File what you want to buy from an agent-facing API and cannot buy today

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xb0ae6a9bd7a573ddda58db6c28622417e8ca2099",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 120
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "expected_calls_per_month": 2000,
          "kind": "country",
          "max_price_usd": 0.05,
          "value": "PT",
          "want": "Portuguese company register lookup by NIPC"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "checked_at": "2026-07-29T08:00:00.000Z",
          "intent_id": "want_a1b2c3d4e5f6",
          "note": "Recorded as a paid intent. The $0.01 fee exists to keep intents honest — it is not a purchase of the capability, not a subscription, and no promise that this gets built. Your intent is counted in the paid /x402/demand-report, aggregated and anonymised: your wallet is stored only as a keyed hash and the text of your intent is never resold verbatim. Coverage identifiers (kind/value) are what make an intent countable, so send them if you can.",
          "query": {
            "expected_calls_per_month": 2000,
            "kind": "country",
            "max_price_usd": 0.05,
            "value": "PT",
            "want": "Portuguese company register lookup by NIPC"
          },
          "recorded": true
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "headers": {
              "additionalProperties": {
                "type": "string"
              },
              "type": "object"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "queryParams": {
              "additionalProperties": {
                "type": "string"
              },
              "type": "object"
            },
            "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"
    }
  }
}

curl "https://agentdata-api.sander-van-aard.workers.dev/agent/want"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://agentdata-api.sander-van-aard.workers.dev/agent/want");
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://agentdata-api.sander-van-aard.workers.dev/agent/want")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header