How to Use the Mailjet MCP in VS Code Copilot

Q: How do we share the Mailjet MCP Server across our team?

Commit a .vscode/mcp.json file to your Git repository. When your engineers pull the latest branch, VS Code Copilot automatically registers the tools.

Q: Can VS Code Copilot and Mailjet send real emails?

Yes. If you provide production API keys, tools like sendtemplateemail will dispatch live messages. We highly recommend using a dedicated sandbox key for local development.

Q: Why does VS Code Copilot fail to find Mailjet campaigns?

You might be querying the wrong date range or account. Use listsentcampaigns to pull the recent history and confirm the correct IDs before digging deeper.

Q: How does the extension protect our customer lists?

Executing commands like listallcontacts exposes PII to the active session. We run these requests through a stateless V8 Isolate that destroys the memory footprint immediately after the JSON response reaches your local editor.

Equip your entire engineering team with Mailjet in VS Code Copilot. Standardize email testing and list management across your repository.

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Connect Mailjet MCP to VS Code Copilot

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

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Shared MCP Server Context in VS Code

When you add this configuration to your `.vscode/mcp.json` file, every developer on the project gets immediate access to the same email infrastructure. Anyone can ask Copilot to run `list_email_templates` and get the exact same template IDs for their local testing. This removes the friction of onboarding new engineers to your notification services. They do not need to hunt down dashboard credentials. They just use `get_template_details` to understand what variables a specific transactional email requires.

Automated Audience Testing

Writing integration tests for user signups is tedious. With this MCP Server setup, Copilot can actually interact with your staging lists. It uses `create_new_contact` to generate a test user and `subscribe_to_list` to assign them to a specific group. You can then verify the state of the list by running `list_all_contacts`. If you need to map out your audience architecture, `list_contact_groups` provides the exact hierarchy your application needs to target.

Infrastructure Health Checks

Email deliverability is an engineering problem. Before deploying a massive feature that triggers thousands of messages, developers can use the MCP Server to run `list_sender_domains`. This ensures the DNS records for your sending domains are properly authenticated. If users report missing emails, you can investigate without leaving the editor. Run `get_account_analytics` to check for sudden spikes in bounce rates, or use `list_sent_campaigns` to verify that a scheduled batch actually left the servers.

Setup guide

Set up Mailjet 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 Mailjet 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 Mailjet tools listed. Try asking: "List my recent Mailjet transactions" and Copilot will invoke them automatically.

.vscode/mcp.json

{
  "mcpServers": {
    "mailjet-alternative-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 Mailjet. 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 Mailjet MCP in VS Code Copilot

Commit a `.vscode/mcp.json` file to your Git repository. When your engineers pull the latest branch, VS Code Copilot automatically registers the tools.

Yes. If you provide production API keys, tools like `send_template_email` will dispatch live messages. We highly recommend using a dedicated sandbox key for local development.

You might be querying the wrong date range or account. Use `list_sent_campaigns` to pull the recent history and confirm the correct IDs before digging deeper.

You need version 1.96 or higher. The agent mode required to execute these external tools does not exist in older builds.

Executing commands like `list_all_contacts` exposes PII to the active session. We run these requests through a stateless V8 Isolate that destroys the memory footprint immediately after the JSON response reaches your local editor.

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