How to Use the UnionPay Open Platform MCP in Claude

Q: What if I need to check transaction status after generating a QR code in Claude Desktop?

You run generateqrcode first. Then, you immediately follow up by calling getqrtransactionstatus, passing the necessary transaction ID to confirm the payment outcome.

Q: Can I manage card tokens securely using UnionPay Open Platform and Claude Desktop?

Absolutely. You use requestcardtoken to secure a new token, or cancelcardtoken if you need to revoke access to an existing token.

Process global payments and manage card security directly within Claude Desktop.

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Connect UnionPay Open Platform MCP to Claude Desktop

Create your Vinkius account to connect UnionPay Open Platform to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup UnionPay Open Platform with Claude Desktop

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Verify user identity and binding using UnionPay Open Platform.

Run `verify_card_kyc` to check a user's identity against our secure KYC standards. This function confirms the card is correctly bound before any payment attempt. You can also use `request_card_token` to tokenize a UnionPay card for future payments, ensuring your AI workflow handles data securely and keeps sensitive details off your local logs.

Handle secure online checkout sessions.

Start an authenticated payment flow with `init_secure_payment`. This function initializes the full Secure Pay session required for most modern e-commerce transactions. For immediate payments, generate a UnionPay QR code using `generate_qr_code` and then use `get_qr_transaction_status` to confirm if the transaction succeeded or failed.

Manage payment tokens and risk status via MCP Server.

If a card token is no longer valid, run `cancel_card_token`. This cleanly unbinds an existing UnionPay card token from your system. Before processing any transaction, always call `check_card_risk_status` to query the current risk profile for that specific card. It’s critical data for preventing fraud.

Setup guide

Set up UnionPay Open Platform MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The UnionPay Open Platform MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the UnionPay Open Platform MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under unionpay-open-platform-mcp.

json

{
  "mcpServers": {
    "unionpay-open-platform-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by UnionPay Open Platform. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about UnionPay Open Platform MCP in Claude Desktop

You add the server via your Claude Desktop settings under Developer > Edit Config, or through the Extensions UI. Once connected, you can call tools like `init_secure_payment` directly in the chat input.

This server handles card tokens and KYC identity records. You are working with secure financial identifiers, so always treat the results of `verify_card_kyc` as sensitive information.

Yes. The MCP Server works regardless of whether you are connecting to a local service or using the custom connector URL for a public-facing, remote UnionPay Open Platform instance.

You run `generate_qr_code` first. Then, you immediately follow up by calling `get_qr_transaction_status`, passing the necessary transaction ID to confirm the payment outcome.

Absolutely. You use `request_card_token` to secure a new token, or `cancel_card_token` if you need to revoke access to an existing token.

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