x-handle-availability

Overview

Checks whether an X handle is available, using a read-only X API v2 user-by-username check. Returns available=true when the handle is not found and available=false with public profile metrics when claimed. Requires X_BEARER_TOKEN; no posting, replying, liking, following, scraping, or account mutation. Use it as a Twitter username availability checker or social handle lookup for brand launch workflows.

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