Answer Engine Optimization (AEO) is the practice of optimizing websites so AI agents — like Claude, GPT, Perplexity — can read, understand, and cite your content accurately.

How do AI agents pay?

Agents pay with USDC on Base L2 via the X402 protocol. Each audit costs $0.05 USDC. Free tier: 50 calls/day per agent.

What is the MCP endpoint?

POST https://mcpaiprotocol.online/mcp — JSON-RPC 2.0 endpoint. Methods: initialize, tools/list, tools/call, ping.

Is there a free tier?

Yes — 50 free audit calls per agent per day. No signup required.

mcpaiprotocol.online — AEO Audit API for AI Agents

Name: mcpaitools AEO Audit
Price: 0.05 USD

What is AEO?

Answer Engine Optimization (AEO) is the practice of making your website readable by AI agents — Claude, GPT, Perplexity, Google AI Overviews. Just like SEO made sites readable by Google, AEO makes sites readable by AI.

This API scores your site across 6 dimensions and tells you exactly what to fix.

Scoring breakdown (100 pts total)

40 pts — llms.txt at domain root

15 pts — robots.txt allows AI crawlers (GPTBot, ClaudeBot, etc.)

20 pts — JSON-LD structured data (Schema.org)

10 pts — Meta description + Open Graph tags

10 pts — Semantic HTML (h1, article, main)

5 pts — Schema.org microdata

Try it now (free)

50 free calls/day per agent. No signup.

# MCP (recommended for AI agents)
curl -X POST https://mcpaiprotocol.online/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"aeo_audit","arguments":{"url":"https://example.com"}}}'

# REST fallback
curl "https://mcpaiprotocol.online/api/v1/audit?url=https://example.com"

How to add to Claude / Cursor / GPT

Add this to your MCP config:

{
  "mcpServers": {
    "aeo-audit": {
      "url": "https://mcpaiprotocol.online/mcp",
      "transport": "http"
    }
  }
}

Pricing

Free

$0

✓ 50 calls/day per agent
✓ Full scoring breakdown
✓ MCP + REST access

Pay-as-you-go

$0.05/call

✓ Unlimited calls
✓ Pay per audit (USDC Base)
✓ X402 protocol

Pro

$29/mo

✓ Unlimited audits
✓ Priority support
✓ (coming soon)