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CoreWriter Workbench

Decode or build raw CoreWriter action bytes, see raw integers next to human units, generate cast and Solidity, and query every read precompile live.

Last verified against protocol docs: 2026-09-28
Source: Interacting with HyperCore
rules: corewriter@1.0.0 · precompiles@1.0.0
Trace a transaction end to end

Raw action bytes

The bytes passed to CoreWriter.sendRawAction — or the full sendRawAction calldata.

0x-prefixed or bare hex; whitespace is ignored.

Samples
Decode a CoreWriter action

Byte 0 is the encoding version, bytes 1–3 the action ID, the rest is the ABI-encoded field tuple. Paste bytes to see every field as a raw integer and in human units.

0x01000007 …0098 9680 …0000 → usdClassTransfer(10 USDC, toPerp=false)