Decode an off-chain SIGNATURE REQUEST before you sign it
Decode an off-chain SIGNATURE REQUEST before you sign it: EIP-712 typed data (eth_signTypedData_v4) or a plain personal_sign string. Turns the opaque request into a human-readable summary plus security risk flags for the drainer patterns wallets miss - gasless unlimited token approvals (EIP-2612 Permit, DAI permit, Uniswap Permit2) and asset-transferring marketplace orders (Seaport). Keyless, deterministic, zero network.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
1337 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://sign.cyberwarex.com/decode
| Category | Market data |
|---|---|
| Provider host | sign.cyberwarex.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 19 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.002 | 1337 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"typed_data": {
"domain": {
"chainId": 1,
"name": "USD Coin",
"verifyingContract": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"version": "2"
},
"message": {
"deadline": 9999999999,
"nonce": 0,
"owner": "0x0000000000000000000000000000000000000001",
"spender": "0x1111111254EEB25477B68fb85Ed929f73A960582",
"value": "115792089237316195423570985008687907853269984665640564039457584007913129639935"
},
"primaryType": "Permit"
}
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"message": {
"description": "A plain personal_sign string (use instead of typed_data).",
"type": "string"
},
"typed_data": {
"description": "EIP-712 typed data (object or JSON string) as passed to eth_signTypedData_v4: types, domain, primaryType, message.",
"type": [
"object",
"string"
]
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"disclaimer": {
"type": "string"
},
"domain": {
"description": "EIP-712 domain (name, chainId, verifyingContract).",
"type": "object"
},
"kind": {
"description": "typed_data or personal_sign.",
"type": "string"
},
"primaryType": {
"type": "string"
},
"risk": {
"description": "level (none|caution|danger) + flags.",
"type": "object"
},
"summary": {
"description": "human-readable statement of what signing does.",
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}