# China Sourcing Audit

> Verify Chinese suppliers with evidence before money moves. Factory-vs-trader detection, payment red flags, landed cost, certification fraud. Pay-per-call in USDC on Base via x402 (HTTP 402).

## What this is
Machine-payable API for overseas importers and AI agents vetting Chinese suppliers. No account, no API key: call an endpoint, receive HTTP 402, pay $0.03 USDC on Base, get a structured evidence-backed answer.

## Paid endpoints (x402, $0.03 USDC/call unless noted)
- POST https://x402-stable-door.lu7897859.workers.dev/verify_supplier — Is this Chinese company a real factory or a trading middleman? Returns risk signals + evidence + next verification steps.
- POST https://x402-stable-door.lu7897859.workers.dev/payment_red_flags — Payment-fraud patterns before money moves offshore.
- POST https://x402-stable-door.lu7897859.workers.dev/landed_cost_calc — True landed cost incl. tariffs and fees.
- POST https://x402-stable-door.lu7897859.workers.dev/certification_check — Fake or misattributed certifications/badges.
- POST https://x402-stable-door.lu7897859.workers.dev/audit_checklist — Structured pre-purchase audit checklist.
- POST https://x402-stable-door.lu7897859.workers.dev/full_supplier_audit — Complete evidence-chain audit report.

## Discovery
- OpenAPI: https://x402-stable-door.lu7897859.workers.dev/openapi.json
- x402 well-known: https://x402-stable-door.lu7897859.workers.dev/.well-known/x402.json
- MCP server-card: https://x402-stable-door.lu7897859.workers.dev/.well-known/mcp/server-card.json
- MCP endpoint (free tier): https://x402-stable-door.lu7897859.workers.dev/mcp

## Contact
lu7897859@gmail.com