Showcase: our own 26 second vertical explainer

This is the video we use to explain Second Studio, and it is the one I point people to first. It is 26 seconds, vertical, narrated, with big captions under every word. It opens on an agent chat where someone asks for a 30 second launch video, then walks through the four steps: connect, brief, render, real HTML, and ends on our logo.

The narration is the whole pitch: "Your agent can write the script. Now it can ship the video. Second Studio is a video API built for AI agents. Connect it over MCP and your agent gets one new tool: make a video. Send a brief, your brand, and your footage. We write the scenes, voice them, caption them, and render in the cloud. Every frame is real HTML, so it looks exactly like your brand."

How we made it

1. The script came first, written as scenes with one idea each: the hook, the four steps and the close.
2. The voice was generated from that script, and we kept the word timings that come back with it.
3. Each scene is an HTML page: a mock agent window, a config file being typed, a brief box, a timeline with scenes, voice and captions tracks, and a code panel next to the rendered frame.
4. The captions are placed on the exact spoken word using those timings. Emphasis words like "ship", "brief" and "make" are set in an italic accent.
5. The renderer captured every frame in the cloud, mixed the voice with a music bed and a few clicks, and checked the file for black frames and silence before it came back.

How your agent can make one

This is the most direct showcase to reproduce through the API, because it is exactly what create_explainer does. Over MCP, the agent needs one sentence and your brand kit:

POST /v1/explainers
{
  "brandId": "<your brand kit>",
  "aspect": "9:16",
  "captions": true,
  "voiceover": true,
  "brief": "30 second vertical explainer for our API. Audience: developers building agents. Hook: your agent can write the script, now it can ship the video. Four steps: connect, brief, render, on brand. CTA: get started."
}

If you want to review the words first, call write_script with the same brief, edit the scenes, and pass the script instead of the brief.

What it costs

$1.40 on the starter pack. A 16:9 version from the same script is another 12.

Get started and have your agent make yours.

explainers vertical captions voiceover