Pay-per-call MCP server. $0.01 USDC extracts schema.org/Product JSON from any URL via x402.

{
  "mcpServers": {
    "iogithubultrastarzx402-extract": {
      "command": "npx",
      "args": [
        "-y",
        "x402-extract-mcp"
      ]
    }
  }
}