---
title: "Voice changer (speech-to-speech)"
method: POST
path: "/v1/speech-to-speech"
tags: ["voices"]
---

# Voice changer (speech-to-speech)

`POST /v1/speech-to-speech`

## Request

- Base URL: `https://varosity.ai/api`
- URL: `https://varosity.ai/api/v1/speech-to-speech`
- Auth: HTTP bearer

Convert a source recording (audioUrl) into a target voice (voiceId), keeping the delivery. Returns a hosted MP3. Scope: generate:voice.

## Request body

- object
  - `audioUrl` string, uri, required
  - `voiceId` string, required
  - `modelId` string

## Response `201`

Success

- object
  - `ok` boolean, required
  - `audioUrl` string, required

## Other responses

- `401`: Unauthorized
- `422`: Validation error

---

[API](https://skmtc.dev/varosity/apis/varosity-ai-api.md) · [All operations](https://skmtc.dev/varosity/apis/varosity-ai-api/llms.txt) · [OpenAPI document](https://skmtc.dev/varosity/apis/varosity-ai-api/revisions/81d0169a4897?raw)