verified owner x402 eip155:8453

Build a finished, print-ready sudoku book (30-60 puzzles): title page with the name and de

Build a finished, print-ready sudoku book (30-60 puzzles): title page with the name and dedication you supply, how-to-solve page, puzzles grouped by level with section dividers, solutions at the back; delivered as a zip (A4 PDF, US Letter PDF, puzzles.json, README) in base64. Standard (4 per page) or large print (2 per page). Every puzzle solver-verified unique and technique-graded. Typography only, no images.

250000 (raw units)

price

—

calls / 30d

—

unique payers

2026-09-21

updated

Provider

Quietforge Docs API · verified

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x3F5115236f25618c16021E983acaAF2CAaa1A35e",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "250000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string"
    },
    "count": {
      "type": "integer"
    },
    "pages": {
      "type": "integer"
    },
    "size": {
      "type": "string"
    },
    "seed": {
      "type": "integer"
    },
    "files": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "content_type": {
      "type": "string"
    },
    "bytes": {
      "type": "integer"
    },
    "content_base64": {
      "type": "string"
    },
    "elapsed_ms": {
      "type": "integer"
    }
  },
  "required": [
    "name",
    "count",
    "pages",
    "content_type",
    "bytes",
    "content_base64"
  ]
}

Use it

curl

curl "https://qf-api.quietforge-studio.workers.dev/v1/sudoku/book"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://qf-api.quietforge-studio.workers.dev/v1/sudoku/book");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://qf-api.quietforge-studio.workers.dev/v1/sudoku/book")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/15749.json, and this resource appears in /discovery/resources and /discovery/search.