How to Use the Klarna MCP in Vercel AI SDK

Stream Klarna payment data directly into your Vercel AI SDK interface for real-time order management.

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Connect Klarna MCP to Vercel AI SDK

Create your Vinkius account to connect Klarna to Vercel AI SDK 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 Vercel AI SDK

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Live payment session tracking

Your AI client pulls active session data instantly using `get_payment_session`. You stop guessing if a checkout is valid because the state updates as soon as the customer interacts with your frontend. This makes your UI reactive. By feeding `create_payment_session` results into your streaming response, users see their order totals and line items populate the moment the session initializes.

Instant order lifecycle control

Your agent manages the full flow from `create_klarna_order` to final settlement. It handles the heavy lifting of API calls so you can focus on building the actual purchase experience. When a customer completes their transaction, the tool executes `capture_klarna_order` automatically. You get immediate feedback on success or failure without writing custom polling logic.

Dynamic order adjustments

Adjust shipping details on the fly using `update_order_shipping` before the goods leave the warehouse. This ensures that your records stay accurate even when customers make last-minute changes. If something goes wrong, use `refund_klarna_order` or `cancel_authorized_order` to revert the state. Your AI client maintains control over the entire transaction lifecycle with these specific operations.

Setup guide

Set up Klarna MCP in Vercel AI SDK

Prerequisites

Node.js 18+ and a TypeScript project
ai + @modelcontextprotocol/sdk packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies

Run npm install ai @modelcontextprotocol/sdk plus your preferred model provider (e.g. @ai-sdk/openai).
2

Create the Streamable HTTP transport

Use StreamableHTTPClientTransport with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and use tools

Call mcpClient.tools() to auto-discover all Klarna tools. Pass them directly to generateText() or streamText() — no manual schema definitions needed.
4

Works with any model provider

Swap openai("gpt-4o") for any AI SDK provider — Anthropic, Google, Mistral. The MCP tools work identically across all supported models.

index.ts

import { experimental_createMCPClient as createMCPClient } from "ai";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";

const transport = new StreamableHTTPClientTransport(
  new URL("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
);

const mcpClient = await createMCPClient({ transport });
const tools = await mcpClient.tools();

const { text } = await generateText({
  model: openai("gpt-4o"),
  tools,
  prompt: "List recent Klarna transactions",
});

console.log(text);
await mcpClient.close();

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.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

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Real-time monitoring

Live

visibility into every interaction

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

Built-in savings

60%

lower AI costs

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

Single dashboard

One

place for every integration

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

Common questions about Klarna MCP in Vercel AI SDK

Install the MCP client package and point it to your Vinkius endpoint. Register the tools in your agent setup and pass them to your streamText function.

Yes. Since the tools return data directly to your stream, you can update your React components as soon as the server responds.

Absolutely. You can invoke the refund tool directly from your dashboard to handle customer requests instantly.

You provide your API keys to the server configuration. The connection remains secure through the Vinkius managed sandbox environment.

The server only touches order and session metadata. No sensitive credit card details pass through your agent, and all traffic stays encrypted.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.