Unbabel Machine Translation API

openapi: 3.0.3
info:
  title: Unbabel Translation Account Machine Translation API
  description: 'The Unbabel Translation API (tapi/v2) is an asynchronous REST API for the Unbabel Language Operations (LangOps) platform. Callers submit text with a source/target language pair, tone, and topic; Unbabel returns a job identifier (uid) immediately and processes the translation with always-on AI plus optional human review. Results are retrieved by uid, by listing jobs by status, or delivered to a callback URL. The API also exposes a pure machine-translation path (mt_translation) and helper resources for language pairs, tones, topics, word count, and account details.

    Authentication uses a token header of the form `Authorization: ApiKey <username>:<api_key>`. The production base URL is https://api.unbabel.com/tapi/v2 and a sandbox is available at https://sandbox.unbabel.com/tapi/v2. Endpoints for translation, mt_translation, language_pair, tone, topic, account, and wordcount are confirmed from Unbabel''s public developer docs and the official unbabel-py client; the asynchronous callback (webhook) payload is modeled from the documented callback behavior.'
  version: '2.0'
  contact:
    name: Unbabel Developers
    url: https://developers.unbabel.com
servers:
- url: https://api.unbabel.com/tapi/v2
  description: Production
- url: https://sandbox.unbabel.com/tapi/v2
  description: Sandbox
security:
- apiKeyAuth: []
tags:
- name: Machine Translation
  description: Pure machine-translation jobs, optionally upgradeable to human review.
paths:
  /mt_translation/:
    get:
      operationId: listMachineTranslations
      tags:
      - Machine Translation
      summary: List machine translations
      description: Lists machine-translation jobs, optionally filtered by status.
      parameters:
      - name: status
        in: query
        required: false
        schema:
          type: string
        description: Filter machine-translation jobs by status.
      responses:
        '200':
          description: A list of machine-translation jobs.
          content:
            application/json:
              schema:
                type: object
                properties:
                  objects:
                    type: array
                    items:
                      $ref: '#/components/schemas/Translation'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createMachineTranslation
      tags:
      - Machine Translation
      summary: Submit a machine translation
      description: Submits text for pure machine translation with no human review.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TranslationRequest'
      responses:
        '201':
          description: The created machine-translation job.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Translation'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /mt_translation/{uid}/:
    get:
      operationId: getMachineTranslation
      tags:
      - Machine Translation
      summary: Retrieve a machine translation
      description: Retrieves a single machine-translation job by its uid.
      parameters:
      - name: uid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: The requested machine-translation job.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Translation'
        '404':
          $ref: '#/components/responses/NotFound'
    patch:
      operationId: upgradeMachineTranslation
      tags:
      - Machine Translation
      summary: Upgrade a machine translation
      description: Upgrades an existing machine-translation job to a full human-reviewed translation.
      parameters:
      - name: uid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: The upgraded translation job.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Translation'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    TranslationRequest:
      type: object
      required:
      - text
      - source_language
      - target_language
      properties:
        text:
          type: string
          description: The source text to translate.
        source_language:
          type: string
          description: Source language code (for example en).
        target_language:
          type: string
          description: Target language code (for example pt).
        text_format:
          type: string
          enum:
          - text
          - html
          - xliff
          default: text
        tone:
          type: string
          description: Optional tone/register for the translation.
        topic:
          type: string
          description: Optional topic/domain for subject-matter context.
        callback_url:
          type: string
          format: uri
          description: Optional HTTP endpoint Unbabel will POST a notification to when the job status changes.
        instructions:
          type: string
          description: Optional free-text instructions for the translator.
    Translation:
      type: object
      properties:
        uid:
          type: string
          description: Unique identifier of the translation job.
        status:
          type: string
          description: Current job status (new, accepted, translating, delivered, etc.).
        text:
          type: string
          description: The original source text.
        translatedText:
          type: string
          description: The translated text, present once the job is delivered.
        source_language:
          type: string
        target_language:
          type: string
        text_format:
          type: string
        tone:
          type: string
        topic:
          type: string
        price:
          type: number
          description: Price of the translation job.
        wordcount:
          type: integer
        callback_url:
          type: string
          format: uri
  responses:
    Unauthorized:
      description: Missing or invalid API credentials.
    BadRequest:
      description: The request was malformed or missing required parameters.
    NotFound:
      description: The requested resource was not found.
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: Authorization
      description: 'Token authentication of the form `Authorization: ApiKey <username>:<api_key>`.'