zerion-sign
Zerion — Off-chain Signing
Produce signatures without broadcasting a transaction. Used for login flows, permits, and signed orders. The signature is the output — you hand it to the verifying party (a dapp, relayer, exchange, etc.).
Setup
If a zerion command fails with command not found, install once:
npm install -g zerion-cli
Requires Node.js ≥ 20. For auth see the zerion umbrella skill. Signing requires an agent token (used as the wallet passphrase). For setup → zerion-agent-management.
When to use
- SIWE ("Sign-In with Ethereum") login flows
- EIP-2612
permit— gasless ERC-20 approvals - Permit2 approvals
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