Dev.to
5/11/2026

An MCP server that charges your AI a penny per call
Short summary
A developer built x402-extract-mcp, an MCP server that extracts structured product data from any URL and charges AI agents $0.01 USDC per call using the x402 HTTP 402 protocol for on-chain settlement on Base Sepolia — no API keys, accounts, or subscriptions required. The tool installs as a single config block in Claude Desktop, Cursor, or Windsurf, and returns clean schema.org/Product JSON with pricing, availability, and variants. Agents pay per-call instead of subscription tiers, with the MCP client open-source (MIT) and backend hosted on Railway.
- •x402-extract-mcp: MCP server extracts structured product data via Claude Haiku + headless Chromium rendering
- •Pay-per-call USDC settlement ($0.01/call) on Base Sepolia blockchain with x402 protocol — no API keys or accounts
- •Single config block install for Claude Desktop, Cursor, Windsurf; agent wallets pay directly on-chain
Generated with AI, which can make mistakes.
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