Decode raw EVM calldata into a named function, signature and arguments, plus security risk

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

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "data": "0x095ea7b3000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "decoded": {
            "args": {
              "amount": "115792089237316195423570985008687907853269984665640564039457584007913129639935",
              "spender": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
            },
            "function": "approve",
            "signature": "approve(address,uint256)"
          },
          "disclaimer": "Static decode + keyless eth_call preview only. This is not financial advice and not a guarantee: a call that would succeed now can still revert at broadcast time (state changes, slippage, MEV). Always verify before signing.",
          "risk": {
            "flags": [
              {
                "code": "unlimited_approval",
                "detail": "approval amount is effectively unlimited",
                "severity": "danger"
              }
            ],
            "level": "danger"
          }
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "additionalProperties": false,
              "properties": {
                "data": {
                  "description": "Transaction calldata (hex, 4-byte selector + ABI args).",
                  "pattern": "^0x[a-fA-F0-9]*$",
                  "type": "string"
                },
                "to": {
                  "description": "Target address (optional, for context only).",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "required": [
                "data"
              ],
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "decoded": {
                  "description": "function, signature, args.",
                  "type": "object"
                },
                "disclaimer": {
                  "type": "string"
                },
                "risk": {
                  "description": "level (none|caution|danger) + flags.",
                  "type": "object"
                }
              },
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://simulate.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://simulate.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://simulate.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