---
title: "Cartesia (@cartesia)"
description: "Voice AI company building speech models and voice agents."
account: "cartesia"
---

# Cartesia

Voice AI company building speech models and voice agents.

## APIs

1 public API with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/cartesia/feed.md

- [Cartesia API](https://skmtc.dev/cartesia/apis/cartesia-api.md): Voice AI: text-to-speech, speech-to-text, voice cloning, and agents with phone numbers, webhooks and documents