MCP servers · UCP — Universal Commerce Protocol · MCP server
Connect Cursor to UCP — Universal Commerce Protocol
One line gives Cursor your UCP — Universal Commerce Protocol account as tools: 3 endpoints, list offers, create checkout, get download link, called with your own connection. No key in the prompt, a receipt for every call, revoke Cursor's access alone any time.
Three steps
- Create a free 0n3 account and connect UCP — Universal Commerce Protocol. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Cursor. One-click install link, or the mcp.json block.
- Ask Cursor: whoami. Then: "List offers in UCP — Universal Commerce Protocol".
One-click install
The line above carries a placeholder; 0n3.app/install mints a real key named for Cursor and fills it in.
What Cursor can then do in UCP — Universal Commerce Protocol
List offers · List all active products, downloads, and plans1
List offers
GET /api/commerce/offersCreate checkout · Generate a Stripe Checkout session for a product slug1
Create a checkout
POST /api/commerce/checkoutGet download link · Verify entitlement and return a signed download URL1
Get a download link
GET /api/commerce/downloadList purchases · List the user's completed purchases0
List the user's completed purchases
UCP — Universal Commerce Protocol in other AI clients
Claude Code + UCP — Universal Commerce ProtocolMCP server + skillClaude (desktop & claude.ai) + UCP — Universal Commerce ProtocolconnectorChatGPT + UCP — Universal Commerce Protocolconnector · GPT actionCodex CLI + UCP — Universal Commerce ProtocolMCP serverGemini CLI + UCP — Universal Commerce ProtocolMCP serverVS Code (Copilot) + UCP — Universal Commerce ProtocolMCP serverWindsurf + UCP — Universal Commerce ProtocolMCP server