Video block
Displays a video with its thumbnail, title and description; supported providers play in place.
| Type | video |
| Available in | Messages, Modals, Home tab |
Fields
Section titled “Fields”| Field | Type | Description | Required? |
|---|---|---|---|
type |
String | The type of block. For a video block, type is always video. |
Required |
alt_text |
String | A tooltip for the video. Required for accessibility. | Required |
author_name |
String | Author name to show. Fewer than 50 characters. | Optional |
block_id |
String | A unique identifier for the block. Maximum length is 255 characters. It must be unique within the message or view — a duplicate is replaced and reported as a warning. | Optional |
description |
Text object | Description of the video, as a plain_text text object. Fewer than 200 characters. |
Optional |
provider_icon_url |
String | Icon for the video provider. | Optional |
provider_name |
String | The application or site the video comes from, e.g. Vimeo. | Optional |
title |
Text object | Video title, as a plain_text text object. Fewer than 200 characters. |
Required |
title_url |
String | An https link for the title — the video’s page. | Optional |
thumbnail_url |
String | The thumbnail image URL. | Required |
video_url |
String | The https URL of the video to play. | Required |
Examples
Section titled “Examples”A YouTube video
Section titled “A YouTube video”YouTube, Vimeo and Loom links play in place on the web. Use your own video’s watch and embed URLs.

{ "blocks": [ { "type": "video", "title": { "type": "plain_text", "text": "Product walkthrough" }, "title_url": "https://www.youtube.com/watch?v=VIDEO_ID", "video_url": "https://www.youtube.com/embed/VIDEO_ID", "thumbnail_url": "https://picsum.photos/id/0/1280/720", "alt_text": "Product walkthrough video", "provider_name": "YouTube", "description": { "type": "plain_text", "text": "A five-minute tour of the new quote builder." } } ]}A hosted video file
Section titled “A hosted video file”Not a supported provider, so the web opens it in a new tab and mobile plays it in the app.

{ "blocks": [ { "type": "video", "title": { "type": "plain_text", "text": "Installing the POS Terminal X2" }, "video_url": "https://videos.example.com/training/pos-x2-install.mp4", "thumbnail_url": "https://picsum.photos/id/2/1280/720", "alt_text": "Installation training video", "author_name": "Training team", "description": { "type": "plain_text", "text": "Unboxing, mounting and pairing the terminal with a receipt printer." } } ]}