How to merge video clips with Claude MCP and Medux

Use Claude and Medux through MCP to combine multiple video clips into one ordered MP4. This guide keeps file roles and constraints in context, reviews the proposed call, and validates the returned result.

Claude receives a request to merge two MP4 clips with Medux
A natural-language request starts the complete Medux workflow.

What you will do

Use one prompt to coordinate file upload, video merging, task monitoring, and result delivery.

ClaudeMCPMeduxMP4 uploadVideo merge

Claude-specific workflow

Run Merge Video Clips as a Claude MCP workflow

Keep the goal, source assets, and constraints together in the conversation. Ask Claude to restate the source video clips in the intended playback order before proposing the Medux video merge tool. That context checkpoint makes the file roles and desired outcome easy to correct before any Medux call is approved.

Claude prompt pattern

Using the assets and requirements in this conversation, help me merge video clips with Medux MCP.
Restate which input fulfills each role: the source video clips in the intended playback order.
Propose the the Medux video merge tool call and summarize its arguments before asking for approval.
When it finishes, return the merged MP4 with a checklist confirming that every clip appears once in the correct order and the final video plays from start to finish.

Context checkpoint

Have Claude summarize the intended transformation, identify every source asset by role, and list the important constraints. Review that summary together with the proposed tool arguments; correct the conversation first if a file, order, time range, or setting is ambiguous.

Result verification

Keep the Medux task ID in the conversation while Claude checks progress. When processing ends, ask for the merged MP4 plus a concise validation checklist confirming that every clip appears once in the correct order and the final video plays from start to finish.

Before you start

Connect Medux through MCP

Make sure the Medux MCP connector is available in Claude and that your API credentials are configured.

Prepare compatible source clips

Place both MP4 files in an accessible local project folder. Using clips with compatible dimensions and codecs usually produces the cleanest transition.

Step-by-step workflow

01

Describe the merge task in one prompt

Tell Claude which files to combine and explicitly ask it to use Medux through MCP. In the recorded workflow, the two files are sample-clip-3s.mp4 and sample-clip-7s.mp4.

Use Medux to merge two video clips:
sample-clip-3s.mp4 and sample-clip-7s.mp4.
Upload the files using the curl command.
Prompt asking Claude to merge two video clips
Claude receives the file names and the expected upload method.
02

Let Claude inspect the files and choose the Medux tools

Claude checks that both clips exist, loads the Medux connector, and prepares signed upload URLs. This removes the need to manually search for endpoints or assemble the merge request yourself.

Claude inspects source clips and prepares upload URLs
Claude confirms the files and prepares the upload stage through Medux.
03

Upload each clip to the generated URL

Medux returns temporary signed URLs for the source files. Run the generated curl commands in your local terminal when the hosted Claude environment cannot directly reach the storage endpoint.

# The signed URL is generated by Medux and expires.
curl -X PUT   "SIGNED_UPLOAD_URL_FOR_CLIP_1"   -H "Content-Type: video/mp4"   --data-binary "@/path/to/sample-clip-3s.mp4"

curl -X PUT   "SIGNED_UPLOAD_URL_FOR_CLIP_2"   -H "Content-Type: video/mp4"   --data-binary "@/path/to/sample-clip-7s.mp4"
Page-width safe: the command block wraps long signed URLs and file paths, so it will not create horizontal overflow on desktop or mobile.
Claude provides curl commands for two signed upload URLs
When direct upload is blocked, Claude provides terminal-ready upload commands.
04

Confirm the uploads and start the merge

After both uploads succeed, tell Claude they are complete. Claude then submits the two uploaded asset URLs to the Medux video merge tool and begins monitoring the task.

Both uploads completed successfully.
Please start the Medux video merge task and keep checking until the result is ready.
Claude starts the Medux video merge task
The merge request is submitted after both source assets are available.
05

Open and review the merged output

When processing finishes, Medux returns the final video URL. Open the result, verify that the clips appear in the intended order, and check the transition point, audio continuity, duration, and playback quality.

Merged video result preview
Preview the final MP4 and confirm that both clips were joined correctly.

Workflow at a glance

Describe the task
Create upload URLs
Upload both clips
Run Medux merge
Preview the result

Why this workflow is useful

Claude handles the coordination while Medux handles the media processing. You keep the entire operation in one conversational workflow without building a custom upload interface, writing a dedicated API client, or switching between multiple dashboards.

Result: two source clips become one ready-to-use MP4 through a repeatable MCP workflow.

Explore related workflows

Continue with a nearby Medux workflow or compare how the same task works across Claude MCP and Codex MCP.

Related Medux tutorials

How to Add an Audio Track to Video with Claude MCP and MeduxHow to Add a Logo Watermark to Video with Claude MCP and MeduxHow to Remove Video Subtitles with Codex MCP and MeduxHow to Add a Logo Watermark to Video with Codex MCP and MeduxHow to Create a Lip-Synced Avatar Video with Codex MCP and Medux

Quick answer

How do I run Merge Video Clips with Claude MCP?

Claude can use the Medux video merge tool through Medux MCP to combine multiple video clips into one ordered MP4. The workflow keeps input roles and constraints in context, reviews the proposed call, and checks the returned result.

What does this Medux tutorial cover?

Claude can use the Medux video merge tool through Medux MCP to combine multiple video clips into one ordered MP4. The workflow keeps input roles and constraints in context, reviews the proposed call, and checks the returned result.

Related topics: Merge Video Clips · Merge Video Clips with Claude MCP · Medux MCP tutorial

Build with the API

API reference for this workflow

Use the API reference to automate this workflow, or follow the matching guide in our official GitHub repository.