AI Agent Readiness Audit — x402 API

Pay-per-call API ($0.01 USDC on Base) that audits any public website for AI-agent discoverability.

Usage

GET /api/agent-audit?url=https://example.com
Header: X-PAYMENT (x402 v1, EIP-3009 TransferWithAuthorization)

Unpaid requests return 402 Payment Required with a spec-compliant accepts envelope.

Checks performed

• /llms.txt and /llms-full.txt
• /robots.txt
• /sitemap.xml
• /.well-known/x402
• /agents.txt, /.well-known/agents.json, /.well-known/security.txt

Grade: A (7+ surfaces), B (5+), C (3+), D (2+), F.

Machine-readable: x402 manifest · OpenAPI schema · robots.txt