Singularity Layer MCP

Connects Claude to the Singularity Layer marketplace and x402 payment infrastructure. You get discovery tools for browsing listings and ERC-8004 agents without auth, plus authenticated operations for managing endpoints, products, and fundraiser campaigns using personal access tokens. The payment flow tools let you request 402 challenges and complete endpoint creation, top-ups, and public product purchases. Useful when you're building agent workflows that need to provision paid API endpoints, purchase marketplace items, or manage x402 assets programmatically. Auth is PAT-first with legacy endpoint key support for backward compatibility.