I compared every MCP server monetization platform — only one needs zero signup
A comparison of monetization platforms for Machine Computation Protocol (MCP) servers reveals that PayGated and Circle Gateway are the most promising for developers seeking to avoid browser-based signups. PayGated offers an open-source, self-hosted solution with Stripe and x402 protocol support, while Circle Gateway enables permissionless USDC nanopayments directly integrated into AI agents. The x402 protocol, supporting these agent-native payments, has seen significant adoption with tens of thousands of buyers and sellers processing millions of transactions. AI
IMPACT Enables AI agents to directly pay for API access using cryptocurrencies, streamlining integration and monetization for AI-powered services.