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Sidemail

Official

Integrates with Sidemail.io email service to send emails through a simple API interface for automate...

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Updated Nov 22, 2025
Not audited
Integrates with Sidemail.io email service to send emails through a simple API interface for automated notifications, customer communications, and workflow-triggered messaging.
  1. Log in to your Sidemail Account

  2. Navigate to API Keys

    • In your Sidemail dashboard, look for a section called “API” or “API Keys.” This is usually found in the sidebar or under account settings.
  3. Create or Copy an API Key

    • If you do not have an API key yet, click the button to create a new API key.
    • If you already have an API key, copy it. The key will be a string of characters starting with live_ or test_.
  4. Fill in the Value in the FastMCP Connection Interface

    • Return to the FastMCP connection interface.
    • When prompted to add environment variables, use your Sidemail API Key for the value of SIDEMAIL_API_KEY.
    • Use the “Install Now” button if available, and paste the API key into the appropriate input field.
  5. Save or Confirm

    • Make sure to save or confirm the entry so the FastMCP server can use your Sidemail API Key for authentication.

You are now ready! Your Sidemail MCP integration should work with the API key you provided.

How to Install Sidemail

Install Sidemail MCP server with one click through FastMCP. Choose your preferred AI development tool below:

Claude Desktop

Click "Claude Desktop" in Quick Start

Cursor IDE

Click "Cursor IDE" in Quick Start

VS Code

Click "VS Code" in Quick Start

Sidemail is an officially maintained MCP server, verified by the FastMCP team.

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