# NexusAPI Text Readability Analyzer

> NexusAPI Text Readability Analyzer is a paid API for AI agents from nexus-api-virid.vercel.app, paid per call via x402, $0.067179/call, status unknown (last checked 2026-09-15).

Analyzes a piece of text and returns readability metrics and scores to assess how easy it is to read and understand.

## Facts

- Endpoint: POST https://nexus-api-virid.vercel.app/api/tools/text/readability
- Price: $0.067179/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-text-readability-analyzer-cfbb2313
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oCUQU4ucdmbYsCISRNHn8

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability nexusapi-text-readability-analyzer-cfbb2313 -d '<json body>'
```

Example prompt: Can you check the readability of this paragraph and tell me what grade level it's written at: 'The utilization of advanced linguistic constructs can obfuscate the intended communicative purpose for a generalized audience.'

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call readability score without setting up API keys or managing subscriptions. Ideal for AI agents that need to programmatically assess text complexity as part of a content pipeline, editorial workflow, or educational tool, especially when the calling infrastructure supports x402 USDC micropayments on Base.

## Known failure modes

- Empty or missing text input returns an error
- Very short text (e.g. single word) may produce unreliable scores
- Non-English text may return inaccurate or unsupported results
- Payment failure in USDC results in HTTP 402 and no analysis
- Request timeout for extremely long documents

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

Returns readability metrics for the submitted text, likely including scores such as Flesch Reading Ease, Flesch-Kincaid Grade Level, and other complexity indicators like average sentence length, syllable count, and reading difficulty classification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexusapi-text-readability-analyzer-cfbb2313/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-virid.vercel.app](https://www.zero.xyz/host/nexus-api-virid.vercel.app/llms.txt)