Index onlineMerchant portal
Api Endpoint

Signature Decoder

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.

Open interactive test console

Offering

Provider
sign.cyberwarex.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://sign.cyberwarex.com/decode
MIME type
Not provided
First seen
2026-10-16T01:50:06.715Z
Last seen
Tags
signature, eip712, permit, permit2, seaport

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x058D0Cc5CC97e61e8A9f38D6d6365bce525921B2"
  }
]

Observed health

Status
Degraded
Latest latency
430 ms
Average latency
2210 ms
HTTP status
410
Last checked
Reachability
92.9% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "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"
}

Output schema

{
  "$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"
}