Carbon Voice
MCP ServerFree** - <img height="20" width="20" src="https://carbonvoice.app/favicon.ico" align="center"/> MCP Server that connects AI Agents to [Carbon Voice](https://getcarbon.app). Create, manage, and interact with voice messages, conversations, direct messages, folders, voice memos, AI actions and more in [Car
Capabilities8 decomposed
voice-message-creation-and-management
Medium confidenceEnables AI agents to programmatically create, store, and organize voice messages within the Carbon Voice platform through MCP protocol bindings. The capability abstracts Carbon Voice's voice message API endpoints, allowing agents to compose voice content, assign metadata (tags, folders, timestamps), and persist messages in the user's voice library without direct UI interaction. Implements request/response marshaling between MCP schema and Carbon Voice's REST API contract.
Provides MCP-native bindings to Carbon Voice's voice message API, enabling agents to treat voice message creation as a first-class tool rather than requiring custom REST client code. Implements Carbon Voice's specific message schema (folders, tags, metadata) directly in the MCP tool registry.
Unlike generic REST API wrappers, this MCP server pre-integrates Carbon Voice's voice message domain model, reducing boilerplate and enabling agents to reason about voice content organization natively.
conversation-threading-and-retrieval
Medium confidenceAllows AI agents to create, retrieve, and manage threaded conversations within Carbon Voice, organizing voice messages and text exchanges into persistent conversation contexts. The MCP server maps conversation endpoints to agent-accessible tools, enabling agents to fetch conversation history, append new messages, and maintain conversation state across multiple agent invocations. Implements conversation ID tracking and context window management for multi-turn interactions.
Implements conversation threading as a first-class MCP tool, allowing agents to treat conversations as persistent objects with full history access rather than stateless message exchanges. Abstracts Carbon Voice's conversation ID and message ordering logic.
Provides conversation-aware context management built into the MCP layer, eliminating the need for agents to manually track conversation IDs or implement their own threading logic.
direct-message-routing-and-delivery
Medium confidenceEnables AI agents to send direct messages to specific users within the Carbon Voice platform, routing messages through the MCP server's DM endpoint bindings. The capability handles recipient resolution, message serialization, and delivery confirmation, allowing agents to initiate one-to-one communication without UI mediation. Implements recipient validation and delivery status tracking.
Abstracts Carbon Voice's DM routing logic into MCP tools, enabling agents to send direct messages as a primitive operation without implementing recipient resolution or delivery confirmation logic themselves.
Unlike generic messaging APIs, this MCP server handles Carbon Voice-specific user resolution and DM delivery semantics, reducing integration complexity for agent developers.
folder-and-collection-organization
Medium confidenceProvides MCP tools for agents to create, list, update, and delete folders/collections within Carbon Voice, enabling hierarchical organization of voice messages and conversations. The capability maps folder CRUD operations to MCP endpoints, allowing agents to programmatically structure user content without UI interaction. Implements folder hierarchy traversal and metadata management.
Exposes Carbon Voice's folder hierarchy as MCP tools, allowing agents to treat folder organization as a first-class capability rather than requiring direct API calls or manual folder management.
Provides hierarchical folder operations through MCP, enabling agents to reason about content organization without implementing folder traversal or hierarchy logic themselves.
voice-memo-capture-and-transcription
Medium confidenceEnables AI agents to create voice memos within Carbon Voice and optionally trigger transcription of voice content to text. The MCP server binds to Carbon Voice's voice memo endpoints, allowing agents to record or import voice data, store it as a memo, and retrieve transcribed text for downstream processing. Implements memo metadata tracking and transcription status polling.
Integrates voice memo creation and transcription as MCP tools, enabling agents to capture voice input and retrieve transcriptions without implementing audio handling or transcription polling logic themselves.
Unlike generic transcription APIs, this MCP server handles Carbon Voice's memo storage and transcription workflow, providing agents with a unified voice-to-text capability.
ai-action-execution-and-automation
Medium confidenceAllows AI agents to trigger and manage AI actions within Carbon Voice, executing predefined automation workflows or custom agent logic. The MCP server maps AI action endpoints to agent-accessible tools, enabling agents to invoke actions, pass parameters, and retrieve execution results. Implements action parameter validation and execution status tracking.
Exposes Carbon Voice's AI actions as MCP tools, enabling agents to invoke predefined automation workflows as first-class capabilities without implementing action invocation or parameter handling logic.
Provides agent-native access to Carbon Voice's AI action system through MCP, enabling multi-agent orchestration without custom integration code.
mcp-protocol-schema-binding
Medium confidenceImplements the Model Context Protocol (MCP) server specification, translating Carbon Voice API operations into MCP-compatible tool schemas and resource endpoints. The server handles MCP request/response marshaling, tool registration, and capability advertisement, enabling any MCP-compatible client (Claude, custom agents, etc.) to discover and invoke Carbon Voice operations. Implements JSON-RPC 2.0 transport and MCP resource URI handling.
Implements full MCP server specification for Carbon Voice, providing JSON-RPC 2.0 transport, tool schema registration, and resource URI handling. Enables seamless integration with MCP-compatible clients without custom protocol implementation.
Unlike REST API wrappers, this MCP server implements the MCP protocol natively, enabling agents to discover and invoke Carbon Voice capabilities through standard MCP tooling without custom integration code.
authentication-and-credential-management
Medium confidenceHandles secure authentication to Carbon Voice API, managing API credentials and session tokens for MCP client requests. The server implements credential validation, token refresh logic, and secure credential storage patterns, ensuring that MCP clients can authenticate without exposing credentials directly. Implements OAuth or API key-based authentication depending on Carbon Voice's auth scheme.
Implements secure credential handling within the MCP server, allowing MCP clients to invoke Carbon Voice operations without directly managing or exposing API credentials. Abstracts authentication complexity from client code.
Centralizes authentication in the MCP server layer, reducing credential exposure and enabling secure multi-client access to Carbon Voice without duplicating auth logic in each client.
Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.
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Best For
- ✓AI agent developers building voice-first workflows
- ✓Teams automating voice note capture and organization
- ✓Builders creating voice-enabled productivity tools on top of Carbon Voice
- ✓Multi-turn AI agents requiring conversation memory
- ✓Voice-first chat applications needing persistent threading
- ✓Teams building agent-to-user conversation workflows
- ✓Agents implementing user notification systems
- ✓Teams building agent-to-user communication workflows
Known Limitations
- ⚠Requires valid Carbon Voice API credentials and active account
- ⚠Voice generation quality depends on upstream Carbon Voice TTS engine
- ⚠No built-in batch creation — each message creation is a separate API call
- ⚠Message persistence is synchronous; no async queuing for high-volume scenarios
- ⚠Conversation history retrieval may have pagination limits on large threads
- ⚠No built-in conversation search or filtering by date range
Requirements
Input / Output
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** - <img height="20" width="20" src="https://carbonvoice.app/favicon.ico" align="center"/> MCP Server that connects AI Agents to [Carbon Voice](https://getcarbon.app). Create, manage, and interact with voice messages, conversations, direct messages, folders, voice memos, AI actions and more in [Carbon Voice](https://getcarbon.app).
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