How do I connect my MailSlurp account?

You just need to provide your MailSlurp API Key (x-api-key) when you connect the MCP to your client.

Can I use this to test registration flows?

Yes. Your agent can create a random inbox and then wait for the specific verification email to arrive using the wait capabilities.

Does this work with Claude or Cursor?

Yes, this MCP works with any MCP-compatible client, including Claude, Cursor, and Windsurf.

Can I send emails from these addresses?

Yes, the agent can send emails directly from any of your MailSlurp addresses.

How do I clean up my test data?

You can tell your agent to delete specific messages or entire inboxes once your testing is complete.

How do I find my Inbox ID?

Use the list_all_inboxes capability to see a comprehensive list of all your MailSlurp addresses along with their unique IDs.

What is the benefit of the 'wait-for' capabilities?

They hold the connection until an email arrives, making it easy to test asynchronous processes (like password resets) without writing complex retry loops.

Where do I find my API Key?

Log in to your MailSlurp dashboard and copy the API key from the Home or API Settings section.

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Connect MailSlurp to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Let your agent handle virtual inboxes and email testing workflows.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 8 capabilities

We ship only the actions that matter.

Capability set01 / 02

01-04

4 capabilities in this set.

Part of 8 available through MailSlurp.

01
Create random inbox
This capability generates a brand new, random email address for your agent to use.
02
List inbox emails
Your agent uses this to see all messages currently sitting in a specific inbox.
03
Send email from inbox
This capability allows your agent to send an outbound email using one of your MailSlurp addresses.
04
Wait for latest email
Your agent can long-poll this capability to wait for the very next incoming email to arrive.

Capability set02 / 02

05-08

4 capabilities in this set.

Part of 8 available through MailSlurp.

05
Delete specific inbox
This capability wipes an entire inbox and all its contents from your account.
06
Get email details
Use this to pull the full body and technical details of a specific received email.
07
List all inboxes
This capability provides a full list of every virtual inbox managed in your MailSlurp account.
08
Wait for email count
Your agent can pause until an inbox reaches a specific number of received messages.

Real work

What teams actually run

User Registration Testing

The agent creates an inbox, signs up a user, and waits for the verification email to arrive.

Transactional Alert Audits

Your agent sends triggers and then checks the virtual inbox to ensure the correct notification was sent.

Email Content Validation

The agent retrieves the HTML body of a received email to verify formatting and links.

Bulk Email Flow Testing

The agent waits for a specific number of emails to arrive before proceeding with a test suite.

Automate a task

Put MailSlurp to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

MailSlurp works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put MailSlurp to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

946ms average. Fast in production.

MailSlurp is checked daily against the live service.

Daily averagePeak 1072ms

Oct 3Today

Fastest day: 800ms
Slowest day: 1072ms
14-day trend: Stable+3%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 8 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of MailSlurp, so you can see the experience inside your AI.

It does not authenticate your account with MailSlurp. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

MailSlurp Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_vRBUT7cwmQBHCE8gG9ntobAaiC1YlLQ1uk7HJChy/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — MailSlurp capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "mailslurp-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_vRBUT7cwmQBHCE8gG9ntobAaiC1YlLQ1uk7HJChy/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up MailSlurp in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work MailSlurp owners hand off.

This MCP is built for technical teams who need to automate the verification of email-based workflows.

01
QA Engineers
They hand off the verification of user registration and transactional alerts to the agent.
02
Developers
They use the agent to inspect incoming test emails directly from their IDE.
03
Product Teams
They use the agent to monitor and audit automated communication paths.

FAQ

Questions MailSlurp owners ask.

01
How do I connect my MailSlurp account?
You just need to provide your MailSlurp API Key (x-api-key) when you connect the MCP to your client.
02
Can I use this to test registration flows?
Yes. Your agent can create a random inbox and then wait for the specific verification email to arrive using the wait capabilities.
03
Does this work with Claude or Cursor?
Yes, this MCP works with any MCP-compatible client, including Claude, Cursor, and Windsurf.
04
Can I send emails from these addresses?
Yes, the agent can send emails directly from any of your MailSlurp addresses.
05
How do I clean up my test data?
You can tell your agent to delete specific messages or entire inboxes once your testing is complete.
06
How do I find my Inbox ID?
Use the list_all_inboxes capability to see a comprehensive list of all your MailSlurp addresses along with their unique IDs.
07
What is the benefit of the 'wait-for' capabilities?
They hold the connection until an email arrives, making it easy to test asynchronous processes (like password resets) without writing complex retry loops.
08
Where do I find my API Key?
Log in to your MailSlurp dashboard and copy the API key from the Home or API Settings section.

Explore

More in Developer Tools

Connect MailSlurp to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Create random inbox

List inbox emails

Send email from inbox

Wait for latest email

05-08

Delete specific inbox

Get email details

List all inboxes

Wait for email count

What teams actually run

User Registration Testing

Transactional Alert Audits

Email Content Validation

Bulk Email Flow Testing

Building your own app? The connector is yours to use.

MailSlurp Connector

Claude Desktop

QA Engineers

Developers

Product Teams

How do I connect my MailSlurp account?

Can I use this to test registration flows?

Does this work with Claude or Cursor?

Can I send emails from these addresses?

How do I clean up my test data?

How do I find my Inbox ID?

What is the benefit of the 'wait-for' capabilities?

Where do I find my API Key?

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