How do I run Create an AI Avatar from Video with Codex MCP?

Codex can use medux_avatar_clone_by_video through Medux MCP to create a reusable avatar asset from an uploaded source video. The workflow identifies the exact inputs, reviews the tool arguments, monitors processing, and verifies the returned result.

Codex MCP tutorial · clone

How to create an AI avatar from video with Codex MCP and Medux

Q: Which MCP tool does this tutorial use?

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

Use Codex and Medux through MCP to create a reusable avatar asset from an uploaded source video. This guide covers input preparation, the approval gate, task monitoring, and a concrete output check.

POST/api/app/v1/clone/avatar/by_video

Create a reusable avatar asset from an uploaded video file.

Open the Create Avatar by Video API reference →

Codex-specific workflow

Run Create an AI Avatar from Video as a Codex MCP task

Use the active workspace as the source of truth. Ask Codex to identify the source video file ID and a recognizable asset title, select medux_avatar_clone_by_video, 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_avatar_clone_by_video through Medux MCP to create an AI avatar from video.
First inspect and identify the source video file ID and a recognizable asset title.
Show me the exact tool arguments before execution.
After the task completes, return the reusable avatar asset ID and verify that the avatar task completes and the returned asset belongs to the intended source video.

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 reusable avatar asset ID. The final check is explicit: confirm that the avatar task completes and the returned asset belongs to the intended source video.

What this tutorial does

Medux operation

Create a reusable avatar asset from an uploaded video file.

Agent workflow

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

Before you start

Authentication

Authentication is required via Authorization header.

Preconditions

Requires a valid file id created from an uploaded source file.
Upload and create the source asset first.

Prompt Codex

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

Clone a reusable avatar from the uploaded source video {file id}. Title it Official avatar clone sample.

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.
`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_avatar_clone_by_video 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 Avatar by Video

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_avatar_clone_by_video 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_avatar_clone_by_video
  ↓
Review inputs and approve the tool call
  ↓
Medux runs Create Avatar by Video
  ↓
Codex reports the response and output

Frequently asked questions

Can Codex use the Medux Create Avatar by Video API through MCP?

Codex can call the medux_avatar_clone_by_video Medux MCP tool to create a reusable avatar asset from an uploaded video file. 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_avatar_clone_by_video. Review its arguments before approval and consult the API reference for the current contract.