Generate up to 20 QR codes in one call; returns a per-item record with QR metadata and the

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xFFc458dB291b4ABcE020fE3de4f91F2770E537b1",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "items": [
            {
              "data": "https://payapi.market",
              "label": "home"
            },
            {
              "data": "https://payapi.market/docs",
              "label": "docs"
            }
          ]
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "count": 2,
          "results": [
            {
              "back_color": "#ffffff",
              "border": 4,
              "box_size": 10,
              "data": "https://payapi.market",
              "error_correction": "M",
              "fill_color": "#000000",
              "format": "png",
              "height": 330,
              "image_base64": "iVBORw0KGgoAAAANSUhEUgAAASIAAAEiCAYAAABdvt+2AAAABmJLR0QA/wD/AP+gvaeTAAAF...",
              "index": 0,
              "label": "home",
              "modules": 25,
              "size_bytes": 512,
              "version": 2,
              "width": 330
            },
            {
              "back_color": "#ffffff",
              "border": 4,
              "box_size": 10,
              "data": "https://payapi.market/docs",
              "error_correction": "M",
              "fill_color": "#000000",
              "format": "png",
              "height": 330,
              "image_base64": "iVBORw0KGgoAAAANSUhEUgAAASIAAAEiCAYAAABdvt+2AAAABmJLR0QA/wD/AP+gvaeTAAAF...",
              "index": 1,
              "label": "docs",
              "modules": 25,
              "size_bytes": 548,
              "version": 2,
              "width": 330
            }
          ]
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "properties": {
                "items": {
                  "description": "Up to 20 items, each with 'data' (text/URL to encode) and an optional 'label'.",
                  "items": {
                    "properties": {
                      "data": {
                        "type": "string"
                      },
                      "label": {
                        "type": "string"
                      }
                    },
                    "required": [
                      "data"
                    ],
                    "type": "object"
                  },
                  "maxItems": 20,
                  "type": "array"
                }
              },
              "required": [
                "items"
              ],
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "count": {
                  "description": "Number of items processed.",
                  "type": "integer"
                },
                "results": {
                  "description": "Per-item records; each carries index, label, data, QR meta, and image_base64 (or an error field).",
                  "type": "array"
                }
              },
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://qr-api-production-1836.up.railway.app/generate/batch"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://qr-api-production-1836.up.railway.app/generate/batch");
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://qr-api-production-1836.up.railway.app/generate/batch")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header