{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"awesome-carbon-voice","slug":"carbon-voice","name":"Carbon Voice","type":"mcp","url":"https://github.com/PhononX/cv-mcp-server","page_url":"https://unfragile.ai/carbon-voice","categories":["mcp-servers"],"tags":[],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"awesome-carbon-voice__cap_0","uri":"capability://tool.use.integration.voice.message.creation.and.management","name":"voice-message-creation-and-management","description":"Enables 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.","intents":["I want my AI agent to generate and save voice messages on behalf of users without manual recording","I need to programmatically organize voice content into folders and apply tags for retrieval","I want to create voice memos from agent outputs and store them in a centralized voice library"],"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"],"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"],"requires":["Carbon Voice account with API access enabled","MCP client compatible with Carbon Voice MCP server","Valid authentication token for Carbon Voice API","Network connectivity to Carbon Voice backend"],"input_types":["text (message content)","string (folder name, tags, metadata)","structured JSON (message metadata object)"],"output_types":["structured JSON (message object with ID, timestamp, folder reference)","confirmation response with message URI"],"categories":["tool-use-integration","voice-automation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-carbon-voice__cap_1","uri":"capability://tool.use.integration.conversation.threading.and.retrieval","name":"conversation-threading-and-retrieval","description":"Allows 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.","intents":["I want my agent to maintain a persistent conversation thread with users across multiple sessions","I need to retrieve full conversation history including voice and text messages for context","I want to programmatically create new conversations and add messages to existing threads"],"best_for":["Multi-turn AI agents requiring conversation memory","Voice-first chat applications needing persistent threading","Teams building agent-to-user conversation workflows"],"limitations":["Conversation history retrieval may have pagination limits on large threads","No built-in conversation search or filtering by date range","Conversation state is stored server-side; no local caching mechanism","Context window for conversation retrieval is bounded by Carbon Voice API limits"],"requires":["Carbon Voice account with conversation API enabled","MCP client with tool-calling support","Valid conversation ID or ability to create new conversations","Authentication token for Carbon Voice API"],"input_types":["string (conversation ID)","text (message content to append)","structured JSON (conversation metadata)"],"output_types":["structured JSON (conversation object with message history)","array of message objects with timestamps and metadata"],"categories":["tool-use-integration","memory-knowledge"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-carbon-voice__cap_2","uri":"capability://tool.use.integration.direct.message.routing.and.delivery","name":"direct-message-routing-and-delivery","description":"Enables 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.","intents":["I want my agent to send direct messages to specific users programmatically","I need to confirm message delivery and track DM status","I want to build agent-to-user notification workflows via direct messaging"],"best_for":["Agents implementing user notification systems","Teams building agent-to-user communication workflows","Builders creating voice-enabled messaging integrations"],"limitations":["Recipient must be a valid Carbon Voice user; no external email/SMS routing","No built-in message scheduling or delayed delivery","DM delivery is synchronous; no async queue for high-volume scenarios","No read receipts or delivery confirmation beyond HTTP response status"],"requires":["Carbon Voice account with DM API enabled","Valid recipient user ID or username in Carbon Voice","MCP client with tool-calling support","Authentication token for Carbon Voice API"],"input_types":["string (recipient user ID or username)","text (message content)","optional structured JSON (message metadata)"],"output_types":["structured JSON (delivery confirmation with message ID and timestamp)","status response indicating success or failure"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-carbon-voice__cap_3","uri":"capability://tool.use.integration.folder.and.collection.organization","name":"folder-and-collection-organization","description":"Provides 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.","intents":["I want my agent to automatically organize voice messages into folders based on content or metadata","I need to create and manage folder hierarchies programmatically","I want to retrieve folder contents and organize agent-generated voice content"],"best_for":["Agents implementing content organization workflows","Teams automating voice library management","Builders creating voice content curation tools"],"limitations":["Folder hierarchy depth may be limited by Carbon Voice schema","No bulk folder operations; each folder operation is a separate API call","Folder deletion may have constraints (e.g., non-empty folder restrictions)","No folder-level access control or sharing permissions via MCP"],"requires":["Carbon Voice account with folder management API enabled","MCP client with tool-calling support","Authentication token for Carbon Voice API"],"input_types":["string (folder name)","string (parent folder ID for hierarchy)","optional structured JSON (folder metadata)"],"output_types":["structured JSON (folder object with ID, name, path)","array of folder objects for list operations"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-carbon-voice__cap_4","uri":"capability://tool.use.integration.voice.memo.capture.and.transcription","name":"voice-memo-capture-and-transcription","description":"Enables 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.","intents":["I want my agent to capture voice input and store it as a memo in Carbon Voice","I need to transcribe voice memos to text for agent processing or analysis","I want to create voice memos from agent outputs and retrieve their transcriptions"],"best_for":["Agents implementing voice-to-text workflows","Teams building voice note capture and transcription systems","Builders creating voice-enabled content processing pipelines"],"limitations":["Transcription quality depends on upstream Carbon Voice transcription engine","Transcription is asynchronous; agents must poll for completion status","Voice memo format support depends on Carbon Voice's codec support","No built-in speaker diarization or multi-speaker transcription"],"requires":["Carbon Voice account with voice memo and transcription APIs enabled","MCP client with tool-calling and polling support","Audio input source or ability to import voice data","Authentication token for Carbon Voice API"],"input_types":["audio file (WAV, MP3, or Carbon Voice-supported formats)","string (memo title/metadata)"],"output_types":["structured JSON (memo object with ID, audio URI, transcription status)","text (transcribed content once transcription completes)"],"categories":["tool-use-integration","data-processing-analysis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-carbon-voice__cap_5","uri":"capability://tool.use.integration.ai.action.execution.and.automation","name":"ai-action-execution-and-automation","description":"Allows 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.","intents":["I want my agent to trigger predefined AI actions in Carbon Voice","I need to pass parameters to AI actions and retrieve their results","I want to build multi-agent workflows where one agent triggers actions in another"],"best_for":["Teams building multi-agent automation workflows","Agents implementing complex business logic via Carbon Voice actions","Builders creating agent-orchestrated voice processing pipelines"],"limitations":["AI actions must be predefined in Carbon Voice; no dynamic action creation via MCP","Action execution is synchronous; long-running actions may timeout","No built-in action chaining or conditional execution logic","Action parameter schema must match Carbon Voice's action definition"],"requires":["Carbon Voice account with AI actions feature enabled","Predefined AI actions configured in Carbon Voice","MCP client with tool-calling support","Authentication token for Carbon Voice API"],"input_types":["string (action ID or name)","structured JSON (action parameters matching action schema)"],"output_types":["structured JSON (action execution result)","status response with execution metadata"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-carbon-voice__cap_6","uri":"capability://tool.use.integration.mcp.protocol.schema.binding","name":"mcp-protocol-schema-binding","description":"Implements 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.","intents":["I want to use Carbon Voice capabilities with Claude or other MCP-compatible AI clients","I need to expose Carbon Voice as a set of discoverable tools to my AI agent","I want to integrate Carbon Voice into my MCP-based agent infrastructure"],"best_for":["AI agent developers using MCP-compatible clients (Claude, etc.)","Teams building MCP-based agent infrastructure","Builders integrating Carbon Voice into MCP ecosystems"],"limitations":["Requires MCP client support; not compatible with non-MCP AI platforms","Tool discovery is static; no dynamic tool generation based on user configuration","MCP transport is JSON-RPC 2.0 over stdio or HTTP; no WebSocket support","Tool schema must be manually maintained in sync with Carbon Voice API changes"],"requires":["MCP-compatible client (Claude, custom MCP client, etc.)","Node.js runtime for MCP server execution","Carbon Voice API credentials","Network connectivity between MCP client and server"],"input_types":["MCP tool call requests (JSON-RPC 2.0 format)","MCP resource URI requests"],"output_types":["MCP tool response (JSON-RPC 2.0 format)","MCP resource content (text, JSON, or structured data)"],"categories":["tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-carbon-voice__cap_7","uri":"capability://tool.use.integration.authentication.and.credential.management","name":"authentication-and-credential-management","description":"Handles 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.","intents":["I want my MCP client to authenticate securely to Carbon Voice without managing credentials","I need to handle token refresh and session management transparently","I want to support multiple Carbon Voice accounts or users through the MCP server"],"best_for":["Teams deploying MCP servers in shared or multi-user environments","Builders implementing secure agent-to-service authentication","Developers requiring credential isolation between MCP clients"],"limitations":["Credential storage depends on deployment environment (env vars, secrets manager, etc.)","No built-in multi-tenancy; each MCP server instance handles single Carbon Voice account","Token refresh is synchronous; expired tokens may cause request failures","No audit logging of authentication events or credential access"],"requires":["Carbon Voice API credentials (API key or OAuth tokens)","Secure credential storage mechanism (environment variables, secrets manager, etc.)","MCP server runtime with access to credential storage"],"input_types":["API key or OAuth token (provided at server startup)","optional user context for multi-user scenarios"],"output_types":["authenticated HTTP headers for Carbon Voice API requests","token refresh responses"],"categories":["tool-use-integration","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":32,"verified":false,"data_access_risk":"high","permissions":["Carbon Voice account with API access enabled","MCP client compatible with Carbon Voice MCP server","Valid authentication token for Carbon Voice API","Network connectivity to Carbon Voice backend","Carbon Voice account with conversation API enabled","MCP client with tool-calling support","Valid conversation ID or ability to create new conversations","Authentication token for Carbon Voice API","Carbon Voice account with DM API enabled","Valid recipient user ID or username in Carbon Voice"],"failure_modes":["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","Conversation state is stored server-side; no local caching mechanism","Context window for conversation retrieval is bounded by Carbon Voice API limits","Recipient must be a valid Carbon Voice user; no external email/SMS routing","No built-in message scheduling or delayed delivery","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.05,"quality":0.51,"ecosystem":0.39999999999999997,"match_graph":0.25,"freshness":0.52,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.15,"match_graph":0.23,"freshness":0.12}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-06-17T09:51:02.371Z","last_scraped_at":"2026-05-03T14:00:15.503Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=carbon-voice","compare_url":"https://unfragile.ai/compare?artifact=carbon-voice"}},"signature":"jVAfzK3fRRrAulf0JS3RiMiwG+iq9v8LiKJJVudPjfcii+RVzIRIyuycX7YyeK67a8MKbYLUgu0eXEuE3FnVAA==","signedAt":"2026-06-21T03:48:05.055Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/carbon-voice","artifact":"https://unfragile.ai/carbon-voice","verify":"https://unfragile.ai/api/v1/verify?slug=carbon-voice","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}