Connect a Client

The Zinc connector is remote and hosted. There is nothing to install and no key to configure. Add it from your client’s directory, or point the client at the URL below.

https://mcp.zinc.com/mcp

Add the connector

Claude
ChatGPT
Claude Code
Cursor / VS Code
Other clients

Find Zinc in the connectors directory and select Connect, or add it by hand under Settings → Connectors → Add custom connector with the URL above.No sign-in is asked for. The Zinc tools appear in the tools menu of any new chat, and you can search and buy right away.

claude mcp add --transport http zinc https://mcp.zinc.com/mcp

Claude Code doesn’t render cards, so you can search and read orders but the Pay & place button isn’t available. For buying from a terminal, use the Universal Checkout Skill instead.

~/.cursor/mcp.json

{
  "mcpServers": {
    "zinc": { "url": "https://mcp.zinc.com/mcp" }
  }
}

.vscode/mcp.json

{
  "servers": {
    "zinc": { "type": "http", "url": "https://mcp.zinc.com/mcp" }
  }
}

Same limitation as Claude Code: tools work, cards don’t, so there is no button to confirm a purchase.

Any client that speaks Streamable HTTP can connect to the URL directly. Clients that only support local stdio servers can bridge with mcp-remote:

{
  "mcpServers": {
    "zinc": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.zinc.com/mcp"]
    }
  }
}

Interactive cards render in clients that support MCP Apps. In clients that don’t, the same tools return structured text instead, and the Pay & place button is unavailable.

Signing in

You don’t sign in to buy. The first time you ask for your order history, the client shows a Zinc sign-in right there in the chat. Sign in with the email you paid with and the orders you placed as a guest are already on the account. The same email used at checkout and at sign-in is what links them. Sign-in is passwordless: Google, GitHub, or a magic link emailed to you. Clients register themselves automatically, so there is no client ID or secret to create.

Scope	What it unlocks
`orders:read`	Your order history, saved destinations, and order detail across conversations
`orders:write`	Orders you place while signed in are filed on your account

Once signed in, orders you place in that client land on your Zinc account, and list-addresses offers destinations you’ve shipped to before so you can reuse one without typing it.

Verifying the connection

Start a new chat and ask:

“Find me a 12 oz bag of whole bean coffee.”

A results card means the connection is live. To check sign-in, ask:

“Show my Zinc orders.”

Disconnecting

Remove the connector in your client’s settings. If you signed in, you can also revoke the client from your Zinc dashboard under Settings → General → Connected apps, which invalidates its tokens immediately.

Troubleshooting

Symptom	Cause and fix
Results arrive as text, no cards	The client doesn’t render MCP Apps. Reads work; the Pay & place button doesn’t. Use Claude or ChatGPT to buy.
”Payment not completed” after checkout	The payment page needs a shipping address and a phone number. Reopen the payment page from the card and finish both.
The retailer can’t ship to the address	The hold on your card is released and the card says why. Prepare the order again with a different address.
Order history returns an authentication error	The sign-in expired or was revoked. Ask for your orders again and sign in when prompted.
The assistant refuses a search	The item falls in a category the connector won’t sell.

Next steps

Usage guide

Search, buy, and track through conversation.

Getting Started

MCP Server

Agent Sandbox

Agent Skills

Accounts & Payments

Migrating from V1

FAQ

Add the connector

Signing in

Verifying the connection

Disconnecting

Troubleshooting

Next steps

Usage guide

​Add the connector

​Signing in

​Verifying the connection

​Disconnecting

​Troubleshooting

​Next steps

Usage guide

Add the connector

Signing in

Verifying the connection

Disconnecting

Troubleshooting

Next steps