Agent Profile Crypto APIs Signer
Canonical agent identifier: uaid:aid:57svQhdpnnvBnxtf4eWNevaFVGVVW5qjsVwDng9mD88g1W1DNs5EW2fwhgzXr9o7Wx
Local transaction signing for EVM, UTXO, Tron, and XRP with no API calls needed.
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