Render a public URL or an HTML string in headless Chromium and return a PNG, JPEG or PDF (

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x3F5115236f25618c16021E983acaAF2CAaa1A35e",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  }
]

{
  "type": "object",
  "properties": {
    "format": {
      "type": "string"
    },
    "content_type": {
      "type": "string"
    },
    "bytes": {
      "type": "integer"
    },
    "width": {
      "type": "integer"
    },
    "height": {
      "type": "integer"
    },
    "final_url": {
      "type": "string"
    },
    "title": {
      "type": "string"
    },
    "blocked_requests": {
      "type": "integer",
      "description": "Sub-requests refused because they pointed at a non-public host or scheme"
    },
    "content_base64": {
      "type": "string"
    },
    "elapsed_ms": {
      "type": "integer"
    }
  },
  "required": [
    "format",
    "content_type",
    "bytes",
    "content_base64"
  ]
}

curl "https://qf-api.quietforge-studio.workers.dev/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://qf-api.quietforge-studio.workers.dev/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://qf-api.quietforge-studio.workers.dev/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