# Cartesia

Cartesia text-to-speech: synthesize speech audio and browse voices.

- Repository: https://github.com/Anil-matcha/awesome-muse-connectors (1403 stars)
- Category: Media
- License: MIT
- Last updated: 2026-10-13
- Runs scripts: yes, review before use

## Install

Claude Code: `npx skills add Anil-matcha/awesome-muse-connectors --skill cartesia -g -a claude-code -y`
Codex: `npx skills add Anil-matcha/awesome-muse-connectors --skill cartesia -g -a codex -y`
Cursor: `npx skills add Anil-matcha/awesome-muse-connectors --skill cartesia -g -a cursor -y`
Gemini CLI: `npx skills add Anil-matcha/awesome-muse-connectors --skill cartesia -g -a gemini-cli -y`

## Description

Cartesia text-to-speech: synthesize speech audio and browse voices. Trigger phrases: cartesia, text to speech, TTS, synthesize voice, voiceover.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Cartesia

## Purpose
Generate spoken audio from text with Cartesia's Sonic models (40+ languages) and browse the Cartesia voice library. Reach for this when the user wants narration, voiceovers, or spoken-audio files produced from a script.

## Tooling
All commands go through `bin/cartesia.py`. Every request automatically sends the required date header `Cartesia-Version: 2026-08-14`.

```bash
bin/cartesia.py auth
# {"ok": true, "voices": 60} on success

bin/cartesia.py voices
# list available voices (id, name, language)

bin/cartesia.py voice-get --id <VOICE_ID>
# details for a single voice

bin/cartesia.py tts --text "Hello world" --voice-id <VOICE_ID> --out narration.wav
# synthesize speech to a local WAV file; prints the saved path

bin/cartesia.py tts --text "Bonjour le monde" --voice-id <VOICE_ID> \
    --language fr --model-id sonic-3 --out fr.wav
```

Notes:
- `tts` returns audio binary. The CLI writes it to `--out` (default `cartesia-output.wav`) and prints the resulting path.
- Streaming TTS (`POST /tts/sse`) and the WebSocket TTS/STT surfaces are real-time and outside CLI scope.

## Auth
- Provider id: `cartesia` (credential is collected as `custom.cartesia`)
- Collection: Cartesia API key (`sk_car_...`) via the secure credential flow (`credentials.request_api_access`); create one at play.cartesia.ai/keys
- Allowed hosts: `api.cartesia.ai`
- Connect placement: `bearer_header` (the key goes in `Authorization: Bearer <key>`)
- The API also requires the date header `Cartesia-Version: 2026-08-14` on every request; the CLI sends it for you.
- Status check: `bin/cartesia.py auth`

The rest: https://github.com/Anil-matcha/awesome-muse-connectors/blob/HEAD/connectors/cartesia/SKILL.md