{
  "slug": "cartesia",
  "name": "Cartesia MCP",
  "vendor": "Cartesia",
  "official": true,
  "category": "voice-speech",
  "featured": false,
  "tagline": "Official Cartesia (Sonic) server: low-latency TTS, voice cloning, infill, localization.",
  "description": "Cartesia's official MCP server exposes its Sonic voice stack: TTS, speech-to-text, voice cloning, voice changing, and notably audio infill (generate speech between two existing clips) and voice localization into other languages. Strong for ADR-style dialogue patching and localizing a character's voice across language versions.",
  "capabilities": [
    "tts",
    "stt",
    "voice-cloning",
    "voice-changing",
    "infill",
    "localization"
  ],
  "tools_sample": [
    "text_to_speech",
    "speech_to_text",
    "list_voices",
    "clone_voice",
    "voice_change",
    "localize_voice",
    "infill",
    "get_credit_usage"
  ],
  "install": {
    "claude_code": "claude mcp add cartesia -e CARTESIA_API_KEY=YOUR_KEY -- uvx cartesia-mcp",
    "remote_url": null,
    "stdio_command": "uvx cartesia-mcp"
  },
  "auth": {
    "type": "api_key",
    "env_var": "CARTESIA_API_KEY",
    "key_url": "https://play.cartesia.ai/keys"
  },
  "pricing": "freemium",
  "links": {
    "repo": "https://github.com/cartesia-ai/cartesia-mcp",
    "docs": "https://docs.cartesia.ai/tools/ai/mcp",
    "site": "https://www.cartesia.ai"
  },
  "added": "2026-06-11",
  "verified": "2026-06-11",
  "notes": "Officially supported, on PyPI as cartesia-mcp; ~16 tools. Optional CARTESIA_ADMIN_API_KEY enables account-management tools; OUTPUT_DIRECTORY controls where audio is saved."
}