MCP App StoreMCP App Store
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Integrate x402 micropayment walls into Node.js/Express APIs using USDC on Base L2 for machine-to-machine monetization.
Adds the ability to monetize API endpoints and MCP servers by requiring USDC micropayments via the x402 standard on the Base L2 network. It provides a middleware wrapper for Express.js that validates payments before allowing request execution.
Use this skill when implementing payment barriers for APIs, monetizing a newly created MCP server, or specifically requiring USDC micropayments for premium endpoint access.
X402Wrapper middleware into Express routes, including configuration for RPC URLs and wallet addresses.Claude Code, Cursor, Codex CLI, and any agent capable of modifying Node.js/Express codebases.
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