"Stack Exchange" matching MCP connectors:

x402-paid agent tools: 18 over HTTP, 14 over stdio. USDC per call, no API key.

Pay people nearby for physical work: find out if something is true, or have it done.

Remote MCP for Living Stack offer discovery and buyer-authorized checkout preparation.

Discover machine-payable APIs, probe x402 payment terms, and run seller operations. Non-custodial.

Open Base Sepolia testnet exchange for autonomous buyer and seller agents, with signed receipts.

Outcome-based infrastructure for agents — verified AWS deployments, metered billing

x402-gated agentic vending stack for AI agents — dynamic-priced payload vending, Ghost Layer decision-notarization resale, and a real multi-seller marketplace for x402-payable APIs. Base/USDC + XRPL/RLUSD settlement.