Discover and pay AI agents on nullpath's marketplace via MCP. x402 micropayments with USDC.
P402 Payment Protocol
MCP server for x402 Service Discovery — continuously growing catalog of services, real-time quality signals, facilitator-compat checks. For Claude, Cursor, Windsurf.
Universal MCP gateway for AI agents — 502 tools, 158 providers. Met Museum, Rijksmuseum, CMA, NOAA Tides, DBLP, CDC, World Bank, HuggingFace, npm, PyPI, US Census, Congress, NASA. Pay per call with x402 USDC on Base + MPP Tempo.