Agent Tool FinderNo sign-inFree search over ~50k agent tools: paid x402 APIs and MCP servers. Price, networks, how to call.Subpay Document ReaderNo sign-inReads AIA G702/G703 pay applications and change orders from PDF to JSON. $0.04/page via x402.Subpay Invoice ReaderNo sign-inReads invoices and receipts from PDF to JSON and checks the math. $0.04/page via x402.