How to Use the Klarna MCP in Claude

Q: How do I start a new checkout session using Klarna on Claude Desktop?

Ask Claude Desktop to run createpaymentsession with your customer's cart items, prices, and tax rates. The model formats the payload and returns the active session token.

Q: What tools do I use to inspect existing orders?

Use getorderdetails to pull the complete transaction history, line items, and current capture status. This tool provides raw API responses directly inside your chat.

Drive your Klarna order lifecycles and manage customer refunds directly from your Claude Desktop chat interface.

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Connect Klarna MCP to Claude Desktop

Create your Vinkius account to connect Klarna 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 Klarna with Claude Desktop

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Spin up checkout sessions in Claude Desktop

The `create_payment_session` tool initializes a new checkout flow with specific order lines, tax rates, and currencies right inside your Claude Desktop chat window. Claude Desktop parses your raw customer cart data, structures the payload, and hands back a Klarna client token you can instantly drop into your frontend code. You don't need to manually construct complex nested JSON payloads to test different Klarna cart configurations using this MCP Server. Ask Claude Desktop to run `get_payment_session` to inspect active session states or verify tax calculations during your local testing runs.

Execute post-purchase tasks via this MCP Server

The `capture_klarna_order` tool triggers immediate payment capture once your Claude Desktop agent confirms shipment. Claude Desktop reads your shipping logs, extracts the tracking numbers, and updates the Klarna customer record in one step. If a customer changes their mind before shipment, your Claude Desktop agent calls `cancel_authorized_order` to release the hold on their funds. You manage the entire Klarna post-purchase state without opening a separate browser tab or writing custom script files in Claude Desktop.

Process returns and modify shipping addresses

The `refund_klarna_order` tool handles customer returns by sending partial or full line-item adjustments back to the gateway from your Claude Desktop chat. Claude Desktop processes the return request from your support chat log, matches the items, and executes the Klarna refund. When customers input typos in their delivery addresses, you use `update_order_shipping` to correct the Klarna merchant references. You verify the final state immediately in Claude Desktop by calling `get_order_details` to ensure the warehouse packs the right box.

Setup guide

Set up Klarna 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 Klarna 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 Klarna 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 klarna-mcp.

json

{
  "mcpServers": {
    "klarna-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 Klarna. 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 Klarna MCP in Claude Desktop

Ask Claude Desktop to run `create_payment_session` with your customer's cart items, prices, and tax rates. The model formats the payload and returns the active session token.

Yes, you can release authorized funds by asking the model to trigger `cancel_authorized_order`. Claude Desktop executes the API call and confirms the cancellation status.

You paste the shipping tracking number into your chat and tell Claude Desktop to run `update_order_shipping`. The server updates the order record on the gateway.

Use `get_order_details` to pull the complete transaction history, line items, and current capture status. This tool provides raw API responses directly inside your chat.

This MCP Server handles sensitive order amounts, customer shipping addresses, and refund records through Vinkius's isolated sandbox. Your raw credentials and customer data aren't ever stored or exposed to external networks.

Use it with your favorite AI tools

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