MCP Setup for OpenAI Codex

This guide walks you through adding the webtranscriber.com MCP server to OpenAI Codex , so Codex can transcribe audio and video from any URL inside agentic coding sessions.

1. Add the MCP server

Run the following command in your terminal:

codex mcp add webtranscriber --url https://webtranscriber.com/mcp

Follow the instructions printed by the command above to complete the OAuth authentication flow. You will be directed to webtranscriber.com to log in and grant access.

2. Verify the setup

Start a Codex session and ask it to transcribe a video:

Please transcribe this video: https://www.youtube.com/watch?v=taeX8tgpPRQ

Codex should call start_transcription , poll for the result, and return the full transcript. The transcript will also appear on your account page .