Quietforge Sudoku Book Generator

x402

Quietforge Sudoku Book Generator is a paid API for AI agents from qf-api.quietforge-studio.workers.dev, paid per call via x402, $3.99/call, status unknown (last checked 2026-10-11).

Generates a solver-verified, technique-graded sudoku puzzle book as a print-ready PDF (A4 and Letter) plus JSON puzzles and README, returned as a base64-encoded ZIP

Price / call$3.99

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-call document conversion, PDF text extraction, headless-browser rendering of a URL or HTML to PNG / JPEG / PDF, a health-probed directory of x402 pay-per-call endpoints, a sudoku generator (solver-verified, technique-graded puzzles as JSON or a print-ready A4/Letter book), a book typesetter (prose manuscript to a KDP-ready interior PDF + editable docx), a crossword generator (verified freeform grid from your clue/answer pairs as JSON or print-ready PDFs), a family tree chart layout engine (descendant / ancestor / hourglass charts from people+families JSON or a GEDCOM file, as verified layout JSON or print-ready poster and tiled PDFs), and a dataset quality audit tool (duplicates, missing values, type consistency, class imbalance, numeric outliers and PII-pattern counts for a CSV/JSON dataset, as JSON or a one-page PDF summary). Payment: x402 (USDC on Base). No signup, no API key.

Output

A base64-encoded ZIP file containing: two print-ready PDF files (A4 and Letter format), a JSON file with all puzzle grids and solutions, and a README. The response metadata includes the seed used, total puzzle count, page count, file size in bytes, content type, and elapsed generation time in milliseconds.

Example use cases

Personalized birthday gift sudoku book

“Make a sudoku book called 'Happy 70th, Margaret!' with a dedication that says 'From your loving family', 20 easy and 10 medium puzzles in large-print size — I want to give it to my mum for her birthday.”

Self-published KDP sudoku activity book

“Generate a standard-size sudoku book called 'Daily Brain Boost' with 15 easy, 15 medium, 15 hard, and 15 expert puzzles — I want to upload it to Amazon KDP as a low-content book.”

Reproducible classroom puzzle set

“Create a sudoku book titled 'Puzzle Club Vol 3' with seed 99999, 10 easy and 20 medium puzzles in standard size — I need to be able to regenerate the exact same puzzles again later for answer keys.”

Technical details

Endpoint

POSThttps://qf-api.quietforge-studio.workers.dev/v1/sudoku/book?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a fully typeset, solver-verified sudoku puzzle book with graded difficulty levels delivered as print-ready PDFs (A4 + Letter) in a single pay-per-call request. Prefer it over DIY puzzle generation when you need KDP-ready formatting, multiple difficulty tiers, a personalized title and dedication, reproducible output via seed, and both large-print and standard layouts — all without any signup or API key.

Side effects

Total puzzle count outside 30–60 range causes validation error
Individual difficulty counts exceeding maximum of 60 each rejected
Invalid size enum value (not 'standard' or 'large') causes bad request
Payment via x402 not completed or insufficient USDC balance blocks execution
Long generation time (~14 seconds) may cause client timeout if not handled
Name exceeding 50 characters or dedication exceeding 200 characters rejected

Input

Schema · Request body

Field	Type	Description
name	string	Name printed on the title page
seed	integer	Optional; deterministic rebuilds
size	string	standard = 4 puzzles per page, large = 2 (large print)
counts	object	Puzzles per level; total 30-60
dedication	string	Optional line under the title

Output

Schema · Response

{
  "type": "json",
  "example": {
    "name": "Grandma June",
    "seed": 12345,
    "size": "standard",
    "bytes": 210000,
    "count": 30,
    "files": [
      "GrandmaJune-Sudoku-Book-API-A4.pdf",
      "GrandmaJune-Sudoku-Book-API-Letter.pdf",
      "GrandmaJune-Sudoku-Book-API-puzzles.json",
      "README.txt"
    ],
    "pages": 18,
    "elapsed_ms": 14000,
    "content_type": "application/zip",
    "content_base64": "UEsDBBQ..."
  }
}

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