# The video generation API for product demos: the Demosmith API

Markdown version of https://demosmith.ai/api for AI assistants and other readers.
Last updated: 2026-11-11.

Turn any website into a finished demo video, without anyone recording it.
Connect Demosmith to your tools once, and every new release, customer or market
gets its own narrated demo. Included on every paid plan, with the same videos
as the Demosmith app.

## What it is

The Demosmith API is a video generation API built for product demos. Give it a
link to any website or web app and a sentence about what to show. It walks
through the product like a person would and sends back a finished video with a
voiceover, captions and zooms.

## Where teams use it

- **A demo for every release.** Product marketing gets a narrated video of each
  new feature the day it ships, ready for the changelog, the launch post and the
  sales team.
- **Demos that never go stale.** Re-make onboarding, help-centre and website
  demos whenever the screens change.
- **Every demo, in every language.** The same demo with a voiceover and captions
  in any of 31 languages.
- **Demo videos inside your platform.** Agencies and platforms make a demo of
  each client's own website or app from their own tools.

## How it works

1. **Connect it once.** A developer adds your Demosmith key to the tool you
   want, like your release process or your own app. Claude Code or Codex can
   do it too.
2. **Say what to show.** Each request is a link to the website and a sentence,
   like "show how a new user creates their first project."
3. **Get the finished video.** Demosmith records the product, edits it and adds
   the voiceover. The video lands in your Demosmith library and wherever your
   tools send it.

## What you get

- The same finished demo the Demosmith app makes
- A voiceover in 31 languages, with your choice of voice and tone
- Captions, zooms on every click and optional music
- Works behind a login: send your login with the request, and it is encrypted
  and only used to sign in
- Every video saved in your Demosmith library, labelled API

The API makes the narrated video. Interactive demos, docs, social clips and
product films are made in the Demosmith app.

## For developers

```bash
curl https://platform.demosmith.ai/v1/demos \
  -H "Authorization: Bearer $DEMOSMITH_API_KEY" \
  -d '{"url": "https://app.yourproduct.com", "task": "Show how a new user creates their first project"}'
```

Demosmith tells your tools when the video is ready. The quickstart, full
reference and a playground are at https://developers.demosmith.ai.

## Pricing

Included on every paid plan: Starter at $40 a month, Pro, Business and
Enterprise. Videos made through the API use the same AI minutes as videos made
in the app, based on the length of the finished video. The 3-day trial does not
include it.

## Links

- Developer docs: https://developers.demosmith.ai
- Make demos from Claude or ChatGPT instead: https://demosmith.ai/mcp.md
- Pricing: https://demosmith.ai/pricing.md