Integrate Sidemail for automated email marketing, seamless customer communications, and workflow-driven email marketing
by sidemail·Updated Apr 13, 2026Add new capabilities to Claude beyond text generation
Example: Access external data sources, execute code, interact with tools and services
Transform Claude from chatbot to action-taking agent
Provide Claude with access to relevant context and data
Example: Load project documentation, access knowledge bases, query databases
Get more accurate, context-aware responses
Automate multi-step workflows combining AI and external tools
Example: Research → Summarize → Create document → Send notification
Complete complex tasks end-to-end without manual steps
Time estimate: 15-60 minutes depending on server complexity
Prerequisites
Mailtrap Email API
Send transactional emails easily using Mailtrap Email API. Reliable email delivery, flexible features, and secure integr
Twitch Smithery
Twitch Smithery is a twitch stream manager for chat moderation, smart timeouts, and stream controls like polls, predicti
Email (IMAP/SMTP)
Securely access and manage your emails domains with IMAP Apple and SMTP. Enjoy reliable email delivery with IMAP/SMTP su
WeCom
Enable enterprise messaging, notifications, and chatbots by integrating WeCom (WeChat Work) bot functionality seamlessly
Vapi MCP Server
Vapi MCP Server enables Vapi integration via the Model Context Protocol, providing function-calling AI API access so mod
Sidemail is among the better-indexed MCP projects we tried; the explainx.ai summary tracks the official description.
Sidemail reduced integration guesswork — categories and install configs on the listing matched the upstream repo.
Sidemail is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.
Sidemail has been reliable for tool-calling workflows; the MCP profile page is a good permalink for internal docs.
I recommend Sidemail for teams standardizing on MCP; the explainx.ai page compares cleanly with sibling servers.
We wired Sidemail into a staging workspace; the listing’s GitHub and npm pointers saved time versus hunting across READMEs.
According to our notes, Sidemail benefits from clear Model Context Protocol framing — fewer ambiguous “AI plugin” claims.
Strong directory entry: Sidemail surfaces stars and publisher context so we could sanity-check maintenance before adopting.
Useful MCP listing: Sidemail is the kind of server we cite when onboarding engineers to host + tool permissions.
We wired Sidemail into a staging workspace; the listing’s GitHub and npm pointers saved time versus hunting across READMEs.
showing 1-10 of 39
Share your MCP server with the developer community
Select a client to integrate this server.
Claude Desktop configuration
{
"mcpServers": {
"sidemail": {
"command": "npx",
"args": [
"-y",
"@sidemail/mcp"
],
"env": {
"SIDEMAIL_API_KEY": "your-key"
}
}
}
}Connects to Sidemail.io email service to send transactional emails and manage contacts through a simple API interface. Enables automated email notifications and customer communications from your MCP client.
Sidemail is an official MCP server published by sidemail that provides AI assistants with tools and capabilities via the Model Context Protocol. Integrate Sidemail for automated email marketing, seamless customer communications, and workflow-driven email marketing It is categorized under communication.
You can install Sidemail in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server runs locally on your machine via the stdio transport.
Sidemail MCP Server provides Model Context Protocol (MCP) integration for Sidemail.io, enabling programmatic access to Sidemail's transactional email, contacts, domains, and Messenger features via MCP agent mode in VS Code and other MCP clients.
Ctrl/Cmd + Shift + P).@sidemail/mcp and confirm it.Alternatively, you can install it manually by modifying the mcp.json configuration file.
Ctrl/Cmd + Shift + P).{
"servers": {
"sidemail-mcp": {
"type": "stdio",
"command": "npx",
"args": ["-y", "@sidemail/mcp"],
"env": {
"SIDEMAIL_API_KEY": "${input:sidemail-key}",
},
},
},
"inputs": [
{
"type": "promptString",
"id": "sidemail-key",
"description": "Sidemail API Key",
"password": true,
},
],
}
Edit (or create) the config file:
~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.json~/.config/Claude/claude_desktop_config.json{
"mcpServers": {
"sidemail": {
"command": "npx",
"args": ["-y", "@sidemail/mcp"],
"env": { "SIDEMAIL_API_KEY": "your-key" }
}
}
}
Create or edit ~/.cursor/mcp.json:
{
"mcpServers": {
"sidemail": {
"command": "npx",
"args": ["-y", "@sidemail/mcp"],
"env": { "SIDEMAIL_API_KEY": "your-key" }
}
}
}
npx @sidemail/mcp
Steps
Troubleshooting
✓ Do
✗ Don't
💡 Pro Tips
Architecture
Model Context Protocol standardizes how AI hosts (Claude, Cursor) communicate with external tools and data sources through server implementations.
Protocols
Compatibility
✓ Use when
Use when you need Claude to access external data, execute actions, or integrate with tools. Best for extending AI capabilities beyond conversation.
✗ Avoid when
Avoid when native integrations exist (use official APIs directly), for real-time critical systems, or when security/compliance requires zero external dependencies.