Scores how readable a German text is: Flesch Reading Ease (Amstad adaptation) plus the fou

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x4Dd5E59475A55f1C2c0816469600663cb74cC1Dc",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "50000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "text": "Dieser Satz ist kurz und klar. Er lässt sich leicht lesen."
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "flesch_de": {
            "rating": "sehr leicht",
            "value": 94.9
          },
          "formulas": {
            "flesch_de": "180 − ASL − 58,5·ASW"
          },
          "metrics": {
            "asl": 5.5,
            "asw": 1.36,
            "es_percent": 55,
            "iw_percent": 18,
            "ms_percent": 9,
            "sentences": 2,
            "syllables": 15,
            "words": 11
          },
          "note": "…",
          "wiener_sachtextformel": {
            "rating": "sehr leicht (etwa 4. Schulstufe)",
            "wstf1": 2.8,
            "wstf2": 3.1,
            "wstf3": 2.4,
            "wstf4": 3
          }
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "properties": {
                "text": {
                  "description": "German text whose readability is to be measured",
                  "type": "string"
                }
              },
              "required": [
                "text"
              ]
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://api.ozdreamtools.de/api/readability"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://api.ozdreamtools.de/api/readability");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://api.ozdreamtools.de/api/readability")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header