GRADE402
Payments & RemittanceGate402 is billing infrastructure for AI agents. Drop-in Express middleware that puts a paywall on any API endpoint using the x402 protocol, agents pay in USDC on Solana, settlement in 400ms, no banks or credit cards required. Includes a real-time dashboard for call analytics and revenue tracking, GitHub OAuth with multi-tenant auth, a published npm package, and a working MCP server demo for Claude Desktop. Built for the 11,000+ MCP server developers who have no way to monetize their tools toda