51% Fewer Tokens
TOON format declares the schema once and streams rows with no repeated JSON keys. Calendar events save up to 70%.
How TOON works
The token-optimized MCP server that unifies Gmail and Microsoft 365 for AI assistants.
Measured on live accounts with real data, February 2026:
| Dataset | JSON Tokens | TOON Tokens | Savings |
|---|---|---|---|
| Gmail (10 messages) | 961 | 591 | 38% |
| Outlook (10 messages) | 1,480 | 872 | 41% |
| Google Calendar (11 events) | 1,462 | 441 | 70% |
| Combined | 3,903 | 1,904 | 51% |
Every tool call that returns data costs fewer tokens. Over a conversation with dozens of tool calls, the savings compound.
{
"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"
}
}
}
}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 → doneYou: "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"| VibeMCP | gmail-mcp + ms-365-mcp | |
|---|---|---|
| Servers to install | 1 | 2 |
| Token format | TOON (51% savings) | JSON |
| Multi-account | Built-in | Not supported |
| Unified inbox / calendar | Yes | No |
| Cross-account search | Yes | No |
VibeTensor Private Limited - Building token-efficient AI infrastructure.
PolyForm Noncommercial License - Free for personal use, research, education, and hobby projects.