The Model Context Protocol (MCP) is the open standard that lets AI agents interact with external tools. MailMCP is the bridge between your IMAP/SMTP mailbox and any MCP-compatible AI.
AI models are powerful, but they are sandboxed. They cannot access your inbox, send messages, or manage contacts on their own. Until now, connecting email to AI required custom code, webhooks, or insecure workarounds.
Gmail API, Microsoft Graph... each provider has its own API, its own authentication, its own rate limits. Building and maintaining integrations is expensive.
Sharing app passwords, forwarding to third-party services, giving full mailbox access with no granularity. Current solutions sacrifice security for convenience.
Every AI tool reinvents the wheel. No interoperability, no portability. Switch from Claude to ChatGPT? Rebuild everything from scratch.
The Model Context Protocol (MCP) is an open standard created by Anthropic in 2024. It defines how AI models communicate with external tools and data sources. Think of it as USB-C for AI: one universal connector that works with every device.
MCP uses JSON-RPC 2.0 over HTTPS with OAuth2 authentication. An AI agent discovers available tools, calls them with structured parameters, and receives structured responses. No screen scraping, no brittle integrations.
Today, MCP is supported by Claude Desktop, ChatGPT, Cursor, VS Code, Windsurf, n8n, LibreChat and a growing ecosystem of AI clients. Any tool that speaks MCP becomes instantly available to all these clients.
// MCP protocol flow
1. Discovery
GET /mcp/.well-known/
→ Available tools list
2. Authentication
OAuth2 + PKCE
→ Secure token exchange
3. Tool call
POST /mcp/{'{clientId}'}
{
"method": "tools/call",
"params": {
"name": "list_emails",
"arguments": { "limit": 10 }
}
}
4. Response
→ Structured JSON data
MailMCP sits between your email server and your AI agent. It translates MCP tool calls into IMAP/SMTP operations in real time, with zero email storage.
From sign-up to your first AI email interaction in under 2 minutes.
Head to the registration page and create your account. It takes 30 seconds — just an email and a password. No credit card, no commitment. You immediately access the dashboard where you can manage your mailboxes.
Enter your email address and server credentials. MailMCP auto-detects settings for Gmail, Outlook, Yahoo, OVH, Infomaniak and 20+ providers. The connection is tested instantly with SSL/TLS verification, SPF/DKIM/DMARC validation, and a deliverability score.
Copy the MCP server URL from your MailMCP dashboard and paste it into your AI client — Claude Desktop, ChatGPT, Cursor, VS Code, Windsurf, or n8n. OAuth2 authentication kicks in automatically: your AI agent requests permission, you approve, and the secure session begins.
// Claude Desktop config
{
"mcpServers": {
"mailmcp": {
"url": "https://mailmcp.io/mcp/your-id"
}
}
}
Compared to traditional email integrations, MCP via MailMCP offers a fundamentally better architecture.
| MailMCP (MCP) | Gmail API | Zapier / Make | |
|---|---|---|---|
| Any email provider | ✓ | ✗ | Partial |
| AI-native protocol | ✓ | ✗ | ✗ |
| No code required | ✓ | ✗ | ✓ |
| OAuth2 + PKCE security | ✓ | ✓ | Partial |
| Zero email storage | ✓ | ✗ | ✗ |
| Works with Claude, ChatGPT, Cursor... | ✓ | ✗ | Partial |
MailMCP works out of the box with every major AI tool that supports the MCP protocol. One setup, every client.
Claude Desktop
ChatGPT
Cursor
VS Code
Windsurf
n8n
LibreChat
Copilot
Create your free account, add your mailbox, and let your AI agent handle the rest. No credit card required.
MailMCP Assistant
Powered by DeepSeek