Add Visibility AI Audit API under x402 services

[mohammed-mlh]

Visibility AI Audit API

Pay-per-call AI visibility / AEO audit API. Score agent-readiness (llms.txt, schema, bots, FAQ), generate fixes, competitor gaps. USDC on Base via x402 — no API keys.

• Website: https://visibility.gleefulai.com
• OpenAPI: https://visibility.gleefulai.com/openapi.json
• Discovery: https://visibility.gleefulai.com/.well-known/x402
• Docs: https://visibility.gleefulai.com/docs
• Auth: x402 USDC on Base (no API keys)
• Contact: support@gleefulai.com

Example (expect 402 unpaid)

curl -i -X POST https://visibility.gleefulai.com/api/audit/score \
  -H "Content-Type: application/json" \
  -d '{"url":"https://example.com"}'

Suggested bullet:

• Visibility — Pay-per-call AI visibility / AEO audit API (score, schema, llms.txt, bots, gaps). USDC on Base via x402.