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Draft changelog: usage credits, broadcast events, PPU cap #335

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Draft changelog: usage credits, broadcast events, PPU cap #335

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18 changes: 18 additions & 0 deletions changelog.mdx
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Expand Up @@ -7,6 +7,24 @@ keywords: ["changelog", "API updates", "release notes", "what's new", "API chang

To subscribe to updates, please [**“Turn on notifications”**](https://help.x.com/en/managing-your-account/notifications-on-mobile-devices#:~:text=In%20the%20top%20menu,%20you,you%20would%20like%20to%20receive) for [**@API**](https://x.com/api). You can also follow this changelog in your feed reader via the [**RSS feed**](https://docs.x.com/changelog/rss.xml).

<Update label="Aug 24, 2026" description="X API v2">
### Usage credits endpoint

Today, we added the [`GET /2/usage/credits`](/x-api/usage/get-usage-credits) endpoint. You can now programmatically check your Pay-Per-Use (PPU) credit balance in USD, making it easier to monitor spend and avoid interruptions. See the [Usage docs](/x-api/usage/introduction) for details.
</Update>

<Update label="Aug 21, 2026" description="X API v2">
### Broadcast events for X Activity API

Today, we added `broadcast.start` and `broadcast.end` events to the [X Activity API](/x-api/activity/introduction). You can now subscribe by User ID to receive real-time notifications when a user starts or ends a live broadcast. Both are public events and can be subscribed to with either app-only or user-context authentication.
</Update>

<Update label="Aug 13, 2026" description="X API">
### Pay-Per-Use monthly Post read cap raised to 3 million

We increased the monthly Post read cap on Pay-Per-Use plans from 2 million to 3 million. If you need higher volume, consider an [Enterprise plan](/forms/enterprise-api-interest). Learn more about [Post caps](/x-api/fundamentals/post-cap).
</Update>

<Update label="Aug 13, 2026" description="X Ads API">
### Updated `video_total_views` definition

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