Before-payment check for China quotes to US/EU: costs, low-value rules, and compliance blockers.
Streamable HTTP
https://china-sourcing-router.naijunyu.chatgpt.site/api/trade-preflight-mcpclaude mcp add --transport http trade-preflight https://china-sourcing-router.naijunyu.chatgpt.site/api/trade-preflight-mcpThis server publishes no installable package.