Show and tell: MCP Billing Gateway — reusable billing layer for paid MCP servers

[sapph1re]

Hey Eduard,

We've been using DesktopCommanderMCP in our agentic workflows — great tool. We noticed you have a paid tier, which is exactly the right call for an MCP server with this much real-world value.

We ran into the same challenge on FinData MCP — our financial data MCP server — and ended up building a reusable billing layer so we wouldn't have to wire up payment handling from scratch each time.

It's called MCP Billing Gateway. Open-source SDK, self-hostable backend. The short version:

• Stripe subscriptions for human users (free/pro/enterprise tiers)
• x402 micropayments for agent-to-agent calls
• Per-server usage tracking and tier enforcement
• Drop-in middleware: one check before your server handles the request

We built it for ourselves and thought it might be useful for other MCP operators who are already thinking about monetization structure. Sharing here in case it saves someone a few weeks.

https://github.com/sapph1re/mcp-billing-gateway-sdk