How do I run Remove a Video Background with Codex MCP?

Codex can use medux_video_remove_background through Medux MCP to remove the background from an uploaded video. The workflow identifies the exact inputs, reviews the tool arguments, monitors processing, and verifies the returned result.

Codex MCP tutorial · process

How to remove a video background with Codex MCP and Medux

Q: Which MCP tool does this tutorial use?

This workflow uses medux_video_remove_background . Review its arguments before approval and consult the API reference for the current contract.

Use Codex and Medux through MCP to remove the background from an uploaded video. This guide covers input preparation, the approval gate, task monitoring, and a concrete output check.

POST/api/app/v1/process/video/background_removal

Create a video processing task that removes the background from an uploaded video.

Open the Create Video Background Removal API reference →

Codex-specific workflow

Run Remove a Video Background as a Codex MCP task

Use the active workspace as the source of truth. Ask Codex to identify the source video file ID and supported output settings, select medux_video_remove_background, and keep the Medux task ID and returned output with the rest of the project. Naming the input roles and the expected result prevents an agent from guessing which file should be used where.

Codex prompt pattern

In this workspace, use medux_video_remove_background through Medux MCP to remove a video background.
First inspect and identify the source video file ID and supported output settings.
Show me the exact tool arguments before execution.
After the task completes, return the background-removed video and verify that the main subject is retained through the clip and the full output plays correctly.

Approval gate

Before approving the call, compare the selected tool, file or asset IDs, ordering, timing, and output settings with the request. If a local filename was mapped to an uploaded Medux file ID, keep that mapping visible so it can be audited later.

Result verification

Let Codex monitor an asynchronous task until it reaches a terminal state, then save or report the background-removed video. The final check is explicit: confirm that the main subject is retained through the clip and the full output plays correctly.

What this tutorial does

Medux operation

Create a video processing task that removes the background from an uploaded video.

Agent workflow

Codex selects medux_video_remove_background, presents the arguments for review, calls Medux, and reports the response.

Before you start

Authentication

Authentication is required via Authorization header.

Preconditions

Requires a previously uploaded video asset.
Requires an existing video file id.

Prompt Codex

Start with a clear instruction that names the Medux operation and the intended inputs.

Remove the background from the uploaded source video {file id}.

Request fields to review

Confirm these values before approving the MCP tool call. The linked API page remains the source of truth for current limits and response semantics.

Field	Type	Requirement	Purpose
`file_id`	string	Required	Provide the value described in the API reference.
`region.height`	int32	Optional	Provide the value described in the API reference.
`region.width`	int32	Optional	Provide the value described in the API reference.
`region.x`	int32	Optional	X coordinate of the region's top-left corner in pixels.
`region.y`	int32	Optional	Y coordinate of the region's top-left corner in pixels.
`title`	string	Optional	Provide the value described in the API reference.

Step-by-step workflow

Connect Medux MCP to Codex

Add the Medux remote MCP endpoint to Codex, provide an authorized credential, and confirm that the medux_video_remove_background tool is available.

Prepare the required inputs

Prepare the source files, asset IDs, text, or settings required by the operation. Upload local media first when the tool requests file IDs.

Ask Codex to run Create Video Background Removal

Use one direct instruction with the intended values. Codex should select the Medux tool and show the proposed arguments before execution.

Review and approve the tool call

Check that the tool is medux_video_remove_background and that each file ID, task ID, option, and output setting matches your request before approving it.

Check the Medux response

If Medux returns an asynchronous task, let the agent monitor it until completion; otherwise review the immediate response and save any result identifiers or output URLs.

Workflow recap

User goal
  ↓
Codex selects medux_video_remove_background
  ↓
Review inputs and approve the tool call
  ↓
Medux runs Create Video Background Removal
  ↓
Codex reports the response and output

Frequently asked questions

Can Codex use the Medux Create Video Background Removal API through MCP?

Codex can call the medux_video_remove_background Medux MCP tool to create a video processing task that removes the background from an uploaded video. This guide covers the required inputs, approval flow, result handling, and the matching API reference.

Which MCP tool does this tutorial use?

This workflow uses medux_video_remove_background. Review its arguments before approval and consult the API reference for the current contract.