How to Use the Mailosaur MCP in Cursor

Q: How do I connect Mailosaur to Cursor?

Create a .cursor/mcp.json file in your project root. Define the server settings there, and the tools will become available in Agent mode.

Q: Can Cursor use Mailosaur to test email triggers?

Yes. The agent can trigger an action and then call searchservermessages to confirm the email arrived. It makes end-to-end testing trivial.

Inject real email data into your code with Cursor. Stop mocking your verification flows.

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Connect Mailosaur MCP to Cursor

Create your Vinkius account to connect Mailosaur to Cursor 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 Mailosaur with Cursor

Ask AI about this MCP

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Claude

Perplexity

Automate testing in Cursor

Use `create_virtual_server` to generate test inboxes that mirror your production setup. The AI can now reference live IDs in your test scripts. `get_server_details` provides the metadata needed to configure your environment variables. It ensures your code points to the right test inbox every time.

Filter messages with precision

Use `search_server_messages` to find the exact email that triggered your logic. The AI can parse the response to verify your backend behavior. `list_server_messages` gives you a quick snapshot of the inbox. It helps the agent identify which message to process next.

Manage your test lifecycle

Call `delete_specific_message` inside your test teardown function. It prevents your test inbox from hitting storage limits during heavy runs. `clear_server_inbox` provides a hard reset for your test environment. Run this before every build to ensure a clean state.

Setup guide

Set up Mailosaur MCP in Cursor

Prerequisites

Cursor installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP Settings

Go to Cursor Settings → MCP or open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and search for "MCP: Add Server".
2

Add the Mailosaur MCP

Cursor will create or open .cursor/mcp.json in your project root. Paste the JSON snippet on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Enable Agent mode

Open Composer (Cmd+I / Ctrl+I) and switch to Agent mode using the dropdown at the top. MCP tools are only available in Agent mode.
4

Verify the connection

Ask Cursor something like "List my recent Mailosaur transactions." If the MCP tools are loaded correctly, Cursor will call the Mailosaur tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/mcp.json

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

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Mailosaur. 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 Mailosaur MCP in Cursor

Create a `.cursor/mcp.json` file in your project root. Define the server settings there, and the tools will become available in Agent mode.

Yes. The agent can trigger an action and then call `search_server_messages` to confirm the email arrived. It makes end-to-end testing trivial.

It does. Once configured, the agent can call these tools autonomously to verify features without you writing manual test assertions.

Store it as an environment variable in your config file. Cursor keeps it restricted to the project or global scope you define.

The server only fetches content you explicitly request. Your email data remains encrypted in transit and is never stored on the local filesystem.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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