Readability scores for English text
Readability scores for English text - Flesch reading ease, Flesch-Kincaid, Gunning Fog, SMOG, ARI and Coleman-Liau, grade level, reading time and advice
Answers HTTP 404 without x402 payment termsour last check, 2026-10-18
0 of 1checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/text/readability
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | no x402 terms | 404 | 488 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"text": "The quick brown fox jumps over the lazy dog. It was a bright cold day in April, and the clocks were striking thirteen. Complex organisational communication frequently necessitates comprehensive simplification."
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"properties": {
"text": {
"description": "English text to analyse, 20-5000 characters",
"type": "string"
}
},
"required": [
"text"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"advice": {
"description": "The advice text",
"type": "string"
},
"automated_readability_index": {
"description": "Automated readability index",
"type": [
"number",
"null"
]
},
"avg_syllables_per_word": {
"description": "Avg syllables per word",
"type": [
"number",
"null"
]
},
"avg_words_per_sentence": {
"description": "Avg words per sentence",
"type": [
"number",
"null"
]
},
"characters_in_words": {
"description": "Characters in words",
"type": [
"number",
"null"
]
},
"coleman_liau": {
"description": "Coleman liau",
"type": [
"number",
"null"
]
},
"complex_word_percent": {
"description": "Complex word, as a percentage",
"type": [
"number",
"null"
]
},
"complex_words": {
"description": "Complex words",
"type": [
"number",
"null"
]
},
"consensus_grade": {
"description": "Consensus grade",
"type": "number"
},
"flesch_kincaid_grade": {
"description": "Flesch kincaid grade",
"type": "number"
},
"flesch_reading_ease": {
"description": "Flesch reading ease",
"type": "number"
},
"gunning_fog": {
"description": "Gunning fog",
"type": "number"
},
"longest_sentence_words": {
"description": "Longest sentence words",
"type": [
"number",
"null"
]
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"reading_level": {
"description": "Reading level",
"type": "string"
},
"reading_time_minutes": {
"description": "Reading time, in minutes",
"type": "number"
},
"sentences": {
"description": "Sentences",
"type": "number"
},
"smog_index": {
"description": "Smog index",
"type": [
"number",
"null"
]
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"speaking_time_minutes": {
"description": "Speaking time, in minutes",
"type": [
"number",
"null"
]
},
"syllables": {
"type": [
"number",
"null"
]
},
"words": {
"description": "Words",
"type": "number"
}
},
"required": [
"words",
"flesch_reading_ease",
"reading_level"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}