readability score, text readability, Flesch reading ease, reading grade level, r
readability score, text readability, Flesch reading ease, reading grade level, reading level, text difficulty, reading age, readability index, text complexity, readability analysis, reading grade, reading ease, text level. Analyze text readability with multiple metrics including reading ease, grade level, syllable and sentence counts. For AI agents content optimization, education tools, writing assistants, accessibility checks. Accepts payment on Base or Solana — either network works.
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://api.x402node.dev/text/readability
| Category | Market data |
|---|---|
| Provider host | api.x402node.dev |
| 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 |
|---|---|---|---|---|
| 2026-10-03 | valid payment request | 402 | $0.0022 | 475 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"text": "string"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"text": {
"description": "Input text (required)",
"type": "string"
}
},
"required": [
"text"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}