Text Readability Score

Text Readability Score API

Text AnalysisIncluded in Subscription

Readability Score is a simple tool for calculating the readability score of text. It returns the readability score based on various readability formulas.

Online
1 credit/call
99.9% uptime
Docs
avg: 609ms|p50: 569ms|p75: 636ms|p90: 716ms|p99: 877ms
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Online
1 credit/call
99.9% uptime
Docs
avg: 609ms|p50: 569ms|p90: 716ms|p99: 877ms

Live Test API

Try out the Text Readability Score with a live request and see the response in real-time.

API Request

POST
https://api.apiverve.com
Parameters

API Response

200 OK
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{
  "status": "ok",
  "error": null,
  "data": {
    "textCounts": {
      "syllableCount": 82,
      "lexiconCount": 49,
      "sentenceCount": 1
    },
    "readability": {
      "fleschReadingEase": 13.28,
      "fleschKincaidGrade": 23.6,
      "gunningFog": 26.95,
      "colemanLiauIndex": 13.19,
      "smogIndex": 22.08,
      "automatedReadabilityIndex": 27.8,
      "daleChallReadabilityScore": 17
    },
    "readabilityText": {
      "fleschReadingEase": "very confusing",
      "daleChallReadabilityScore": "average 13th to 15th-grade (college) student"
    }
  }
}

Multiple Access Methods

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JSON

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XML

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YAML

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CSV

Comma-separated values

BETA

GraphQL

Query language for APIs

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MCP

AI agent integration

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NuGet

.NET / C#
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Python
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PyPIDocs

NPM

Node.js / JavaScript
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NPMDocs
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Frequently Asked Questions

Get answers to common questions about the Text Readability Score API

What does the Text Readability Score API do?

Readability Score is a simple tool for calculating the readability score of text. It returns the readability score based on various readability formulas. The API returns structured data in JSON, XML, or YAML format, making it easy to integrate into any application or workflow.

How fast is the Text Readability Score API?

The Text Readability Score API has an average response time of 609ms, with a median (p50) of 569ms and 99th percentile of 877ms. Our infrastructure maintains 99.9% uptime with servers distributed globally for low latency.

How much does the Text Readability Score API cost?

Each call to the Text Readability Score API uses 1 credit. The free tier includes 100 credits per month. Paid plans start at $29.99/month with higher limits, and enterprise plans offer custom pricing with priority support.

How do I authenticate Text Readability Score API requests?

Include your API key in the request header as X-API-Key: your_key_here. All requests are made over HTTPS for security. You can get your API key by signing up for a free account.

What HTTP methods does Text Readability Score support?

The Text Readability Score API supports POST requests. Use POST for sending larger payloads or complex data structures. Check our documentation for detailed parameter specifications.

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