Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.
Full-stack L402 SDK: server middleware (Express/FastAPI/axum/net/http) + agent client with auto-pay. 4 languages (TypeScript, Python, Go, Rust). MCP server, LangChain integration, budget control. npx l402-kit-mcp
Official Dodo Payments MCP servers — dodopayments-api for live payments, subscriptions, customers, products, refunds, license keys, and usage-based billing (browser OAuth, no API key needed) and dodo-knowledge for semantic search over Dodo Payments documentation.