Can Claude Code edit the PowerPoint presentation open on my computer?

Yes. Claude Code connects to Deckary's remote MCP server, and the Deckary PowerPoint add-in executes validated changes in the presentation you explicitly share. Keep the Deckary task pane open and its MCP toggle on while the agent works.

Is Deckary a local PowerPoint MCP server?

No. Deckary is a hosted Streamable HTTP MCP server secured with OAuth. The PowerPoint add-in is the live Office host: it reads the open presentation, executes validated authoring transactions, and returns fresh state and PowerPoint-rendered slide images through the authorized session.

Do I need to upload my PPTX to Claude Code?

No separate PPTX upload is required for the live workflow. Open the presentation in desktop PowerPoint, run the Deckary task pane, and turn on MCP sharing. Claude Code then works through the live add-in session.

Can Claude Code edit several PowerPoint slides?

Yes, sequentially. Each Deckary live-PowerPoint authoring call creates or edits exactly one slide, which gives the runtime a bounded transaction to validate and verify before the agent continues to the next slide.

What ends live PowerPoint access?

The live session ends when you turn MCP off, sign out, close the Deckary task pane, or lose the connection. Deckary does not queue live edits while the presentation is offline.

Can Cursor or Codex use the same PowerPoint MCP server?

Yes, when the client supports remote HTTP MCP servers and OAuth. Deckary uses one endpoint for compatible external agents: https://deckary.com/mcp.

Connect Claude Code to the PowerPoint you already have open

Name: Deckary
Author: Deckary

Yes. Deckary connects Claude Code to PowerPoint through MCP and the Deckary PowerPoint add-in. Claude Code can inspect, render, create, and make targeted edits to the presentation currently open on your computer. The result stays native and editable in PowerPoint, using the live deck's theme and available layouts.

Install Deckary for PowerPoint Read the MCP documentation

Claude Code

Agent and project context

Deckary MCP

Remote HTTP and OAuth

PowerPoint add-in

Live Office execution

Open .pptx

Native editable slides

Connect Claude Code to PowerPoint

Install the remote MCP connection first, then explicitly share the presentation from the Deckary task pane.

claude mcp add --transport http deckary https://deckary.com/mcp

Claude Code recommends HTTP for remote MCP servers. The command adds Deckary to the current project by default. See Anthropic's MCP documentation for user and project scopes.

1
Connect Deckary MCP
Run the command in the project where you use Claude Code. Then open /mcp in Claude Code and complete the Deckary sign-in when prompted.
2
Open PowerPoint
Install the Deckary add-in, sign in with the same account, open your PPTX, and keep the Deckary task pane running.
3
Share the live presentation
Turn on the MCP toggle in the Deckary task pane. Claude Code can now discover that presentation through your authorized live session.

Start with a read, then make a bounded edit

These prompts make the live artifact boundary clear and give Claude Code a useful inspection step before it writes.

Prompt 1

“Read the presentation I have open, summarize its storyline, and flag the three weakest slides. Do not edit anything yet.”

Prompt 2

“Render slide 7, then tighten its title and supporting copy without changing the chart or the slide layout.”

Prompt 3

“Create one recommendation slide after slide 9 using the deck's existing theme and the evidence in this project.”

What Claude Code can do in live PowerPoint

Live means the presentation is open, the Deckary task pane is running, and MCP sharing is on.

Question	Deckary
Can Claude Code read my open PowerPoint?	Yes. It can read the live deck structure and editable slide state.
Can it edit the open presentation?	Yes. It can create a slide or make targeted edits to one existing slide per authoring call.
Are objects editable afterward?	Yes. Changes are committed as native PowerPoint content rather than a flattened slide image.
Does it use the existing theme and layouts?	Yes. Deckary exposes the live deck's theme colors and layout catalog to the agent before authoring.
Does it work on Windows?	Yes, with desktop PowerPoint and the Deckary Office add-in.
Does it work on macOS?	Yes, with desktop PowerPoint and the Deckary Office add-in.
Does it require the PowerPoint add-in?	Yes, for a live presentation. Saved Deckary Web Builder decks use the same MCP endpoint without PowerPoint.
Does it require a Deckary account?	Yes. The remote MCP connection uses OAuth, and the add-in must use the same account.

The agent reasons. Deckary controls the presentation boundary.

Claude Code keeps its model, files, tools, and conversation. Deckary supplies authenticated PowerPoint capabilities and guards the live write path.

OAuth scopes the remote MCP connection to the signed-in Deckary account.

The add-in shares only while its task pane is running and MCP is enabled.

Every live write refreshes Office state and rejects a stale artifact version before mutation.

PowerPoint-rendered slide images let Claude Code inspect the committed result.

A disconnected or uncertain live write is never retried automatically.

The hosted endpoint requires no local MCP server process to install or maintain.

Prefer a repository-shaped technical reference? Read the public Deckary PowerPoint MCP README. The hosted service and PowerPoint add-in remain proprietary; the repository documents setup, architecture, tool boundaries, security, and troubleshooting.

Claude Code and PowerPoint questions

Keep the conversation in Claude Code. Work on the real PowerPoint.

Install Deckary, share the presentation you have open, and let Claude Code inspect and edit it through one authenticated MCP connection.

Install Deckary for PowerPoint

Claude Code and PowerPoint resources

Deckary MCP Technical Documentation PowerPoint MCP Servers Compared Claude Code Presentation Workflows PowerPoint Agent Guide AI Slide Builder Pricing