Video Replace Audio API

Replace a video’s audio track with a different one. The picture is untouched: an H.264 source is stream-copied rather than re-encoded, and anything else (VP9/WebM and friends) is re-encoded to H.264 so the result is a normal MP4. The output runs for as long as the SHORTER of the two inputs — a 60-second video given a 5-second track comes back 5 seconds long.

You can ask Video Replace Audio to handle image generation/editing. Powered by Pixazo via the Pixazo API gateway.

How to use this skill (agent instructions)

When this skill triggers, follow this script. The user should only ever have to give you their API key once.

Step 1 — Make sure you have a Pixazo API key

Check for the API key in this order:

1. PIXAZO_API_KEY environment variable
2. ~/.pixazo/api-key file (one line, just the key)
3. The current conversation (user pasted it earlier)