# mcpaiprotocol.online — AEO Audit API

> First AEO (Answer Engine Optimization) audit tool exposed as MCP server for AI agents. Audit any URL for AI agent readability. Returns score 0-100, grade A+ to F, breakdown across 6 dimensions, and prioritized recommendations.

## Pricing
- Free tier: 50 calls/day per agent (no signup)
- Pay-as-you-go: $0.05 USDC per audit (Base L2 via X402 protocol)
- Pro: $29/mo unlimited (coming soon)

## MCP Endpoint
URL: https://mcpaiprotocol.online/mcp
Transport: HTTP (JSON-RPC 2.0)
Methods: initialize, tools/list, tools/call, ping, notifications/initialized

## Tools

### aeo_audit
Audit a single URL for AI readability.
Input: { url: string }
Output: { score: 0-100, grade: A+|A|B|C|D|F, breakdown: {...}, recommendations: [...] }

### aeo_compare
Compare multiple URLs side-by-side (max 5).
Input: { urls: string[] }
Output: array of audit results

## REST Fallback
GET https://mcpaiprotocol.online/api/v1/audit?url=https://example.com
GET https://mcpaiprotocol.online/api/v1/health

## Scoring Breakdown (100 pts total)
- 40 pts: llms.txt present at root
- 15 pts: robots.txt allows AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Google-Extended)
- 20 pts: JSON-LD structured data (Schema.org)
- 10 pts: Meta description (50+ chars) + Open Graph tags
- 10 pts: Semantic HTML (h1, article, main)
- 5 pts: Schema.org microdata

## How to Use (Claude / Cursor / GPT)
Add to MCP config:
{
  "mcpServers": {
    "aeo-audit": {
      "url": "https://mcpaiprotocol.online/mcp"
    }
  }
}

## Payment (X402)
Per-call payment: 0.05 USDC on Base L2 (chain ID 8453)
USDC contract: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Payment address: 0x47b82a02963CDe4f9625B9C583B41c72956Bc2E8
Send X-PAYMENT header (base64-encoded JSON) with tx_hash.

## Contact
- Homepage: https://mcpaiprotocol.online
- API health: https://mcpaiprotocol.online/api/v1/health
- LLMs.txt: https://mcpaiprotocol.online/llms.txt
- Version: 1.0.0