Wallet Operations
resource: wallet — off-chain message signing and signature verification (EIP-191 / EIP-712)
No RPC call — pure local cryptography. Every operation on this page runs entirely
locally against the resolved signing key (or, for
verifySignature, purely against the
supplied message/signature). Nothing is broadcast to the network and no gas is spent.
signMessage — needs credential
EIP-191 (personal_sign) message signing.
| Field | Type | Required | Description |
|---|---|---|---|
message | text | ✓ Yes | Plain text message to sign. |
credentialID | credential | ✓ Yes | Vault CRYPTO_WALLET credential. |
{
"success": true,
"address": "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
"signature": "0x8a4f2e...1c"
}signTypedData — needs credential
EIP-712 structured/typed data signing — the standard behind wallet "sign this" prompts for DeFi approvals, permits, and off-chain orders.
| Field | Type | Required | Description |
|---|---|---|---|
typedDataJson | text (JSON) | ✓ Yes | Full standard EIP-712 envelope: {types, primaryType, domain, message}. |
credentialID | credential | ✓ Yes | Vault CRYPTO_WALLET credential. |
{
"success": true,
"address": "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
"signature": "0x3fa1c9...0b"
}verifySignature — no credential required
Pure signature recovery — verifies a signature against a message and recovers the signer's address. No signing key involved.
| Field | Type | Required | Description |
|---|---|---|---|
message | text | ✓ Yes | The original signed message. |
signature | text | ✓ Yes | The signature to verify. |
{ "success": true, "address": "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb" }
Common pattern: compare the recovered
address against an expected
signer to authenticate an off-chain message — e.g. verifying a user "logged in with Ethereum" by
signing a nonce.