Monetize an MCP Server with x402: The Complete Guide
How to monetize an MCP server with x402 micropayments: HTTP 402 flow, MCP auth vs payment, pricing, a full Rust implementation, and managed gateways.
- Implement the full x402 payment flow (402 response, payment payload, facilitator verify and settle) on any HTTP-served MCP server
- Decide how MCP authentication (OAuth 2.1, API keys) and per-call payment should layer for your server, including anonymous-but-paid access
- Pick a service worth charging for, price it against real per-call market anchors, and ship a testnet demo that switches to mainnet USDC with one config change