How to Use the Marqeta MCP in Claude

Q: How do I connect Marqeta to Claude Desktop?

Add the server details to your claudedesktopconfig.json file. Once you restart the app, the Marqeta tools will appear in the chat interface automatically.

Manage card programs and simulate transactions directly from your Claude Desktop interface.

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Connect Marqeta MCP to Claude Desktop

Create your Vinkius account to connect Marqeta 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 Marqeta with Claude Desktop

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Full lifecycle card management in Claude Desktop

Stop jumping between your dashboard and the chat window. You can trigger `create_user` and `create_card` commands directly, giving you instant control over your issuing infrastructure without leaving your workspace. Everything happens in real-time. Use `get_user` or `list_cards_by_user` to pull live data into your conversation, letting you debug card states or user statuses while you discuss the logic with your agent.

Simulate live payment flows

Run `simulate_authorization` and `simulate_clearing` to see how your logic handles real-world traffic. It’s the fastest way to test your webhook handlers without waiting for external network events. This MCP Server handles the handshake for you. You get the raw JSON response back in the thread, so you can see exactly how the network reacts to your specific `create_velocity_control` rules.

Secure PIN and funding operations

Handle sensitive card updates through secure, direct calls like `update_pin` and `reveal_pin`. Your agent processes these requests in the background, keeping your workflow locked to the specific user session. Need to move money? Trigger `create_gpa_order` or `create_program_funding_source` to adjust balances on the fly. It turns the chat into a control panel for your entire financial stack.

Setup guide

Set up Marqeta 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 Marqeta 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 Marqeta 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 marqeta-mcp.

json

{
  "mcpServers": {
    "marqeta-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 Marqeta. 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.

Why Choose Vinkius

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Real-time monitoring

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Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.

Built-in savings

60%

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Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.

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One

place for every integration

Every tool your AI connects to, managed from a single screen. One account, complete control.

Common questions about Marqeta MCP in Claude Desktop

Add the server details to your claude_desktop_config.json file. Once you restart the app, the Marqeta tools will appear in the chat interface automatically.

Yes, but keep your production keys secure. The server runs locally, so ensure your environment variables are set correctly before you trigger any live card actions.

Absolutely. Use the sandbox environment to run every tool, from creating a business to provisioning Apple Pay, without spending real capital.

Your data stays between your machine and the API. This server handles PII like names, card numbers, and PIN tokens only when you explicitly invoke a tool.

The agent returns the error code directly from the API. Check the response in the chat to see if it’s a validation error or a network timeout.

Use it with your favorite AI tools

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