Nibgate
Nibgate is an open protocol for paid content on creator-owned domains, built on Arc testnet. The @nibgate/sdk package gates any site — its server and browser modules meter access and emit unlock and payment events — while @nibgate/wallet is a Reown AppKit wallet (@reown/appkit/react) with Sign-In-With-Ethereum built on viem/siwe and a single USDC checkout. The hub backend verifies domain ownership, indexes content, and records unlock, payment, and reputation signals. On-chain, the upgradeable contracts/NibgateReputationV2.sol keeps a per-wallet content-rating registry (rating, reviewHash, unlockRef) that humans and AI agents can read directly. Payments settle in USDC over x402 through Circle Gateway. A @nibgate/cli and a pnpm-workspace monorepo round out the toolkit, so any creator can add the widget, pass site verification, and start charging.
Nibgate — open protocol for paid content on creator-owned domains. Verified discovery, x402/USDC unlock payments on Arc, reputation layer. SDK + wallet + hub.