Decode an off-chain SIGNATURE REQUEST before you sign it: EIP-712 typed data (eth_signType

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x058D0Cc5CC97e61e8A9f38D6d6365bce525921B2",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "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": {
        "example": {
          "disclaimer": "Deterministic, keyless decode of a signature request only. This is not financial advice and not a guarantee: it reads the request you were given, it cannot know the intent of the site that produced it. Never sign a request you do not understand.",
          "domain": {
            "chainId": 1,
            "name": "USD Coin",
            "verifyingContract": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
            "version": "2"
          },
          "kind": "typed_data",
          "primaryType": "Permit",
          "risk": {
            "flags": [
              {
                "code": "unlimited_token_approval_via_permit",
                "detail": "spender gets an effectively unlimited allowance of USD Coin.",
                "severity": "danger"
              }
            ],
            "level": "danger"
          },
          "summary": "Gasless UNLIMITED token approval (EIP-2612 permit) of USD Coin to spender 0x1111..."
        },
        "type": "json"
      }
    },
    "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"
    }
  }
}

curl "https://sign.cyberwarex.com/decode"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://sign.cyberwarex.com/decode");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://sign.cyberwarex.com/decode")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header