Go CLI + REST gateway for multi-chain transaction signing (EVM & Cosmos) backed by HashiCorp Vault. Custom secp256k1 plugin signs pre-hashed bytes — private key material never leaves Vault. Supports EIP-155, EIP-712, and Cosmos SIGN_MODE_DIRECT / AMINO_JSON.
go devops kms signing blockchain web3 hashicorp-vault evm secp256k1 multichain vault-plugin transaction-signing infrasec eip-712 comos
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Updated
Jun 25, 2026 - Go