Cartesia Voices API

openapi: 3.1.0
info:
  title: Cartesia Auth Voices API
  description: Cartesia is a real-time multimodal AI platform built around the Sonic text-to-speech and Ink streaming speech-to-text models. The REST API supports synchronous and streaming generation, voice management, voice cloning, and access-token issuance.
  version: '2024-11-13'
  contact:
    name: Cartesia
    url: https://docs.cartesia.ai
servers:
- url: https://api.cartesia.ai
  description: Production
security:
- ApiKeyAuth: []
- BearerAuth: []
tags:
- name: Voices
paths:
  /voices:
    get:
      tags:
      - Voices
      summary: List voices
      operationId: listVoices
      parameters:
      - $ref: '#/components/parameters/CartesiaVersion'
      responses:
        '200':
          description: Voice list
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Voice'
  /voices/{id}:
    parameters:
    - $ref: '#/components/parameters/CartesiaVersion'
    - in: path
      name: id
      required: true
      schema:
        type: string
    get:
      tags:
      - Voices
      summary: Get a voice
      operationId: getVoice
      responses:
        '200':
          description: Voice
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Voice'
    patch:
      tags:
      - Voices
      summary: Update a voice
      operationId: updateVoice
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
      responses:
        '200':
          description: Updated voice
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Voice'
    delete:
      tags:
      - Voices
      summary: Delete a voice
      operationId: deleteVoice
      responses:
        '204':
          description: Deleted
  /voices/clone:
    post:
      tags:
      - Voices
      summary: Clone a voice from a sample
      operationId: cloneVoice
      parameters:
      - $ref: '#/components/parameters/CartesiaVersion'
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              required:
              - clip
              - name
              properties:
                clip:
                  type: string
                  format: binary
                name:
                  type: string
                description:
                  type: string
                language:
                  type: string
                mode:
                  type: string
                  enum:
                  - stability
                  - similarity
      responses:
        '200':
          description: Cloned voice
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Voice'
  /voices/localize:
    post:
      tags:
      - Voices
      summary: Localize an existing voice to a different language
      operationId: localizeVoice
      parameters:
      - $ref: '#/components/parameters/CartesiaVersion'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - voice_id
              - language
              properties:
                voice_id:
                  type: string
                language:
                  type: string
                name:
                  type: string
      responses:
        '200':
          description: Localized voice
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Voice'
components:
  parameters:
    CartesiaVersion:
      in: header
      name: Cartesia-Version
      required: true
      schema:
        type: string
        example: '2024-11-13'
  schemas:
    Voice:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        description:
          type: string
        language:
          type: string
        embedding:
          type: array
          items:
            type: number
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
      description: Cartesia API key (sk_car_...)
    BearerAuth:
      type: http
      scheme: bearer
      description: Short-lived client access token