Synthesia

Synthesia Translations API

The Translations API from Synthesia — 4 operation(s) for translations.

Documentation GitHub OpenAPI

Operations 4

PUT /translations/{videoId} Start or update video translation #

GET /translations/supported-languages Get supported languages #

GET /videos/{videoId}/xliff Retrieve XLIFF content #

POST /videos/from-xliff Create video from XLIFF #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/synthesia-translations-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: Synthesia Assets Translations API
  description: 'The Synthesia REST API enables programmatic creation of AI avatar videos from scripts and templates, with endpoints for videos, templates, dubbing projects, translations, assets, audit logs, and webhooks. Source: https://docs.synthesia.io/reference'
  version: '2.0'
  contact:
    name: Synthesia
    url: https://docs.synthesia.io/
servers:
- url: https://api.synthesia.io/v2
  description: Production
security:
- ApiKeyAuth: []
tags:
- name: Translations
paths:
  /translations/{videoId}:
    parameters:
    - name: videoId
      in: path
      required: true
      schema:
        type: string
    put:
      tags:
      - Translations
      summary: Start or update video translation
      operationId: upsertTranslation
      responses:
        '200':
          description: OK
  /translations/supported-languages:
    get:
      tags:
      - Translations
      summary: Get supported languages
      operationId: getSupportedLanguages
      responses:
        '200':
          description: OK
  /videos/{videoId}/xliff:
    parameters:
    - name: videoId
      in: path
      required: true
      schema:
        type: string
    get:
      tags:
      - Translations
      summary: Retrieve XLIFF content
      operationId: getVideoXliff
      responses:
        '200':
          description: OK
  /videos/from-xliff:
    post:
      tags:
      - Translations
      summary: Create video from XLIFF
      operationId: createVideoFromXliff
      responses:
        '201':
          description: Created
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: Authorization
      description: API key from the Synthesia dashboard, passed in the Authorization header on each request.