Cartesia (Voice AI) MCP Server with 20 Tools for Claude, Cursor, and AI Agents
GDPR Free for SubscribersGenerate lifelike AI voices, clone speech, and transcribe audio with Cartesia's state-of-the-art Sonic models directly from your AI agent. Vinkius routes your AI agents directly to Cartesia (Voice AI) through a governed connection. 20 tools ready to use with Claude, ChatGPT, Cursor, or any AI agent — no hosting, no setup, connect in 30 seconds.
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Compatible with every major AI agent and IDE
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What is the Cartesia MCP Server?
The Cartesia MCP Server routes AI agents like Claude, ChatGPT, and Cursor directly to Cartesia via 20 tools. Generate lifelike AI voices, clone speech, and transcribe audio with Cartesia's state-of-the-art Sonic models directly from your AI agent. Powered by Vinkius — your credentials stay on your side of the connection, every request is auditable. Connect in under 2 minutes.
Built-in capabilities (20)
Tools for your AI Agents to operate Cartesia
Ask your AI agent "List all available voices in my Cartesia account." and get the answer without opening a single dashboard. With 20 tools connected to real Cartesia data, your agents reason over live information, cross-reference it with other MCP servers, and deliver insights you would spend hours assembling manually.
Works with Claude, ChatGPT, Cursor, and any MCP-compatible client. Powered by Vinkius — your credentials never touch the AI model, every request is auditable. Connect in under two minutes.
Why teams choose Vinkius
One subscription gives you the infrastructure to connect your AI agents to thousands of MCP servers — and deploy your own to the Vinkius Edge. Your credentials stay yours. Your data flows directly between your agent and the API. DLP blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade routing and governance, zero maintenance.
Build your own MCP Server with our secure development framework →The Cartesia (Voice AI) App Connector works with every AI agent you already use
…and any MCP-compatible client
Use all 20 Cartesia (Voice AI) tools with your AI agents right now
Vinkius routes your AI agents to Cartesia (Voice AI) through a governed proxy. Beyond a simple connection, you get full visibility into every action your agents perform, with enterprise-grade security and up to 60% savings on AI costs.
Clone voice on Cartesia (Voice AI)
Clone a voice from a 5s audio clip
Create pronunciation dict on Cartesia (Voice AI)
Create a new pronunciation dictionary
Delete pronunciation dict on Cartesia (Voice AI)
Delete a pronunciation dictionary
Delete voice on Cartesia (Voice AI)
Delete a voice
Generate access token on Cartesia (Voice AI)
Generate a short-lived access token for client-side requests
Get agent on Cartesia (Voice AI)
Get details for a specific voice agent
Get usage credits on Cartesia (Voice AI)
Get credit usage statistics
Get voice on Cartesia (Voice AI)
Get details for a specific voice
Infill bytes on Cartesia (Voice AI)
Generate audio to smoothly connect two existing segments
List agent calls on Cartesia (Voice AI)
List calls and transcripts for a specific agent
List agents on Cartesia (Voice AI)
List all voice agents
List pronunciation dicts on Cartesia (Voice AI)
List pronunciation dictionaries
List voices on Cartesia (Voice AI)
List available voices
Localize voice on Cartesia (Voice AI)
Adapt a voice to a new language/dialect
Stt batch on Cartesia (Voice AI)
Transcribe audio file to text (Batch STT)
Tts bytes on Cartesia (Voice AI)
Generate text-to-speech audio bytes
Tts sse on Cartesia (Voice AI)
Generate text-to-speech via Server-Sent Events
Update pronunciation dict on Cartesia (Voice AI)
Update a pronunciation dictionary
Update voice on Cartesia (Voice AI)
Update voice metadata
Voice changer bytes on Cartesia (Voice AI)
Change voice of an audio clip while preserving intonation
What the Cartesia (Voice AI) MCP Server unlocks
Connect Cartesia to your AI agent to unlock high-performance voice synthesis and speech recognition. Cartesia's Sonic models provide industry-leading latency and quality for real-time applications.
What you can do
- Text-to-Speech (TTS) — Generate high-fidelity audio bytes or stream via SSE using models like Sonic 3.5 and Sonic 3.
- Speech-to-Text (STT) — Transcribe audio files into text using the Ink Whisper model with multi-language support.
- Voice Cloning — Create custom voice models from as little as 5 seconds of audio input.
- Voice Management — List, retrieve, and update voices, or use the Voice Changer to transform existing audio.
- Pronunciation Control — Manage custom pronunciation dictionaries for specialized terminology or accents.
- Agent Orchestration — List and manage AI agents and monitor call logs and usage credits.
How it works
1. Subscribe to this server
2. Enter your Cartesia API Key
3. Start generating audio or transcribing speech from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Developers — integrate real-time voice synthesis into applications without managing complex infrastructure.
- Content Creators — automate voiceovers and audio localization using high-quality cloned voices.
- Product Teams — build conversational AI agents that sound human and respond with sub-second latency.
Frequently asked questions about the Cartesia (Voice AI) MCP Server
Can I generate audio in different formats like MP3 or WAV?
Yes. Using the tts_bytes tool, you can specify the output_format_container as 'mp3', 'wav', or 'raw', and configure the sample rate and encoding to match your needs.
How do I transcribe an existing audio file to text?
Use the stt_batch tool. Provide the base64 encoded audio file, specify the model (e.g., 'ink-whisper'), and the language code to receive a full transcription.
Is it possible to clone a voice using this integration?
Absolutely. The clone_voice tool allows you to create a new voice model by uploading a short (approx. 5s) base64 encoded audio clip.
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We built the connector to Cartesia (Voice AI). Now put your agents to work. Fully governed.
Vinkius is the AI Gateway with managed hosting. Stop building connectors. Every connection runs inside eight layers of security.
Hosted, sandboxed, and live on AWS. You don't provision anything. You don't maintain anything. You connect.
Every tool call, every token, every response. Logged and auditable. Data flows direct from Cartesia (Voice AI) to your agent. Nothing is stored on our side. Ever.
Eight governance layers on every request. Sensitive data redacted before it reaches the model. Kill switch if anything goes sideways. Always on.