Pay-per-use B2A discovery API for AI agents — built on x402 (USDC micropayments on Base)
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.
x402 Payment Protocol SDKs - Dead simple micropayments for APIs and AI agents
Open-source marketplace where AI agents autonomously discover, negotiate, and purchase API services. x402 USDC payments, MCP bridge, reputation engine. MIT license.