How to Use the MailSlurp MCP in Mastra AI

Build resilient email testing workflows in Mastra AI with the MailSlurp MCP Server.

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Connect MailSlurp MCP to Mastra AI

Create your Vinkius account to connect MailSlurp to Mastra AI 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 Mastra AI

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Perplexity

Handle email failures with Mastra AI workflows

Define complex branching logic that reacts to incoming mail. If `wait_for_email_count` times out, your agent can trigger a retry or flag the issue for manual review. This keeps your testing pipeline stable. You don't have to worry about missing an email because the agent manages the entire sequence from start to finish.

Scale testing with Mastra AI agents

Create thousands of unique addresses in seconds using `create_random_inbox`. Your Mastra AI agent can spin these up in parallel to stress-test your notification systems. It removes the bottleneck of manual inbox management. You define the logic, and the agent executes the cleanup using `delete_specific_inbox` once the process ends.

Verify complex user journeys with MailSlurp

Use `send_email_from_inbox` to simulate user actions within your agent workflows. It lets you test how your system handles replies and follow-up messages automatically. This creates a closed-loop testing environment. Your agents verify the entire conversation thread without human intervention.

Setup guide

Set up MailSlurp MCP in Mastra AI

Prerequisites

Node.js 18+ and a TypeScript project
@mastra/mcp + @mastra/core packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run npm install @mastra/mcp @mastra/core plus your preferred model provider (e.g. @ai-sdk/openai).
2

Configure the MCPClient
Create an MCPClient with your Vinkius endpoint as a URL object. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and inject tools
Call mcpClient.listTools() and spread the result into your agent's tools object. All MailSlurp tools become native Mastra tools.
4

Run with any model
Swap openai("gpt-4o") for any AI SDK-compatible provider. Call agent.generate() and the agent routes tool calls through MCP automatically.

agent.ts

import { MCPClient } from "@mastra/mcp";
import { Agent } from "@mastra/core/agent";
import { openai } from "@ai-sdk/openai";

const mcpClient = new MCPClient({
  id: "mailslurp-mcp-client",
  servers: {
    "mailslurp-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

const agent = new Agent({
  name: "MailSlurp Agent",
  model: openai("gpt-4o"),
  instructions: "You have access to MailSlurp tools.",
  tools: {
    ...(await mcpClient.listTools()),
  },
});

const result = await agent.generate(
  "List recent MailSlurp transactions"
);
console.log(result.text);

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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

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Common questions about MailSlurp MCP in Mastra AI

Import the MCP client and spread the tools into your agent configuration. This gives your agent immediate access to the full suite of MailSlurp capabilities.

Absolutely. Your agent can trigger the reset, wait for the email, and use `get_email_details` to extract the reset link for the next step in your workflow.

Yes, the agent framework handles the retries. You can set up the workflow to wait for email delivery and try again if the count does not match your expectations.

You inject your credentials via environment variables. The server processes them at runtime without storing them in your codebase.

All inbox data is isolated to your account. You decide when to purge the inboxes, ensuring that no sensitive testing content persists longer than necessary.

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