Know-Your-Agent counterparty screening — reputation pillar

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xffFf4B8Da8C165B556326453446F6940C8AFE0DB",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "100000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "address": "0x1111111111111111111111111111111111111111",
          "amount": 50000,
          "chain": "base",
          "domain": "example.com"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "_note": "Illustrative response shape — not a live answer. ALLOW/WARN/BLOCK is a screening signal. The embedded EIP-712 receipt (domain chainId 421614 = Arbitrum Sepolia, a frozen signing namespace, not a settlement rail) proves who signed the exact answer bytes — not that the verdict is correct.",
          "answer": {
            "methodology": "ar-v1",
            "query": {
              "address": "0x1111111111111111111111111111111111111111",
              "amount": 50000,
              "chain": "base",
              "domain": "example.com"
            },
            "reasons": [
              "illustrative — real answers cite the ar-v1 domain (RDAP/TLS/DNS/Wayback), on-chain, and blocklist signals judged"
            ],
            "score": 55,
            "v": "address-reputation/v1",
            "verdict": "WARN"
          },
          "attestation": {
            "domain": {
              "chainId": 421614,
              "name": "BYTE Library",
              "version": "1"
            },
            "payloadHash": "0x…",
            "signature": "0x…",
            "signer": "0x…"
          }
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "anyOf": [
                {
                  "required": [
                    "domain"
                  ]
                },
                {
                  "required": [
                    "url"
                  ]
                }
              ],
              "properties": {
                "address": {
                  "description": "The receiving address about to be paid. On-chain history + blocklist are checked on the selected chain.",
                  "pattern": "^0x[0-9a-fA-F]{40}$",
                  "type": "string"
                },
                "amount": {
                  "description": "Optional. The payment amount in atomic units — logged with the query and bound into the verdict context.",
                  "minimum": 0,
                  "type": "integer"
                },
                "chain": {
                  "description": "Mainnet for the on-chain receiving-address signals (default \"base\" = Base mainnet; \"arbitrum-one\" = Arbitrum One mainnet). Mainnets only — a testnet returns meaningless zeros for a real payee. (The Arbitrum Sepolia testnet is opt-in dev-only via ADDRESS_REP_ENABLE_TESTNET as chain \"arbitrum-sepolia\", and is intentionally not advertised here.)",
                  "enum": [
                    "base",
                    "arbitrum-one"
                  ],
                  "type": "string"
                },
                "domain": {
                  "description": "The payee's web domain, e.g. \"github.com\". BLOCK if it doesn't resolve or hits the blocklist. Provide either `domain` or its alias `url`.",
                  "minLength": 1,
                  "type": "string"
                },
                "url": {
                  "description": "Alias for `domain` — the payee's web domain/URL. Accepted interchangeably with `domain` (provide at least one).",
                  "minLength": 1,
                  "type": "string"
                }
              },
              "required": [
                "address"
              ],
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "payperbyte-service-metadata": {
    "serviceName": "PayPerByte",
    "tags": [
      "payperbyte",
      "address-reputation",
      "payments-risk",
      "go-no-go",
      "signed-verdict"
    ]
  }
}

curl "https://x402.payperbyte.io/feeds/address-reputation"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://x402.payperbyte.io/feeds/address-reputation");
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://x402.payperbyte.io/feeds/address-reputation")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header