Check whether a specific date is a public holiday in a country (optionally by state/region

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "country": "US",
          "date": "2024-01-01",
          "region": "example",
          "state": "example"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "additionalProperties": false,
              "properties": {
                "country": {
                  "description": "ISO 3166-1 alpha-2 country code, e.g. \"US\", \"DE\", \"GB\".",
                  "pattern": "^[A-Za-z]{2}$",
                  "type": "string"
                },
                "date": {
                  "description": "Date to check (YYYY-MM-DD).",
                  "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
                  "type": "string"
                },
                "language": {
                  "description": "Optional 2-letter language for holiday names (e.g. \"en\").",
                  "pattern": "^[A-Za-z]{2}$",
                  "type": "string"
                },
                "region": {
                  "description": "Optional sub-region code, where the country/state defines one.",
                  "type": "string"
                },
                "state": {
                  "description": "Optional state/province code (e.g. \"CA\" for US-California, \"BY\" for DE-Bavaria).",
                  "type": "string"
                },
                "types": {
                  "description": "Optional filter: only these holiday types. Defaults to all.",
                  "items": {
                    "enum": [
                      "public",
                      "bank",
                      "school",
                      "optional",
                      "observance"
                    ],
                    "type": "string"
                  },
                  "type": "array"
                }
              },
              "required": [
                "country",
                "date"
              ],
              "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"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://holidays.openverbs.com/v1/check"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://holidays.openverbs.com/v1/check");
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://holidays.openverbs.com/v1/check")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header