How do I connect my Mailtrap account?

You subscribe to the MCP on Vinkius and enter your Mailtrap API Key and Account ID. Once connected, it is ready to use in your AI client.

Can I send real emails through this MCP?

Yes, the MCP includes a capability to send production emails, as well as capabilities to send test emails to your sandboxes.

Which AI clients can I use with this?

You can use this MCP with any compatible client, including Claude, Cursor, and Windsurf.

Can the AI check if my emails will go to spam?

Yes, you can ask your agent to analyze the spam score and check specific SpamAssassin results for captured messages.

Vinkius hosts the MCP and manages your credentials securely, so you don't have to manage local environment variables for the connection.

Can I both test and send emails with Mailtrap?

Yes. Mailtrap supports both Email Testing (capturing emails in staging) and Email Sending (transactional delivery in production).

Does Mailtrap require an Account ID?

Yes. You need both an API Key and Account ID to authenticate via Bearer token against mailtrap.io/api.

Can I analyze spam scores and HTML rendering?

Yes. Mailtrap analyzes captured emails for spam score (SpamAssassin), blacklists, HTML errors, and client support.

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Connect Mailtrap 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. Debug email rendering and delivery directly from your AI client.

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 · 12 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 12 available through Mailtrap.

01
Delete sandbox message
This capability removes a specific captured email from your sandbox.
02
Get domain status
Use this to pull specific details about your sending domains.
03
List accessible accounts
This capability retrieves a list of all user accounts you can access.
04
List verified domains
Get a list of all your verified sending domains.

Capability set02 / 03

05-08

4 capabilities in this set.

Part of 12 available through Mailtrap.

05
List mailtrap projects
This capability lists all the Mailtrap projects associated with your account.
06
Send production email
Use this to send an email through your production Mailtrap environment.
07
Clear sandbox inbox
This capability wipes all messages currently sitting in a sandbox inbox.
08
Get message details
Get the metadata for a specific captured message.

Capability set03 / 03

09-12

4 capabilities in this set.

Part of 12 available through Mailtrap.

09
Get message HTML
This capability retrieves the raw HTML body of an email message.
10
List sandboxes
Use this to see all your available virtual testing inboxes.
11
List sandbox messages
This capability pulls a list of messages found in a specific inbox.
12
Send test email
Send a test email directly to one of your sandboxes.

Real work

What teams actually run

Staging Flow Validation

Trigger a test email to a sandbox and have your agent check if the HTML looks correct.

Spam Prevention

Ask your agent to analyze the spam score of a new template before you deploy it.

Delivery Auditing

Check your weekly bounce and open rates to ensure production emails are reaching users.

Inbox Cleanup

Use a single command to wipe all messages from a testing inbox after a test run.

Automate a task

Put Mailtrap 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

Mailtrap 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 Mailtrap 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

907ms average. Fast in production.

Mailtrap is checked daily against the live service.

Daily averagePeak 1361ms

Oct 3Today

Fastest day: 832ms
Slowest day: 1361ms
14-day trend: Improving-16%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 12 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 Mailtrap, so you can see the experience inside your AI.

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

Mailtrap Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_Ad5Juop0aQx2ay54WiDoJvVK7YtPyDjMRVyTPy0Y/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 — Mailtrap capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "mailtrap-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_Ad5Juop0aQx2ay54WiDoJvVK7YtPyDjMRVyTPy0Y/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 Mailtrap in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Mailtrap owners hand off.

This MCP is built for technical teams managing email-heavy applications.

01
Developers
They use the agent to test email flows in staging environments.
02
QA Engineers
They hand off tasks to the agent to verify email rendering and spam scores.
03
Operations
They use the agent to monitor production transactional delivery rates.

FAQ

Questions Mailtrap owners ask.

01
How do I connect my Mailtrap account?
You subscribe to the MCP on Vinkius and enter your Mailtrap API Key and Account ID. Once connected, it is ready to use in your AI client.
02
Can I send real emails through this MCP?
Yes, the MCP includes a capability to send production emails, as well as capabilities to send test emails to your sandboxes.
03
Which AI clients can I use with this?
You can use this MCP with any compatible client, including Claude, Cursor, and Windsurf.
04
Can the AI check if my emails will go to spam?
Yes, you can ask your agent to analyze the spam score and check specific SpamAssassin results for captured messages.
05
Is my data secure?
Vinkius hosts the MCP and manages your credentials securely, so you don't have to manage local environment variables for the connection.
06
Can I both test and send emails with Mailtrap?
Yes. Mailtrap supports both Email Testing (capturing emails in staging) and Email Sending (transactional delivery in production).
07
Does Mailtrap require an Account ID?
Yes. You need both an API Key and Account ID to authenticate via Bearer token against mailtrap.io/api.
08
Can I analyze spam scores and HTML rendering?
Yes. Mailtrap analyzes captured emails for spam score (SpamAssassin), blacklists, HTML errors, and client support.

Explore

More in Developer Tools

Connect Mailtrap 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

Delete sandbox message

Get domain status

List accessible accounts

List verified domains

05-08

List mailtrap projects

Send production email

Clear sandbox inbox

Get message details

09-12

Get message HTML

List sandboxes

List sandbox messages

Send test email

What teams actually run

Staging Flow Validation

Spam Prevention

Delivery Auditing

Inbox Cleanup

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

Mailtrap Connector

Claude Desktop

Developers

QA Engineers

Operations

How do I connect my Mailtrap account?

Can I send real emails through this MCP?

Which AI clients can I use with this?

Can the AI check if my emails will go to spam?

Is my data secure?

Can I both test and send emails with Mailtrap?

Does Mailtrap require an Account ID?

Can I analyze spam scores and HTML rendering?

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