Add X402 Plaza Services — live x402 plaza: extraction + sealed security audits (Base USDC, refunds on failure)

[MintMachineHQ]

X402 Plaza Services — a live, production x402 plaza: strict HTML→JSON extraction + sealed static security audits for agent code.

• Live: https://oncoming-headband-unsoiled.ngrok-free.dev/catalog
• Prices: 0.05 USDC (extract) / 100 USDC (audit) on Base, verified on-chain (no mock payments)
• Reliability: self-auditing validator with auto-retry, source citations on every field, refund on failure
• Integrity: every audit report sealed with HMAC-SHA256; free verification via POST /verify
• Trust wall: https://oncoming-headband-unsoiled.ngrok-free.dev/reputation
• Sample sealed report (demo): https://oncoming-headband-unsoiled.ngrok-free.dev/report/demo-drainer
• Crawler-friendly: GET /catalog, GET /x402-manifest.json, robots.txt
• MCP-native: installable as an agent tool via mcp_server.py in our repo

Independent project built on the open x402 protocol; not affiliated with the x402 Foundation.
Rebrand note: formerly submitted as "TollBooth Extract" — same endpoints, same wallet, same seals.

[MintMachineHQ]

Live specimen of a sealed audit report: https://oncoming-headband-unsoiled.ngrok-free.dev/report/demo-drainer — verify its seal via POST /verify. Trust wall: https://oncoming-headband-unsoiled.ngrok-free.dev/reputation