Mailtrap Email API
OfficialEnables sending transactional emails through the Mailtrap Email API.
Create a Mailtrap Account
- Go to https://mailtrap.io/signup and create a new Mailtrap account if you do not have one.
Verify Your Domain
- Visit https://mailtrap.io/sending/domains and follow the instructions to verify your sending domain.
Obtain Your API Token
- Log in to your Mailtrap account.
- Navigate to Mailtrap API settings.
- Click to create a new API token if you don’t already have one.
- Copy the API token value.
Get Your Account ID
- Visit Mailtrap account management.
- Locate and copy your Account ID.
(Optional) Get Your Test Inbox ID (only required for sandbox/testing email functionality)
- In Mailtrap, go to your inbox dashboard.
- Select the test inbox you want to use.
- Copy the Inbox ID from the URL or the inbox details page.
Determine the “From” Email Address
- Use any verified email address from your sending domain as the value for
DEFAULT_FROM_EMAIL.
- Use any verified email address from your sending domain as the value for
Fill in the FastMCP Connection Interface
- Click the “Install Now” button for the Mailtrap MCP server in your FastMCP interface.
- In the connection setup form, fill in the following environment variables:
MAILTRAP_API_TOKEN: Paste your Mailtrap API token.DEFAULT_FROM_EMAIL: Enter your verified sender email address.MAILTRAP_ACCOUNT_ID: Paste your Mailtrap Account ID.MAILTRAP_TEST_INBOX_ID: (Optional, for sandbox email functionality) Paste your Test Inbox ID.
Save and Connect
- Save the configuration and confirm the new connection in the FastMCP interface. If the server requires a restart, follow any prompts to do so.
Note: The MAILTRAP_TEST_INBOX_ID is only required if you want to use sandbox email features; for regular sending and template management, this field can be left blank.
Quick Start
Choose Connection Type for
Authentication Required
Please sign in to use FastMCP hosted connections
Configure Environment Variables for
Please provide values for the following environment variables:
started!
The MCP server should open in . If it doesn't open automatically, please check that you have the application installed.
Copy and run this command in your terminal:
Make sure Gemini CLI is installed:
Visit Gemini CLI documentation for installation instructions.
Make sure Claude Code is installed:
Visit Claude Code documentation for installation instructions.
Installation Steps:
Configuration
Installation Failed
More for Communication
View All →
Slack
Experience the most powerful MCP server for Slack workspaces with advanced message and channel support. This feature-rich server allows fetching messages from channels, threads, DMs, and group DMs with embedded user info and smart history pagination by date or count. It supports enterprise workspaces, caching for faster access, and flexible transports like Stdio and SSE with proxy settings. Designed for stealth operation or secure access via OAuth, it integrates channel and thread lookups by name or ID to give rich, contextual Slack workspace data efficiently and reliably. Perfect for developers needing robust Slack data handling.
