Text Diff API - REST + MCP, Free Tier

Text Diff API

Compare two text strings or files and get a diff. Supports line/word/char diff, unified format, HTML output. Pure algorithm, zero external deps.

Quick Start

# Health check
curl https://api.lazy-mac.com/diff-text-api/health

# API info
curl https://api.lazy-mac.com/diff-text-api

Endpoints

• {'path': '/diff', 'method': 'POST', 'description': 'Line-by-line text diff'}
• {'path': '/diff/word', 'method': 'POST', 'description': 'Word-level diff'}
• {'path': '/diff/html', 'method': 'POST', 'description': 'HTML diff output'}
• {'path': '/health', 'method': 'GET', 'description': 'Health check'}

Pricing

Plan	Price	Features
Free	$0/mo	100 req/day, core endpoints
Pro	$Free / $5/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/diff-text-api/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"tools/list","id":1}'

Get Your API Key

Get started on Gumroad — free tier available.

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