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x402-mcp

https://www.npmjs.com/package/x402-mcp

Our Verdict

Gold402 Verified. Hand-reviewed and on the curated list — curation is the bar.

Vercel's library for adding x402 paywalls to MCP servers via the AI SDK. The `paidTool` primitive — declare a price on any MCP tool, require payment before execution. ([Blog](https://vercel.com/blog/introducing-x402-mcp-open-protocol-payments-for-mcp-tools))

SDK / Library · SDKs & Libraries

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