A GitHub-native marketplace that turns any GitHub org into a storefront for AI agent skills: sellers publish a SKILL.md with pricing, and buyers pay via x402 (USDC on Base) or PayPal for instant, scoped access. The agent-facing buyer app ("Shopkeeper") is still listed as coming soon, so only the seller side is confirmed live.
infrastructure
x402; USDC on Base; GitHub Apps; PayPal fallback for human buyers