# HeyGen open-sources HyperFrames' Keyframes animation tool

By Steven Van · 2026-07-02

Run it via npx to let an AI coding agent inspect and correct generated motion straight from the command line.

HeyGen has open-sourced Keyframes, the animation system behind its editor's pro tools, as part of **HyperFrames**. It runs from the command line with npx hyperframes keyframes, letting an AI coding agent inspect motion it has generated and correct it directly rather than through the editor UI. HeyGen positions it as usable by beginners while going deep enough for After Effects users. Read the [announcement](<https://x.com/i/status/2072727079855247508>) for more, and see [HeyGen](<https://creatorstoolbox.com/tools/heygen>)'s page on Creators Toolbox.

[View media](<https://video.twimg.com/amplify_video/2072716536922701825/vid/avc1/1280x720/MnDF-GeiuLyYspEW.mp4>)

![HeyGen](<https://unavatar.io/heygen.com?fallback=false>)

HeyGen

Talking-head videos from AI avatars — pick from hundreds or build your own from a clip, script in 40+ languages, and translate with lip sync intact.

[View HeyGen →](<https://creatorstoolbox.com/tools/heygen>)

[Read HeyGen open-sources HyperFrames' Keyframes animation tool on Creators Toolbox](<https://creatorstoolbox.com/blog/heygen-keyframes-open-sourced-in-hyperframes>)

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Canonical source: https://creatorstoolbox.com/blog/heygen-keyframes-open-sourced-in-hyperframes