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heygen Codex Plugin

Author
HeyGen
Category
Creativity
Topics
Design & Media Production
Version
2.2.4
First seen
2026-07-12
Last confirmed
2026-07-13
Explanation last updated
2026-07-12

The explanation below is AI-generated. Please verify it against the sources.

This is an OpenAI Codex/ChatGPT plugin for HeyGen that creates AI avatar videos and personalized video messages. Per the plugin.json and README, it includes two chained skills: heygen-avatar, which builds a persistent digital identity from a written description or hosted photo URL and selects (or clones) a voice, and heygen-video, which generates identity-first presenter videos through HeyGen's v3 Video Agent pipeline, handling avatar resolution, aspect-ratio correction, and voice selection automatically. According to the README, installing the plugin automatically connects the HeyGen ChatGPT app via OAuth on first use, and users can alternatively use the HeyGen CLI with an exported HEYGEN_API_KEY. Local files cannot be uploaded directly through the app connector; only hosted HTTPS media URLs or existing HeyGen asset_id values are accepted, so local photos or videos must be uploaded first via the CLI or the HeyGen assets API to obtain an asset_id.

Overview

According to the HeyGen homepage, HeyGen is an AI video generation platform that turns scripts, images, presentations, or PDFs into finished videos using AI avatars, voice cloning, and dubbing/translation into 175+ languages and dialects. It offers a free plan as well as paid plans, and provides a pay-as-you-go API for generating videos via the Video Agent, translating videos, creating text-to-speech, and building avatars and templates.

What you can do with heygen

  • Create a persistent digital avatar (digital twin) from a written description or hosted photo URL, with voice selection or voice cloning (heygen-avatar skill)
  • Generate identity-first presenter videos through HeyGen's v3 Video Agent pipeline, with automated avatar resolution and aspect-ratio correction (heygen-video skill)
  • Use the skills end-to-end through the connected HeyGen ChatGPT app, authenticated via OAuth on first use
  • Alternatively install the HeyGen CLI and export a HEYGEN_API_KEY to run the skills without the app
  • Upload local photos or videos first via heygen asset create --file or the HeyGen assets API to obtain an asset_id, since the app connector only accepts hosted HTTPS URLs or existing asset_id values

Sources

Original description (English)

Create HeyGen avatar videos and personalized video messages. Build a persistent digital identity from a description or hosted photo URL, then generate presenter-led videos with your digital twin.

History of heygen

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