
After Effects MCP Server
io.github.zachshallbetterPublished by GitHub account zachshallbetterv0.1.0Updated Oct 27, 2026
Drive Adobe After Effects from any MCP client: compositions, layers, animation and rendering.
Overview
Local MCP server that drives Adobe After Effects through ExtendScript, letting an assistant build compositions, layers, animation, effects and renders.
- What you can do
- Inspect and manage projects: project info, items, footage import, folders, save/open, dependency and font checks
- Create and configure compositions, markers, precomps and PNG frame exports
- Add, arrange, parent, trim, split and delete layers, and set transforms and layer properties
- Set properties, keyframes, easing and expressions, and edit or copy animation
- Apply effects and presets, edit effect controls, and manage text, masks, shapes, paint and roto
- Configure 3D cameras, lights and materials, tracking, colour management and audio
- When to use it
- Useful when an assistant should make or modify motion graphics work in After Effects on the same machine — assembling comps and layers, animating properties, applying effects, or queuing renders — instead of the user clicking through the UI.
- Requirements
- Runs locally via npx (Node.js 18 or later) on macOS or Windows with After Effects 2023 or later installed. On macOS, Automation permission is needed to control After Effects; in After Effects, scripts must be allowed to write files and access the network. Optional variables: AFTEREFFECTS_ALLOWED_DIRS, AFTEREFFECTS_APP_NAME, AFTEREFFECTS_SCRIPT_TIMEOUT_MS, AFTEREFFECTS_EXE.
Installation
In SourceWeft
- Open After Effects MCP Server in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
After Effects MCP Server
An MCP server that drives Adobe After Effects: projects and footage, compositions, layers, keyframes and expressions, effects, text, masks and the Render Queue. It runs on the machine where After Effects is installed and talks to it through ExtendScript, the scripting interface After Effects ships with.
Requires After Effects 2023 or later on macOS or Windows, and Node.js 18 or later.
Install
Claude Code:
Any client that reads an mcpServers block (Claude Desktop, Cursor, Warp, …):
On macOS the first call asks for permission to control After Effects (System Settings > Privacy & Security > Automation). In After Effects, turn on Settings > Scripting & Expressions > Allow Scripts to Write Files and Access Network, which file operations need.
Conventions
- Compositions are chosen with
comp:{ id }(item ids come fromlist_items),{ name }, or omitted for the active composition. - Layers are chosen with
layers:{ indexes: [...] }(1 = top, as in the Timeline),{ names: [...] }or{ selected: true }. - Properties are a shortcut (
position,scale,rotation,opacity,anchor_point,source_text, …) or a path of match names or names, such as["ADBE Effect Parade", "Gaussian Blur", "Blurriness"]. - Positions are pixels from the composition's top-left; times are
seconds; colours are
"#RRGGBB"or"rgb(r,g,b)". - Files must be inside your home folder or a directory in
AFTEREFFECTS_ALLOWED_DIRS.
Tools
help({ tool }) describes any tool's parameters.
How it stays out of your way
- No dialogs. Every script runs with After Effects' dialogs suppressed.
- One undo step per call. Each call that changes the project is one entry in Edit > Undo.
- Windows without COM. After Effects has no COM interface, so on Windows the
server hands scripts to
AfterFX.exe -rand reads the result back from a file. SetAFTEREFFECTS_EXEif After Effects is not in the default location. - Timeouts say why. If After Effects does not answer within
AFTEREFFECTS_SCRIPT_TIMEOUT_MS(default 120 s), the error says a dialog is probably open. Raise it for long renders. - No raw input in scripts. Every value a caller passes is validated and written into the script as a literal.
Configuration
ArtCraft (EffectCraft) Support
This server features transparent adapter support for Storytold's EffectCraft motion graphics application. When After Effects is not installed or running, or when AFTEREFFECTS_TARGET=craft (or ADOBE_TARGET=craft) is set, compatible tools route directly to EffectCraft's loopback bridge protocol (127.0.0.1:9877 by default or EFFECTCRAFT_CONTROL_PORT).
Development
src/data/effects.json is the effect catalog, built from the capability atlas
with node scripts/update-effects.js <path to adobe-capability-atlas>.
The audit checks each generated script against After Effects' scripting object model (types-for-adobe, After Effects 26.0). Nothing is validated against After Effects itself yet.
Source: packages/aftereffects/README.md at commit 44b5b50
Tools
0Version history
1- v0.1.0LatestOct 20, 2026
Score
50% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts