0n3
MCP servers · UCP — Universal Commerce Protocol · custom connector

Connect Grok Bot (xAI) to UCP — Universal Commerce Protocol

One line gives Grok Bot (xAI) 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 Grok Bot (xAI)'s access alone any time.

Get the line for Grok Bot (xAI)Connect UCP — Universal Commerce Protocol first

Three steps

  1. Create a free 0n3 account and connect UCP — Universal Commerce Protocol. Paste a key or sign in; it lands in your vault, encrypted.
  2. Install 0n3 into Grok Bot (xAI). xAI's always-on Grok Bot. Add 0n3 as a custom connector once, and your Bot can use every app you added, around the clock.
  3. Ask Grok Bot (xAI): whoami. Then: "List offers in UCP — Universal Commerce Protocol".
Add 0n3 to Grok Bot (desktop app)
  1. Open Grok Bot on your computer. In the sidebar, click Connect apps.
  2. At the bottom, click Add a custom connector.
  3. For Name, type 0n3. For Type, pick Remote HTTPS. For Server URL, type https://0n3.app/mcp.
  4. Under HTTP headers, add Authorization with the value Bearer <your 0n token>
  5. Click Add plugin.
Then try it: send your Bot this
  1. "Use 0n3: who am I, and which apps can you reach?"
  2. "Every weekday at 8, use 0n3 to list today's CRM appointments and new Stripe payments, and post a summary to me."

The line above carries a placeholder; 0n3.app/install mints a real key named for Grok Bot (xAI) and fills it in.

What Grok Bot (xAI) can then do in UCP — Universal Commerce Protocol

List offers · List all active products, downloads, and plans1
List offersGET /api/commerce/offers
Create checkout · Generate a Stripe Checkout session for a product slug1
Create a checkoutPOST /api/commerce/checkout
Get download link · Verify entitlement and return a signed download URL1
Get a download linkGET /api/commerce/download
List 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 serverCursor + UCP — Universal Commerce ProtocolMCP serverVS Code (Copilot) + UCP — Universal Commerce ProtocolMCP serverWindsurf + UCP — Universal Commerce ProtocolMCP server

Grok Bot (xAI) with other apps

Hostinger363 endpointsPipedrive310 endpointsTelegram132 endpointsResend67 endpointsSquare57 endpointsLinkedIn50 endpointsSlack45 endpointseBay42 endpointsCRM35 endpointsFigma32 endpointsCloudConvert32 endpointsMicrosoft 36526 endpoints