verified owner x402 eip155:8453

Lay out 8-30 clue/answer pairs into one connected freeform crossword (no black squares) an

Lay out 8-30 clue/answer pairs into one connected freeform crossword (no black squares) and return it as JSON: the letter grid, every slot with row/col/direction, standard row-major crossword numbering, Across and Down clue lists and the stats. A verifier proves every run of letters is exactly one supplied answer and every answer appears once. Deterministic per seed. For personalised puzzle gifts, newsletters, classroom sheets and games.

$0.02

price

—

calls / 30d

—

unique payers

2026-09-22

updated

Provider

Quietforge Docs API · verified

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x3F5115236f25618c16021E983acaAF2CAaa1A35e",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "amountUsd": 0.02,
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "type": "object",
  "properties": {
    "title": {
      "type": "string"
    },
    "subtitle": {
      "type": "string"
    },
    "seed": {
      "type": "integer"
    },
    "entries": {
      "type": "integer"
    },
    "rows": {
      "type": "integer"
    },
    "cols": {
      "type": "integer"
    },
    "crossings": {
      "type": "integer"
    },
    "grid": {
      "type": "array",
      "items": {
        "type": "array"
      },
      "description": "rows of cells; letter or null"
    },
    "slots": {
      "type": "array",
      "items": {
        "type": "object"
      }
    },
    "numbering": {
      "type": "array",
      "items": {
        "type": "object"
      }
    },
    "clues": {
      "type": "object",
      "properties": {
        "across": {
          "type": "array"
        },
        "down": {
          "type": "array"
        }
      }
    },
    "verified": {
      "type": "boolean"
    },
    "elapsed_ms": {
      "type": "integer"
    }
  },
  "required": [
    "title",
    "entries",
    "grid",
    "slots",
    "numbering",
    "clues"
  ]
}

Example shape (generated from the schema above — not a captured live response)

{
  "title": "string",
  "subtitle": "string",
  "seed": 0,
  "entries": 0,
  "rows": 0,
  "cols": 0,
  "crossings": 0,
  "grid": [
    [
      "value"
    ]
  ],
  "slots": [
    {}
  ],
  "numbering": [
    {}
  ],
  "clues": {
    "across": [
      "value"
    ],
    "down": [
      "value"
    ]
  },
  "verified": true,
  "elapsed_ms": 0
}

Use it

curl

curl "https://qf-api.quietforge-studio.workers.dev/v1/crossword"
# -> 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/crossword");
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/crossword")
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/15997.json, and this resource appears in /discovery/resources and /discovery/search.