VibeTensor/vibemcp

Implements the TOON (Token-Oriented Object Notation) format to encode email and calendar data as schema-declared, tab-delimited rows instead of verbose JSON, achieving 51% average token reduction across Gmail, Outlook, and Google Calendar. Exposes 51 unified tools via stdio MCP transport for account management, email operations (send, reply, search, labels, drafts), and calendar access with switchable `format` parameter for JSON compatibility. Supports OAuth 2.0 for Google and Device Code flow for Microsoft 365, with credentials passed through environment variables or CLI authentication.

Available on npm.