MusicXML render with deterministic automated QC and artifacts

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x2855fB60E630d6A9Ebe0beAE1E1d6392F630F86f",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "250000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "formats": [
            "mp3",
            "midi"
          ],
          "musicxml": "<?xml version=\"1.0\"?><score-partwise version=\"4.0\">...</score-partwise>"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "job_id": "550e8400-e29b-41d4-a716-446655440000",
          "payment": {
            "status": "verified_pending_qc"
          },
          "poll_url": "/v1/jobs/550e8400-e29b-41d4-a716-446655440000",
          "price_usd": "0.25",
          "status": "queued"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "additionalProperties": false,
              "properties": {
                "constraints_check": {
                  "description": "Optional tempo, duration, key, and mode constraints for QC.",
                  "type": "object"
                },
                "formats": {
                  "description": "MP3 for listening and MIDI for editing.",
                  "items": {
                    "enum": [
                      "mp3",
                      "midi"
                    ]
                  },
                  "minItems": 1,
                  "type": "array",
                  "uniqueItems": true
                },
                "musicxml": {
                  "description": "Complete UTF-8 MusicXML document.",
                  "type": "string"
                }
              },
              "required": [
                "musicxml",
                "formats"
              ],
              "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": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://musicwire.5432wire.com/v1/render"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://musicwire.5432wire.com/v1/render");
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://musicwire.5432wire.com/v1/render")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header