The billing layer for MCP servers
Ship paid MCP tools in five lines of Python.
Drop a decorator on your tool. Auth, paywalls, quotas, and Stripe payouts — handled. Works in Claude, Cursor, Goose, VS Code, and every other MCP client.
Free for hobby projects. No credit card to start.
from mcp_billing import billed_tool
@billed_tool(plan="pro", price_per_call=0.01, daily_quota_free=100)
async def search_docs(query: str):
...That's the entire integration. Drop it on any tool. Done.
Three steps. No infrastructure.
We handle OAuth, plan gating, metering, payments, refunds, and tax. You write tools.
01
Decorate your tool
Add @billed_tool(price_per_call=0.01) to any async function. Pip-install the SDK; that's the whole code change.
02
Bring your Stripe
Paste a Stripe key, we wire up the rest. Customers pay you directly — we never sit between you and your money.
03
You own everything
Your brand on the checkout page. Your name on the customer's statement. Your customer relationship. We're just the plumbing.
Built to outlast Claude-only solutions.
The MCP ecosystem is moving fast. We're betting on the parts that won't change: cross-client compatibility, regional payments, and developer ergonomics.
Cross-LLM, not Claude-only
Works in Claude, ChatGPT, Cursor, Goose, VS Code, Continue — every MCP-compliant client. One billing layer for all of them.
OAuth 2.1 + MCP Auth spec
Native single-sign-on inside the MCP client. End-users never paste an API key. Your auth ages with the protocol.
APAC payment rails
PromptPay (Thailand) on day one. GCash, GoPay, Rabbit LINE Pay, DANA, TrueMoney coming. Lower fees and higher conversion than Stripe-only competitors.
You own the customer
Customers pay your Stripe directly. Your brand on the receipt. Your name on the statement. If you ever leave us, your subscriptions come with you.
Built for builders
Start free, no credit card. Plans only kick in when your project is making real money — not when you're tinkering on a Saturday.
Open by default
SDK is Apache-2.0. The decorator is six lines of Python you can read. Our entire money-flow and data-handling is documented in plain English.
Build something this weekend.
Free for hobby projects. Plans grow with your project — only when you start earning real money. No credit card to start.