Summary

The panel has to be open — that is the whole integration, and it is also the safety catch.

Commands only execute while the mcp-bridge-auto panel is running with auto-run enabled, so nothing touches your project when you are not expecting it. Within that, the coverage is unusually deep for a motion tool: keyframes, expressions and track mattes are all reachable, not just layer creation.

What it is

An MCP server paired with an After Effects panel script. The server queues commands; the panel picks them up inside AE and runs them.

What you get

create-composition — a new comp with size, frame rate, duration and background colour
setLayerProperties — position, scale, rotation, opacity, blend mode, 3D toggle, track matte type and timing on a layer
batchSetLayerProperties — the same across several layers at once
setLayerKeyframe and setLayerExpression — keyframes on a property, and expressions added or removed
createCamera, createNullObject, duplicateLayer, deleteLayer and setLayerMask
getLayerInfo for reading a layer's position and 3D status back
run-script and get-results for arbitrary JS inside AE, and get-help for the command list
Text, shape, solid and adjustment layer creation, with fills, strokes and fonts

Requirements

Adobe After Effects 2022 or later and Node.js v14 or later. Build the project, run npm run install-bridge to copy the panel into your AE installation, then open Window > mcp-bridge-auto.jsx in After Effects and leave Auto-run commands checked. Point the client at build/index.js.

Setup effort

Build from source — clone the repository and build it, then point your client at the binary