[in beta] our parameters / spec will change over time. we’ll warn you as we make breaking changes - but these docs will always reflect the latest build.


welcome to the sync. api documentation. we provide a suite of apis that allow you to manipulate and synthesize video and audio content with state-of-the-art (sota) models. whether you’re looking to lipsync videos, animate static images, translate content across languages, or generate natural-sounding speech, our apis are designed to make these tasks simple and efficient.

the sync. apis are perfect for developers working on projects in content creation, localization, accessibility, and more. with just a few requests, you can enhance your video content, making it more engaging and accessible to a global audience.

getting started is easy. all you need is an x-api-key to authenticate your requests. from there, you can explore our various api endpoints, each tailored to specific video and audio processing needs. check out the openapi spec for a detailed description of available operations.

sync. openapi spec

View the OpenAPI specification file

base url

our apis adhere to REST principles and prioritize security, integrity, and privacy by enforcing HTTPS on all requests. start your requests with our base URL and explore the possibilities.

all requests start w/ the following base URL:


security and authentication

all sync. api endpoints expect an x-api-key header in every request. it’s a simple + secure way to authenticate your requests / generate accurate usage metrics across your api keys.

here’s how you can include it in your requests:

  "method": "POST",
  "url": "https://api.synclabs.so/lipsync",
  "headers": {
    "accept": "application/json",
    "x-api-key": "your_api_key_here",
    "Content-Type": "application/json"
  "body": {
    "audioUrl": "https://example.com/path-to-audio.mp3",
    "videoUrl": "https://example.com/path-to-video.mp4",
    "synergize": true,
    "maxCredits": null,
    "webhookUrl": null,
    "model": "sync-1.6.0"

checkout the quickstart quide to learn how to get your api key and start making requests today.

checkout out our api endpoints

dive into our comprehensive api offerings across various endpoint families designed to enhance your video and audio projects. each family serves a unique purpose, empowering your applications with advanced synchronization, voice generation, and animation capabilities.