verified owner 1/1 uptime 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.

20000 (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": "20000",
    "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/15817.json, and this resource appears in /discovery/resources and /discovery/search.