September 21, 2026 · 8 min read
Hyperliquid RPC: A Developer's Guide
How to query HyperEVM over JSON-RPC — chain 999, ~1s blocks, a near-fixed 0.1 gwei base fee, a 1000-block and 1 MiB eth_getLogs cap, no WebSocket, and the one that will cost you money: state methods accept a block number and then ignore it, so historical reads silently return the latest state.
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