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"
]
}Example shape (generated from the schema above — not a captured live response)
{
"name": "string",
"count": 0,
"pages": 0,
"size": "string",
"seed": 0,
"files": [
"string"
],
"content_type": "string",
"bytes": 0,
"content_base64": "string",
"elapsed_ms": 0
}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 headerMachine-readable
Everything on this page is also available as clean JSON at /resources/15814.json, and this resource appears in /discovery/resources and /discovery/search.