and there is no mention of an official SDK, language-specific framework, or self-hosted deployment guide. The presence of Node Snapshots and Seed Service suggests that PublicNode also serves node synchronization and network discovery use cases, though the available details are limited.

Pros and Cons

Its advantages are that it is free, multi-chain, supports many protocol types, and publicly displays real-time traffic and node status. It is well suited for rapid development, testnet validation, backup default RPC options for wallets, and small to medium-sized DApp integrations. The downside is that any public free service naturally comes with uncertainty around stability, latency, rate limiting, and support. The page does not explain service levels, incident support, data retention policies, or network performance in China, so critical production systems should prepare backup RPC providers.

Who It’s For and Access from China

PublicNode is suitable for Web3 developers, hackathon teams, wallet developers, multi-chain data tools, and projects that need low-cost access to multiple blockchain networks. The page does not state how well it works from mainland China, so actual use should involve testing domain connectivity, latency, and WebSocket/GRPC availability. If you need a commercial SLA or more stable paid support, alternatives such as Alchemy, Infura, QuickNode, Ankr, and Chainstack are worth comparing.