How to Use the MailSlurp MCP in Vercel AI SDK

Test your email workflows in real-time with the MailSlurp MCP Server and your Vercel AI SDK frontends.

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Works with every AI agent you already use

…and any MCP-compatible client

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Connect MailSlurp MCP to Vercel AI SDK

Create your Vinkius account to connect MailSlurp 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 MailSlurp with Vercel AI SDK

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Stream email data directly to your UI

Your AI client can trigger `create_random_inbox` and pipe the results straight into your React components. This avoids the lag of standard polling and gives your users immediate feedback. Since this MCP Server works with edge functions, you get lightning-fast email generation. Your frontend displays fresh inbox addresses the second the agent finishes its task.

Automate verification in your Vercel AI SDK app

Stop guessing if your sign-up flow works. Use `wait_for_latest_email` to capture confirmation codes and show them to the user instantly. Your code handles the entire lifecycle. Once the test clears, `delete_specific_inbox` cleans up the state so you don't leave junk data in your environment.

Inspect email content with MailSlurp tools

Get the full body of any message using `get_email_details`. It pulls the text or HTML directly into your application context for the agent to parse. This gives your agent total visibility. It can read, verify, and act on incoming emails without you ever switching windows or checking a manual dashboard.

Setup guide

Set up MailSlurp 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 MailSlurp 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 MailSlurp 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 MailSlurp. 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 MailSlurp MCP in Vercel AI SDK

Install the MCP client packages and point your configuration to the server URL. You then pass the tool definitions directly into your generateText calls to start interacting.

Yes, you can generate a new email for every test run using this MCP Server. It handles the address creation and message retrieval needed for automated sign-up verification.

It does. Because the tools stream results back to the client, your interface updates as soon as the email hits the inbox.

The server uses a dedicated API key for every request. All data is ephemeral and tied to the specific inboxes you choose to delete.

Your email content is restricted to your account. No other user can access your inboxes, and you maintain complete control over the lifecycle of every message.

Use it with your favorite AI tools

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

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