X search API for recent public posts. It uses read-only X API v2 when available, excludes retweets by default, supports a language filter, and returns post text, timestamps, metrics, and author fields. If X API access is unavailable, search mode returns clearly marked public-index results in the same tweets array. No posting, replying, liking, following, or account mutation. Use it as an X search API, Twitter search API, or public-post monitor.