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Free prototype tier. No card required.

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ShopMCP is an open-source prototype. PayPal checkout runs in Sandbox mode only.

One AI. Every Store. The Best Deal.

• Compare the same product across retailers with a deterministic matching engine
• Totals include shipping — and missing data is flagged, never invented
• Plug ChatGPT or Claude in through a remote MCP server
• Pay the demo merchant with PayPal Sandbox, captured and verified server-side