X API v2 — Hide replies
Removed /x-api/posts/hide-replies/apps, which listed third-party apps that used the hide replies endpoint.
Rewrote Manage replies in real time as Manage replies in real time with Grok. The guide now receives replies through the X Activity API post.reply.create event, classifies them with Grok via the xAI API using structured outputs, and hides high-confidence violations with Hide Replies. The previous version used the deprecated Perspective API and the Account Activity API.
The updated guide adds a workflow diagram, Python and Node.js webhook examples, policy-tuning notes, user-control recommendations, and operational guidance (webhook timing, deduplication, token lifetime, and xAI pricing).
The Hide replies quickstart now links to this Grok-based real-time moderation guide.
X API v2 — Activity
On Get X Activity subscriptions, the description now notes that optional user_id narrows results to subscriptions whose filter.user_id matches, and that with a user-context token it must identify the authenticated user.
Changelog
The changelog has a new Oct 1, 2026 X API v2 entry for the real-time reply moderation guide rewrite.