HeyGen CLI

The HeyGen CLI provides command‑line access to HeyGen’s video‑generation, translation, and lip‑sync services. It wraps the v3 API, allowing developers and AI agents to create video agents, digital twins, photo avatars, and dubbed videos directly from the terminal, with each command returning structured JSON suitable for scripting and CI pipelines.

Users can generate talking‑head videos from a single prompt, animate a photorealistic avatar built from one image, or produce a digital twin trained on video footage. The tool also supports translating videos into more than 175 languages, synchronizing lip movements to new audio, and generating speech with various voices.

Designed for agent‑first workflows, the CLI enables automated creation, polling, and downloading of avatar videos without manual scripting, making it a practical interface for developers who need to integrate video synthesis, multilingual dubbing, and avatar animation into automated processes.