Add a subtitle or audio track to an asset
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Add a subtitle or audio track to an asset
with Mux · Media Asset Management
Works with AI assistants
Use Mux: its Mux Com Assets API lets you add a subtitle or audio track to an asset in a single step (POST /video/v1/assets/{ASSET_ID}/tracks). Mux also has an MCP server, so an AI assistant like Claude or ChatGPT can do it for you. capabilities.work can help you get signed up and connected.
- How do I attach a subtitles file to a video that's already uploaded?
- Can I add an alternate-language audio track to an asset?
- Does an asset need to be ready before I add a track to it?
Say it to your AI assistant
- Add a {type} track from {url} in {language_code} to asset {asset_id}.
- Attach subtitles from {url} in {language_code} named {name} to asset {asset_id}.
For your developer
POST /video/v1/assets/{ASSET_ID}/tracks in Mux Com Assets API. Full spec on APIs.io.