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OpenAPI Specification

openapi: 3.2.0
info:
  title: ditto.audio Inference API
  description: Cloud API behind ditto.audio. The reader (reader.ditto.audio) and the voice studio (studio.ditto.audio) are separate apps sharing this one backend — see /docs/reader and /docs/inference for each app’s public surface. Third-party integrations want /docs/public (rendered for humans at https://ditto.audio/docs).
  version: '1.0'
  contact: {}
servers: []
tags:
- name: Inference
  description: The pure text+model→audio inference service — stateless, no book/persistence awareness
paths:
  /v1/inference/quota:
    get:
      operationId: InferenceController_quota
      parameters: []
      responses:
        '200':
          description: ''
      security:
      - bearer: []
      summary: Your current entitlements (parallel limit, voices)
      tags:
      - Inference
  /v1/inference/start:
    post:
      operationId: InferenceController_start
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/StartDto'
      responses:
        '201':
          description: ''
      security:
      - bearer: []
      summary: Start a cloud inference session (enforces tier parallel limit)
      tags:
      - Inference
  /v1/inference/sessions:
    get:
      operationId: InferenceController_sessions
      parameters: []
      responses:
        '200':
          description: ''
      security:
      - bearer: []
      summary: List your own inference sessions (pre-render/convert jobs)
      tags:
      - Inference
  /v1/inference/{id}:
    get:
      operationId: InferenceController_get
      parameters:
      - name: id
        required: true
        in: path
        schema:
          type: string
      responses:
        '200':
          description: ''
      security:
      - bearer: []
      summary: Poll a session/job — status + progress (chunksRendered/totalChunks)
      tags:
      - Inference
  /v1/inference/{id}/heartbeat:
    post:
      operationId: InferenceController_heartbeat
      parameters:
      - name: id
        required: true
        in: path
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InferenceHeartbeatDto'
      responses:
        '201':
          description: ''
      security:
      - bearer: []
      summary: Keep a session alive (call every ~20s while active)
      tags:
      - Inference
  /v1/inference/{id}/end:
    post:
      operationId: InferenceController_end
      parameters:
      - name: id
        required: true
        in: path
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/EndDto'
      responses:
        '201':
          description: ''
      security:
      - bearer: []
      summary: End a session
      tags:
      - Inference
components:
  schemas:
    InferenceHeartbeatDto:
      type: object
      properties: {}
    StartDto:
      type: object
      properties: {}
    EndDto:
      type: object
      properties: {}
  securitySchemes:
    bearer:
      scheme: bearer
      bearerFormat: ditto_sk_live_… API key, ditto_oat_… OAuth access token, or a session JWT
      type: http
      description: An API key (`ditto_sk_live_…`, made at https://ditto.audio/account/api-keys) authenticates /v1/audio/* and /v1/reader/*; an OAuth connection's one-hour access token (`ditto_oat_…`) holds the audio:read and audio:speech scopes only. Account routes (/v1/api-keys, /v1/usage, /v1/subscription) take the signed-in session's token (a JWT) only.