On Monday, 9 June 2025, the social-media platform X deprecated its v1.1 media-upload endpoints and required users switch to their v2 API. You can read more in the announcement on X’s community site: X media upload endpoints update and extended migration deadline.
How am I impacted?
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The X ProMediaAPI has been retired:
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This means that video-thumbnail editing is no longer be possible.
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In addition, the limits for video uploads are changed according to the values below:
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|
Limit name |
New values (standard) |
Previous values (ProMediaAPI) |
|---|---|---|
|
Maximum video duration |
140 seconds |
10 minutes |
|
Maximum file size |
512 MB |
1 GB |
|
Maximum dimensions |
1920 × 1920 |
2160 × 2160 |
Action required
If you are an X ProMediaAPI user with posts scheduled in Publisher, you may receive a publishing error for posts you scheduled with the old platform limits. If you receive a publishing error, verify that the video content of the post is within the new platform limit values.
At this time, X has not revealed any alternatives to their ProMediaAPI. Until an alternative solution is provided, you will be unable to upload video content that exceeds their standard platform limits. Editing video-thumbnails will also not be possible.
Learn more:
X (formerly Twitter) Publishing