YouTube Shorts MCP: Automate Shorts from Claude

A YouTube Shorts MCP server gives Claude the tools to make a Short and post it to your channel. You type a topic. Claude writes the script, picks a voice, generates the visuals, adds captions, renders a 9:16 MP4, and publishes it to YouTube. The whole thing happens in one conversation, and you approve each step. This guide uses the hosted AITuber MCP server for Claude. It is the one server we know of that finishes the job instead of handing back a clip. We tested the workflow in Claude Desktop, claude.ai, and Claude Code in September 2026.

Key takeaways

• A YouTube Shorts MCP server is an MCP server whose tools cover the whole Short. That means script, voice, visuals, captions, a 9:16 MP4, and the upload to YouTube. Most video MCP servers stop at a silent clip.
• Setup is one URL, https://mcp.aituber.app, added as a custom connector in Claude. It works in Claude Desktop, claude.ai, and Claude Code with no install.
• The prompt that works has four parts: topic, length, “vertical Short”, and the channel to post to. Claude fills in everything else.
• You see the script before anything renders. Fixing the hook in chat is free. Re-rendering a finished Short costs credits.
• Claude will not post at 7am on its own. For a hands-off daily schedule, the YouTube Shorts automation tool does that job, and the MCP vs API guide covers where code takes over.

What a YouTube Shorts MCP server is

MCP stands for Model Context Protocol. It is the open standard that lets Claude call outside tools. A video MCP server adds video tools to the chat. A YouTube Shorts MCP server, in the sense we use here, goes further. Its tools get you all the way to a Short on your channel.

That distinction matters because most video MCP servers are model wrappers. Higgsfield, fal.ai, Replicate, and Kling each expose a generate_video tool that returns a clip of 5 to 15 seconds. No voice, no captions, no upload. You still open an editor to turn that clip into a Short. Our roundup of MCP servers for AI video sorts the category on exactly that line.

AITuber’s server is the pipeline kind. Ask your assistant to list its tools and you will see scripts, voices, video generation, exports, channels, and publications. Those are the six steps of a publishable Short, and the server owns all six.

Connect the server to Claude

The server is hosted. Nothing installs on your machine, and there is no API key to paste into Claude.

1. Open Settings, then Connectors, in Claude Desktop or on claude.ai.
2. Click Add custom connector and paste https://mcp.aituber.app.
3. Click Connect and sign in with your AITuber account when the browser opens.

The connector shows up in Claude Code on its own, so you set it up once. If you live in the terminal, this does the same job, and /mcp signs you in:

claude mcp add --transport http aituber https://mcp.aituber.app

One more thing before the first Short. Connect your YouTube channel in the AITuber dashboard. Claude can only post to channels you have already linked to your account. That is a one-time step, and it is where you grant YouTube access, not in Claude.

The workflow, one Short at a time

Type this into Claude:

Make a 45-second vertical YouTube Short about why octopuses have three hearts. Curious female voice, bold captions, and publish it to my YouTube channel with the title “Why Octopuses Have 3 Hearts”.

Six things happen, and you see each one.

1. The script comes back first. Claude calls the script tool and shows you the words before anything renders. Read the first line out loud. If it would not stop your thumb, say “make the hook a question” and it rewrites.
2. Claude picks a voice. It browses the voice library for a curious female voice and names its pick. Ask it to list a few candidates if you want to choose by name.
3. The video generates. AI images with motion, AI clips, or stock footage, depending on what you asked for. This usually takes 1 to 3 minutes for a Short, and Claude checks the status for you.
4. Captions are already on it. Word-synced captions are part of the render, not a separate step. Most Shorts get watched with sound off at first, so this is the step that keeps people from scrolling.
5. You get a 9:16 MP4. Ask for the download link if you want to keep a copy or upload elsewhere.
6. Claude publishes it. It looks up your YouTube channel from the list, then calls the publish tool with your title. You approve the tool call, and the Short goes live on your channel.

Claude asks before it runs an action that spends credits or posts something. The server can only touch your AITuber account. It cannot read your files, your browser, or your other connectors.

Making the Short fit YouTube

A Short is a vertical video of up to 3 minutes. YouTube raised the limit from 60 seconds in October 2024. Under a minute still performs best for most channels, because the feed measures how much of the video people finish. Tell Claude the length you want. It writes the script to fill that runtime, and a 45-second request comes back as a 45-second video.

Three details make the difference between a Short that gets recommended and one that does not.

Say “vertical” or “9:16”. If you only say “a Short”, Claude will usually infer 9:16, but saying it removes the guess. A 16:9 upload does not enter the Shorts feed.

Give the title in the prompt. The publish tool takes the title Claude passes. If you do not supply one, Claude writes one from the script. That is fine for a test and rarely what you want on a real channel. Keep it under about 60 characters so it does not clip on a phone.

Front-load the hook. Our breakdown of the Shorts algorithm covers why the first two seconds decide the swipe. Ask Claude for “the surprising part in the first sentence” and it complies.

Prompts that work for Shorts

Every prompt below runs as written once the connector is live. Swap the topic and keep the shape.

Facts and explainers

1. Make a 45-second vertical Short about 3 things that happen to your body when you skip breakfast. Calm male voice, publish to YouTube with the title “Skip Breakfast? This Happens”.

2. Create a 60-second Short explaining why the sky is blue to a 10-year-old. Warm female voice, bright visuals, bold captions. Give me the MP4 link and publish it.

3. Write a 50-second Short about the deepest hole humans ever dug, told as a countdown of 3 facts. Show me the script first.

Viral formats

4. Make a skeleton-style Short about what happens inside your body during a 24-hour fast, hour by hour. Post it to YouTube titled “24 Hours Without Food”.

5. Create a character-driven Short about a tiny robot learning to make coffee. Same character in every scene. Vertical, 45 seconds.

Series and batches

6. I run a stoic quotes channel. Write scripts for 5 Shorts, one quote each, and show me all five before generating anything.

7. Generate the first script as a 40-second vertical Short with a deep, slow male voice. Publish it to YouTube with the title you suggest, then do the same for the other four, one at a time.

8. Take the script from my last Short and rewrite it for a 30-second version. Generate that as a vertical Short with the same voice.

Account and housekeeping

9. Check how many credits I have left, then tell me how many 45-second Shorts that covers.

10. List my connected channels and check whether my last Short finished publishing.

Prompt 6 and 7 together are the batch pattern we use. Approve all the scripts in one pass, then let Claude walk down the list. It keeps the same voice and style across the set, and you spend your attention on the words rather than on the render button. The Claude MCP prompt guide has 20 more prompts for other formats.

What it costs

Connecting the server is free. Generating spends AITuber credits, and Claude shows the cost before it generates. On the Creator plan, the pricing page’s own estimate works out to about 70 Shorts a month. A 45 or 60-second Short costs more than that baseline, and so do AI clips.

Item	What it costs
New account	100 free credits, no card
A 30-second Short with AI images	About 35 credits, the estimate AITuber’s pricing page uses
What moves the price	Image quality tier, narration length, and seconds of AI clips
Creator plan	$39 a month, 2,500 credits
Pro plan	$69 a month, 5,000 credits
Studio plan	$129 a month, 10,000 credits

Two things keep the bill down. Pick the Basic image quality for talking-fact Shorts. It uses the fewest credits, and the captions carry the scroll anyway. And rewrite scripts in chat before you generate, because a re-render is the only cost you can fully avoid.

MCP access is included on every plan. It draws on the same account and credits as the dashboard and the AI video creation API. A Short costs the same whichever door you use.

Where Claude stops

Claude needs someone in the chat. If nobody types, nothing generates, and Claude will not wake up on a schedule and post a Short for you. That is a property of MCP, not of this server. A tool call happens when the assistant is asked to make one.

So there are two jobs here, and the chat is the right tool for one of them.

Use the Claude workflow when you want to react. A trending topic, a comment you want to answer with a video, a fact you just read. You describe it, approve the script, and it is on the channel before the moment passes.

Use Autopilot for the baseline. You set a niche, a voice, a style, and a posting schedule once. It generates Shorts into a review queue and publishes the ones you approve at the times you chose. Our guide to automating YouTube Shorts covers that setup end to end. Most channels we see run both: Autopilot posts one Short a day, and the Claude chat adds the timely extras.

If you are past ten Shorts a week and want zero conversation, that is the API. Same engine, same credits, no chat. The MCP vs API guide marks the crossover point.

Four ways to make a Short, compared

	By hand	Model wrapper MCP	AITuber MCP in Claude	Autopilot
Script	You write it	You write it	Claude writes it, you approve	Generated from your niche
Voice and captions	You record and caption	You add them in an editor	Included	Included
Vertical MP4	You export	You assemble the clip	Rendered for you	Rendered for you
Posting to YouTube	You upload	You upload	Claude publishes on request	Publishes on your schedule
Runs without you	No	No	No	Yes, after you approve the queue
Best for	One-off passion videos	A cinematic B-roll shot	Timely Shorts, batches, series	Daily output

What comes back

Finished videos made with AITuber

Every one of these came from a single prompt. Script, voice, captions, render, and publish in one pipeline.

Frequently Asked Questions

Basics

What is a YouTube Shorts MCP server?

It is an MCP server whose tools let an AI assistant like Claude make a Short and post it to YouTube. That means script, voice, visuals, captions, a vertical MP4, and the upload. Servers that only return a raw clip are video MCP servers, but they leave the Short unfinished.

Can Claude make YouTube Shorts on its own?

Not without a connector. Claude cannot render video by itself. Add the AITuber MCP server as a custom connector and it can write the script, generate the video, and publish it from the chat.

Does the AITuber MCP work in Claude Code too?

Yes. Add the connector once in Claude Desktop or claude.ai and it appears in Claude Code. Or run claude mcp add --transport http aituber https://mcp.aituber.app and sign in with /mcp.

Setup

Do I need an API key?

Not for the chat. Claude signs you in through the browser. Keys are only for headless setups where nobody can sign in, such as a CI job.

How do I let Claude post to my YouTube channel?

Connect the channel in your AITuber dashboard first. Claude then sees it when you ask for your connected channels and can publish to it. YouTube access is granted to AITuber, never to Claude.

Does it work on the free Claude plan?

The server works on any Claude plan that supports custom connectors. Video generation bills through your AITuber account, not through Claude.

Publishing

Can Claude schedule a Short for later?

Ask it to publish and the Short goes live once the render is done. For Shorts that post at set times every day, use Autopilot, which runs a schedule without a chat open.

What aspect ratio and length should I ask for?

Ask for 9:16 and a length under 60 seconds for most channels. Shorts can run up to 3 minutes, but shorter videos finish more often, and finish rate is what the feed rewards.

Will YouTube accept AI-generated Shorts?

Yes, as long as they follow the same rules as any upload. Original narration and edits count as your work. Our Shorts monetization guide covers the disclosure and reuse rules that apply.

Cost

How much does one Short cost?

About 35 credits for a 30-second Short with AI images, which is the estimate AITuber’s pricing page uses. Longer Shorts, higher image quality tiers, and AI clips cost more. New accounts get 100 free credits, no card required, and Claude shows the cost before it generates.

Is there an extra fee for using MCP?

No. MCP access is on every AITuber plan, and the connector adds nothing on top of credits.

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How we built this guide: we ran the workflow above in Claude Desktop, claude.ai, and Claude Code against the hosted AITuber MCP server at mcp.aituber.app in September 2026, and read the server’s tool list as Claude reports it. Plan prices and the per-Short credit estimate are from AITuber’s pricing page on 22 September 2026. The YouTube Shorts view figure is from Search Engine Journal’s report on YouTube’s own announcement, and the 3-minute Shorts limit is from YouTube’s October 2024 update. AITuber is a product we build, so this is a first-party tutorial rather than an independent review. MCP is an open standard and other servers work with Claude too.