Scores how readable a German text is
Scores how readable a German text is: Flesch Reading Ease (Amstad adaptation) plus the four Wiener Sachtextformel variants. Returns both scores, the underlying counts (sentences, words, syllables, sentence length) and the formulas, so the result can be recomputed. Syllable counting is a disclosed approximation (vowel-group heuristic), not an official certification.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
25 msmedian answer time
$0.05listed price per call
$0.05price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.ozdreamtools.de/api/readability
| Category | Everything else |
|---|---|
| Provider host | api.ozdreamtools.de |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.05 | 25 ms |
Example input (from the provider)
{
"body": {
"text": "Dieser Satz ist kurz und klar. Er l\u00e4sst sich leicht lesen."
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$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"
}