Submission by Allen

Sentinel is a web intelligence tool that monitors topics on the internet and calls you when something important changes. Not an email, not a Slack ping, an actual phone call with a spoken briefing explaining what happened, why it matters, and which sources back it up. The problem is simple. Important things happen online every day. Competitor launches, pricing changes, regulatory shifts, security advisories, job openings. By the time they reach your inbox or feed, everyone already knows. Existing monitoring tools send notifications that get buried. Sentinel makes the alert impossible to ignore by calling your phone and speaking the update in plain language. It works in two modes. Personal mode calls one person. Team mode calls everyone at once, but each person hears a different briefing based on their role. The CEO hears strategic implications, the engineer hears technical impact, and the CFO hears the financial angle. Same event, different perspectives, delivered simultaneously. Every alert stores the exact source URLs, a full call transcript, and a written summary so you can always trace back why Sentinel interrupted your day and what evidence it found. Firecrawl is used at two stages. Firecrawl Search runs every 15 to 60 minutes to scan the web for a monitored topic and pull back structured content. The backend compares each new snapshot against the previous one to detect meaningful changes. When a change scores high enough, Firecrawl Agent runs autonomous deep research across multiple sources to verify the signal and gather context before any call goes out. ElevenLabs powers the voice layer. When a change crosses the threshold, the backend generates a briefing with Claude and uses the ElevenLabs Conversational AI outbound call API to place a real phone call. The agent speaks the briefing naturally and can handle follow-up questions on the call. For team watches, multiple calls fire at the same time, each with a different spoken message tailored to that person's role. After the call ends, transcripts sync back through the ElevenLabs webhook and get stored for review on the dashboard. Know more at sentinel-ai.up.railway.app.