X monitors — real-time events

Watch an X/Twitter account or keyword in real time and receive events the moment they happen — new posts, replies, reposts, quotes, mentions, and profile changes — by polling a free event feed or by registering an HMAC-signed webhook. Trigger whenever the user wants to be notified about X activity, watch or track an account or topic, get alerted on mentions, stream X events to their own endpoint, or set up webhooks for Twitter — including casual phrasings like "tell me when someone tweets about us" or "watch this account". Paid per prepaid hour in USDC via twitr.sh through an x402 wallet — no API key, no signup. Do NOT trigger for one-off searches (use x-twitter-data) or …