How to Use the Mailtrap MCP in VS Code Copilot

Q: How do I add Mailtrap to my VS Code project?

Add the server configuration to your .vscode/mcp.json file. Once committed to your repo, your teammates will have immediate access to the tools in their editor.

Standardize team email testing by deploying the Mailtrap MCP Server across your VS Code environment.

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Connect Mailtrap MCP to VS Code Copilot

Create your Vinkius account to connect Mailtrap to VS Code Copilot 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 Mailtrap with VS Code Copilot

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Sync team email testing in VS Code

Commit your `mcp.json` to the repository so every team member uses the same tools. This ensures everyone has access to `list_sandboxes` and `list_verified_domains` without manual setup. It removes the configuration drift that plagues teams. Your entire engineering group works against the same sandbox definitions.

Verify domain settings via VS Code

Check if your sending domains are ready using `list_verified_domains`. It gives your team visibility into the infrastructure status without needing access to the main account dashboard. When a build fails, you can verify the domain setup in seconds. It saves time during those critical deployment windows.

Manage production mail from VS Code

Use `send_production_email` for final verification steps within your CI/CD agent workflows. It allows for controlled, automated dispatches that you can track through the API. Your team can audit these sends using the same toolset. It keeps your production logic transparent and easy to debug.

Setup guide

Set up Mailtrap MCP in VS Code Copilot

Prerequisites

VS Code 1.99 or later with GitHub Copilot extension
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and run "MCP: Add Server". Select HTTP (Streamable) as the server type. VS Code will create .vscode/mcp.json in your workspace.
2

Add the Mailtrap MCP

Paste the JSON snippet shown on the right into your .vscode/mcp.json. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Switch to Agent mode

Open Copilot Chat (Cmd+Shift+I / Ctrl+Shift+I) and switch to Agent mode using the dropdown. MCP tools are only available in Agent mode — they do not appear in Edit or Ask modes.
4

Verify the connection

In the Copilot Chat input, type # to list available tools. You should see the Mailtrap tools listed. Try asking: "List my recent Mailtrap transactions" and Copilot will invoke them automatically.

.vscode/mcp.json

{
  "mcpServers": {
    "mailtrap-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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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 Mailtrap. 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.

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Common questions about Mailtrap MCP in VS Code Copilot

Add the server configuration to your `.vscode/mcp.json` file. Once committed to your repo, your teammates will have immediate access to the tools in their editor.

It allows the agent to verify that your email templates are rendered correctly. You can ask the AI to check the HTML output before you push your changes to production.

Absolutely. Because the config lives in your repo, you can ensure that every developer on your team is testing against the correct Mailtrap sandbox every time.

Keep your API keys in environment variables or your user configuration. Do not commit sensitive tokens to your repository; use the standard VS Code secret management patterns instead.

The server only touches the email metadata and HTML bodies you explicitly send for testing. Your production user data remains untouched and secured behind your own backend logic.

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