How to Use the Marqeta MCP in Claude Code

Q: How do I transition card states using Marqeta and Claude Code?

You execute createcardtransition through the CLI. The agent updates the card status to active, suspended, or terminated, allowing you to test how your system reacts to stolen cards during terminal-based test runs.

Q: How does the Marqeta MCP Server handle program funding in Claude Code?

The agent uses createprogramfundingsource to establish your primary funding account. It then runs creategpaorder to fund individual cardholder accounts, letting you script and test complex balance allocations directly from your shell.

Q: Can I retrieve PIN information securely through the CLI?

Yes, you can reveal PINs securely. The agent runs revealpin using a control token generated by createpincontroltoken, displaying the PIN directly in your secure terminal session for debugging.

Control your Marqeta card program directly from your terminal using Claude Code to automate provisioning, testing, and ledger checks.

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Create your Vinkius account to connect Marqeta to Claude Code 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 Code

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Direct ledger audits from your terminal

The `get_balances` tool retrieves the real-time balance of any user or corporate account via this command line MCP tool. Claude Code runs this tool and pipes the JSON balance data directly into your local terminal scripts or log files. You don't need a heavy GUI to check account states. The terminal agent fetches the ledger data instantly, allowing you to debug funding issues during active development sessions.

Scripted transaction testing with Claude Code

The `simulate_authorization` tool lets you mock card swipes from a headless terminal session. Claude Code fires this tool, captures the transaction token, and immediately pipes it to `simulate_clearing` to complete the ledger update. This headless pipeline is perfect for CI/CD testing. You can script entire payment lifecycles, run them in your deployment pipeline, and assert that your backend processes the webhooks correctly.

Rapid user provisioning via terminal MCP Server

The `create_user` tool registers new cardholders instantly without leaving your shell. Claude Code executes this command, runs `perform_kyc` to clear identity checks, and returns the user token to your terminal output. Managing sandbox users becomes a matter of running a single command. The agent handles the payload formatting and outputs clean JSON that you can grep or redirect to local environment files.

Setup guide

Set up Marqeta MCP in Claude Code

Prerequisites

Claude Code CLI installed (npm install -g @anthropic-ai/claude-code)
Active Vinkius subscription with a valid endpoint token

1

Run the add command

Open your terminal and run the command shown on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com. Use --scope user to make it available across all projects.
2

Verify the connection

Start a Claude Code session and type /mcp to list connected servers. You should see marqeta-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest Marqeta transactions." It will automatically discover and invoke the available Marqeta tools.

Terminal

claude mcp add --transport http marqeta-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

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Prerequisites

Claude Code CLI installed
Active Vinkius subscription with a valid endpoint token

1

Open the config file

Create or edit .mcp.json in your project root for project-level scope, or ~/.claude.json for user-level scope.
2

Add the Marqeta MCP

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

Restart Claude Code

Start a new Claude Code session. Type /mcp to confirm the server is connected. The tools will be automatically available in your conversation.

.mcp.json

{
  "mcpServers": {
    "marqeta-mcp": {
      "type": "url",
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

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Common questions about Marqeta MCP in Claude Code

Yes, you can manage webhooks entirely from the command line. Use the agent to run `create_webhook` to register your endpoint, and verify it instantly by calling `ping_webhook` to trigger a test payload.

You execute `create_card_transition` through the CLI. The agent updates the card status to active, suspended, or terminated, allowing you to test how your system reacts to stolen cards during terminal-based test runs.

The agent uses `create_program_funding_source` to establish your primary funding account. It then runs `create_gpa_order` to fund individual cardholder accounts, letting you script and test complex balance allocations directly from your shell.

Yes, you can reveal PINs securely. The agent runs `reveal_pin` using a control token generated by `create_pin_control_token`, displaying the PIN directly in your secure terminal session for debugging.

Sensitive cardholder details and PIN control tokens are never stored locally. This terminal MCP server runs operations like `update_pin` in an ephemeral container that destroys all session data immediately after execution.

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