x402 asset network compatibility derived

{
  "input": {
    "body": {
      "buyer": {
        "assets": [
          "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913"
        ],
        "schemes": [
          "exact"
        ],
        "networks": [
          "eip155:8453"
        ],
        "versions": [
          2
        ],
        "max_amount_atomic": "10000"
      },
      "challenge": {
        "accepts": [
          {
            "asset": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
            "payTo": "0xa1b2c30000000000000000000000000000009f8e",
            "amount": "5000",
            "scheme": "exact",
            "network": "eip155:1"
          },
          {
            "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "payTo": "0xa1b2c30000000000000000000000000000009f8e",
            "amount": "40000",
            "scheme": "exact",
            "network": "eip155:8453"
          },
          {
            "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "payTo": "0xa1b2c30000000000000000000000000000009f8e",
            "amount": "3000",
            "scheme": "upto",
            "network": "eip155:8453"
          }
        ],
        "resource": {
          "url": "https://api.merchant.test/v1/score",
          "mimeType": "application/json",
          "description": "Scoring"
        },
        "extensions": {
          "bazaar": {
            "schema": {
              "properties": {
                "input": {},
                "output": {}
              }
            }
          }
        },
        "x402Version": 2
      }
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  },
  "output": {
    "type": "json",
    "example": {
      "limits": {
        "maxAssets": 100,
        "maxAccepts": 20,
        "maxFindings": 500,
        "maxNetworks": 50,
        "maxResources": 500,
        "maxChallenges": 200
      },
      "passed": false,
      "options": [
        {
          "asset": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
          "index": 0,
          "amount": "5000",
          "scheme": "exact",
          "usable": false,
          "network": "eip155:1",
          "reasons": [
            "network eip155:1 is not configured",
            "asset 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48 is not held"
          ]
        },
        {
          "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
          "index": 1,
          "amount": "40000",
          "scheme": "exact",
          "usable": false,
          "network": "eip155:8453",
          "reasons": [
            "the amount 40000 exceeds the configured maximum 10000"
          ]
        },
        {
          "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
          "index": 2,
          "amount": "3000",
          "scheme": "upto",
          "usable": false,
          "network": "eip155:8453",
          "reasons": [
            "scheme upto is not implemented"
          ]
        }
      ],
      "complete": true,
      "findings": [
        {
          "code": "NO_USABLE_PAYMENT_OPTION",
          "detail": "None of the 3 accepted payment(s) can be satisfied by this buyer. [0] network eip155:1 is not configured; asset 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48 is not held [1] the amount 40000 exceeds the ..."
        },
        {
          "code": "UNSUPPORTED_SCHEME",
          "detail": "UNSUPPORTED_SCHEME prevents a payment being constructed whatever the buyer supports.",
          "severity": "blocking"
        }
      ],
      "request_id": "example-request",
      "service_id": "x402_asset_network_compatibility",
      "assumptions": [
        "Nothing is fetched and nothing is paid. The buyer profile is a declaration of what they support, not a wallet query.",
        "Amounts are compared exactly as integers, so a large atomic amount is never collapsed by floating point.",
        "The cheapest usable option is named because a buyer facing several accepted payments will otherwise take the first one listed."
      ],
      "limitations": [
        "Compatibility between the challenge and the declared buyer profile. Whether the buyer actually holds a balance is not knowable here and is not checked.",
        "payable_by_buyer is true only when the challenge decoded, nothing blocking was found, and at least one accepted payment matches the profile."
      ],
      "observed_at": "2026-10-02T00:00:00.000Z",
      "accept_count": 3,
      "buyer_assets": [
        "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913"
      ],
      "not_examined": [],
      "payment_sent": false,
      "finding_count": 2,
      "buyer_networks": [
        "eip155:8453"
      ],
      "service_version": "1.0.0",
      "findings_by_code": {
        "UNSUPPORTED_SCHEME": 1,
        "NO_USABLE_PAYMENT_OPTION": 1
      },
      "payable_by_buyer": false,
      "recommended_option": null,
      "usable_option_count": 0
    }
  }
}