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Prism

Gemini

Connect Gemini to your live After Effects project with Prism. Copy your MCP URL from the panel, paste it into Gemini, and get real editable keyframes back. No terminal, no code.

Yes, Gemini can drive After Effects. You install the Prism MCP panel, copy your personal MCP URL from it, and paste that URL into Gemini once. From then on Gemini can read your open composition and write real, editable layers and keyframes into it.

The short version
You bring your own Gemini subscription — Prism never resells model access.
One copy and paste. No terminal, no Node.js, no code editor.
The URL is permanent, so you add it once and it keeps working.
What comes back is native After Effects work you can still edit by hand.

What you need first

After Effects2024, 2025 or 2026, on macOS or Windows
GeminiAny current version with MCP support
PrismA plan (Free works) and the MCP panel installed
TimeAbout two minutes

Connect Gemini to After Effects

1
Install and activate the MCP panel
Install the panel and activate it with your license key. It has the format PRISM-XXXX-XXXX-XXXX-XXXX and covers two devices.
2
Click Connect in the MCP tab
Open the panel in After Effects, go to the MCP tab and click Connect. Your personal Prism MCP URL appears only after you connect.
3
Copy your MCP URL
Copy it from the panel. Treat it like a password — it identifies your device. It never changes, so you can always come back and copy the same one.
4
Add it to Gemini
Paste your URL where Gemini adds MCP servers — the exact place is in the next section.
5
Open a composition
Prism acts on the composition you have open. Whatever is active is what Gemini sees.
6
Confirm the loop
Ask Gemini: "Tell me about my current composition." When it reads your comp back to you, you are connected.

Where to paste it in Gemini

Open your client's MCP settings and add a custom MCP server, pasting the URL the panel shows.

In the Gemini CLI this lives in your settings.json under mcpServers, in the same shape every MCP client uses:

{
  "mcpServers": {
    "prism": {
      "httpUrl": "YOUR_PRISM_MCP_URL"
    }
  }
}

What to ask first

Once Gemini is connected, start with something small and checkable:

  • "Tell me about my current composition." — proves the read path
  • "Stagger these layers by two frames and ease them out." — proves the write path
  • "Transcribe this audio layer into subtitles." — proves Prism AI

More in your first prompts.

If it does not work

What you seeWhat it usually means
Gemini cannot reach PrismThe panel is closed. It has to be open in After Effects
It connects but sees no compositionNo comp is active — open one
The URL is rejectedIt was copied before clicking Connect. Click Connect, then copy
It asks for your license againThe key is not activated on this device

The longer list is in troubleshooting.

Common questions

Do I pay for Gemini and Prism separately?

Yes, and that is deliberate. You keep your own Gemini subscription and Prism never resells model access — which is exactly why AI actions have no cap on Pro. See your AI client.

Does Gemini see my project files?

No. Your .aep files, footage and comps stay on your machine. Only the structure of the open composition and the instruction you asked for make a round trip.

Can I use Gemini and another client at the same time?

Yes. The same URL works in every client, so you can add it to as many as you like and switch whenever you want.

Can I undo what Gemini does?

Yes. Every action lands as one step in After Effects history, so a single undo reverts it, and anything destructive is preceded by a restore point.

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