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Understand and verify any Hyperliquid action

Diagnostic tools for developers building on HyperCore and HyperEVM — built on one typed, decimal-safe protocol core whose signing is checked against the official Python SDK.

Detected locally; nothing is sent or added to the URL.

Tools

Each one answers a specific question or error.

12 rule sets · verified 2026-10-05

Asset Resolver

Every identity a symbol maps to — perp, spot, HIP-3, HIP-4 — with asset IDs, token and pair indexes, decimals and copyable snippets, side by side across networks.

Why does @107 mean HYPE on mainnet but nothing on testnet?

Signing Inspector

Reproduce exactly what gets hashed: signing family, canonical MsgPack bytes, action hash, EIP-712 typed data and the recovered signer. Compare two payloads byte by byte.

L1 error: User or API Wallet 0x… does not exist.

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.

What does 0x01000001… actually tell HyperCore to do?
Flagship

Cross-layer Trace

Follow a HyperEVM transaction into HyperCore: receipt, decoded CoreWriter actions, the expected Core effect and the observed Core state — each link labelled observed, inferred or unknown.

My EVM transaction succeeded — why did nothing happen on HyperCore?

WebSocket Workbench

Subscribe to any channel, watch the ack, snapshot and live stream with freshness, record a session, simulate a disconnect and diff state before and after.

Did I miss messages while my socket was down?

RPC Capability Probe

Probe a HyperEVM JSON-RPC endpoint: chain ID, head, historical state, eth_getLogs range limits and HyperEVM-specific methods — with raw requests and a two-endpoint comparison.

Does this RPC return historical state or silently give me latest?
Signs & sends

Testnet Faucet Miner

Chain generated wallets through the testnet faucet to mine testnet USDC. The one tool in the hub that signs and sends — with your wallet, in your browser.

How do I get more than one faucet drip of testnet USDC?