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VibeMCPOne Server. Two Ecosystems. Half the Tokens.

The token-optimized MCP server that unifies Gmail and Microsoft 365 for AI assistants.

VibeMCP

Token Savings (Real Benchmarks)

Measured on live accounts with real data, February 2026:

DatasetJSON TokensTOON TokensSavings
Gmail (10 messages)96159138%
Outlook (10 messages)1,48087241%
Google Calendar (11 events)1,46244170%
Combined3,9031,90451%

Every tool call that returns data costs fewer tokens. Over a conversation with dozens of tool calls, the savings compound.

How It Works

Quick Start

1. Add to Claude Desktop / Claude Code

json
{
  "mcpServers": {
    "vibemcp": {
      "command": "npx",
      "args": ["-y", "@vibetensor/vibemcp"],
      "env": {
        "GOOGLE_CLIENT_ID": "your-google-client-id",
        "GOOGLE_CLIENT_SECRET": "your-google-client-secret",
        "MICROSOFT_CLIENT_ID": "your-azure-client-id",
        "MICROSOFT_TENANT_ID": "common"
      }
    }
  }
}

2. Authenticate Through Your AI

You: "Add my Google account user@gmail.com"
AI:  Opens browser → you sign in → done

You: "Add my Microsoft account user@outlook.com"
AI:  Shows a device code → you enter it at microsoft.com/devicelogin → done

3. Start Using It

You: "Show my latest emails"
You: "Search for emails from john@example.com"
You: "Send an email to jane@company.com about the meeting"
You: "What's on my calendar this week?"
You: "Create a meeting with the team on Friday at 2pm"

Full setup guide →

Why Not Just Use Separate MCP Servers?

VibeMCPgmail-mcp + ms-365-mcp
Servers to install12
Token formatTOON (51% savings)JSON
Multi-accountBuilt-inNot supported
Unified inbox / calendarYesNo
Cross-account searchYesNo

Built By

VibeTensor Private Limited - Building token-efficient AI infrastructure.

PolyForm Noncommercial License - Free for personal use, research, education, and hobby projects.

Released under the PolyForm Noncommercial License.