Register Your Server

Step-by-step guide to adding your MCP server to xpay✦ Tools.

Prepare your MCP server

Ensure your server:

Is accessible over the internet (HTTPS)
Supports Streamable HTTP or SSE transport
Responds to tools/list with your tool definitions

Go to xpay.tools and sign in. Navigate to your account settings and enable creator mode.

Register your server

Provide:

Server URL — Your MCP server’s public endpoint (e.g., https://your-server.com/mcp)
Slug — A short, unique name for your endpoint (e.g., my-service)
Receiving wallet — Your USDC wallet address on Base network
Transport type — Streamable HTTP (recommended) or SSE

Set pricing

Configure per-tool or flat-rate pricing. See Pricing Your Tools for details.

Verify and publish

xpay introspects your server to discover tools. Review the tool list and pricing, then publish.

Your server is now live at:


https://{your-slug}.mcp.xpay.sh/mcp

Tip: Test your endpoint by connecting to it from any MCP client (e.g., Cursor) before sharing it publicly.

What Happens During Registration

xpay calls tools/list on your server to discover available tools
Tool names, descriptions, and input schemas are stored
A proxy endpoint is created at {slug}.mcp.xpay.sh
Discovery files (llms.txt, skill.md) are auto-generated
Your tools become searchable on xpay.tools

Authentication

If your upstream server requires authentication (API key, bearer token, etc.), you provide the credentials during registration. xpay stores them securely and includes them when forwarding requests to your server.