FableCut: an open-source video editor AI agents can operate directly
ronak-create/FableCutJul 7, 2026 · 9d ago
FableCut is a video editor built with zero external . Its defining feature is that it's designed to be driven by AI agents rather than a human clicking through a UI. The editing state is represented as a , so an agent can read and write that JSON to perform cuts, arrange clips, and otherwise edit programmatically.
It exposes both and a plain REST API for agents to connect to it. The editor's UI also live-reloads, so when an agent changes the timeline, the visible result updates immediately.
Key points
video editor that runs entirely in the browser
Edit state represented as a that AI agents can manipulate
Supports both MCP and REST API for agent
UI live-reloads so agent-made changes appear instantly