Carbon Voice MCP Server

A Model Context Protocol (MCP) server implementation for integrating with Carbon Voice’s API, providing AI assistants with comprehensive tools for voice messaging, conversations, and workspace management.

Carbon Voice: https://getcarbon.app

API: https://api.carbonvoice.app/docs

Features

• Message Management: Create, list, and retrieve voice messages, conversation messages, and direct messages
• User Operations: Search and retrieve user information
• Conversation Management: Access and manage conversations and their participants
• Folder Operations: Create, organize, move, and manage folders and their contents
• Workspace Administration: Get workspace information
• AI Actions: Run AI prompts and retrieve AI-generated responses
• Action Items: Create, assign, and track action items, including AI extraction from messages
• Search & Notifications: Find messages by notified or heard state, and read the inbox with its unread count
• Message Share Links: Create and look up shareable links to messages
• Attachment Support: Add link attachments to messages
• Response Narrowing: An optional response_fields projection on most read tools, to keep unwanted payload out of the agent’s context

Security & Compliance

This server fully complies with MCP Security Best Practices:

• OAuth 2.1 Authentication: Secure authorization flow with proper token handling
• HTTPS Enforcement: All remote endpoints served over HTTPS
• Session Security: Cryptographically secure session management
• Input Validation: Comprehensive validation of all user inputs
• Rate Limiting: Built-in protection against abuse

For security concerns, please contact: [email protected]

Prerequisites

For Stdio Transport (Local Installation)

Required:

1. Carbon Voice API Key - Contact the Carbon Voice development team to request your API key:

   • 📧 Contact: [email protected]
   • 📧 Subject: “Request API key for MCP Server”