Readability Score API - REST + MCP, Free Tier

#readability #text #flesch #nlp

Readability Score API

Score text readability with Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, ARI. Grade level, reading time, syllable count. Supports English/Korean.

Quick Start

# Health check
curl https://api.lazy-mac.com/readability-score-api/health

# API info
curl https://api.lazy-mac.com/readability-score-api

Endpoints

{'path': '/score', 'method': 'POST', 'description': 'Get all readability scores'}
{'path': '/grade', 'method': 'POST', 'description': 'Get grade level and reading time'}
{'path': '/health', 'method': 'GET', 'description': 'Health check'}

Pricing

Plan	Price	Features
Free	$0/mo	100 req/day, core endpoints
Pro	$Free/mo	Unlimited, all endpoints, MCP

MCP Integration

This API supports the Model Context Protocol (JSON-RPC 2.0):

curl -X POST https://api.lazy-mac.com/readability-score-api/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"tools/list","id":1}'