RPCNode.IO is an independent benchmarking platform for blockchain remote procedure call (RPC) providers. It continuously measures Ethereum, BNB Smart Chain and Solana endpoints using its own distributed probes, rather than relying on performance figures supplied by providers. The platform tracks latency, availability, response correctness and chain-head freshness across methods and regions, helping developers compare services based on observed performance.

Its site offers live rankings, chain-specific comparisons, provider and endpoint information, and detailed results for individual RPC methods. These include contract and account state reads, event-log queries, block data, transaction receipts, blockhash retrieval and slot checks. Results can be examined by response-time percentiles, provider support and network propagation, with measurements collected across multiple probe regions.

RPCNode.IO also provides a methodology guide explaining how probes call real endpoints, record timing stages separately and classify failures. The platform distinguishes unsupported methods, rate limits and measurement errors, and indicates when data is limited rather than presenting uncertain conclusions as facts.