Introduction

A media object represents a single photo, video or animated GIF. Media objects are used by many endpoints within the X API, and may be included in Posts, Direct Messages, user profiles, advertising creatives and elsewhere. Each media object may have multiple display or playback variants, with different resolutions or formats.

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Media types & size restrictions

Size restrictions for uploading via API

• Image: 5 MB
• GIF: 15 MB
• Video: 512 MB (when using media_category=amplify_video)

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Creation

Objects such as Posts, Direct Messages, user profile pictures, hosted Ads cards, etc. can contain one or more media objects. These top-level objects are collectively known as entities. The relevant entity creation API (e.g. POST /2/tweets) can be passed one or more media objects using a unique media_id.

An entity which contains media object(s) can be created by following these steps:

1. Upload the media file(s) using either the recommended chunked upload (images/GIF/video), or the older simple upload (images only).
2. Receive a media_id from step 1. This step may be repeated multiple times with different media if the entity allows multiple media_id parameters to be passed in.
3. Create the entity by calling the appropriate endpoint, including the media_id and other required parameters. For example, attach a media_id to a Post using the POST /2/tweets endpoint.

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Retrieving

Please refer to the Media Object in the data dictionary.