Publish Your Server

Monetize any MCP server with pay-per-tool-call billing — zero code changes required.

How It Works

Register your MCP server URL on xpay
Set pricing for each tool (or a flat rate for all tools)
Share your proxy URL — users connect via https://{your-slug}.mcp.xpay.sh/mcp
Earn USDC for every tool call

xpay sits between the user and your server as a transparent proxy. Your server stays exactly as-is — no SDK, no code changes, no x402 integration needed.

Revenue flows directly to your wallet in USDC on Base. xpay never holds your funds.

What You Get

Dedicated MCP endpoint at {your-slug}.mcp.xpay.sh
Automatic billing — every tool call is metered and charged
Discovery — your tools appear on xpay.tools and in xpay_discover
Analytics — see call volumes, revenue, and unique users
Discovery files — auto-generated llms.txt, skill.md, and .well-known/mcp.json

Getting Started

Supported Transports

Streamable HTTP (recommended) — Modern HTTP-based MCP transport
SSE — Server-Sent Events transport (legacy)

Revenue Model

Users pay per tool call from their xpay credit balance
Revenue is accumulated and can be withdrawn to your wallet at any time
No monthly fees, no minimum volumes — you earn from the first call