# Mack

- **Event:** [Claude Build Day](https://cerebralvalley.ai/e/claude-startups-build-day)
- **When:** Sat, Jun 13 at 9:00 AM – 10:00 PM (PDT)
- **Where:** San Francisco, CA
- **Team:** [Mathis Grosjean](https://cerebralvalley.ai/u/mathisgj)
- **GitHub:** https://github.com/matgj/Mack
- **Website:** https://clock-tickets-meetup-bloomberg.trycloudflare.com/
- **Demo video:** https://www.loom.com/share/1fa356e6199e47ae9707505ba18b411c
- **Gallery:** https://cerebralvalley.ai/e/claude-startups-build-day/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/claude-startups-build-day/hackathon/gallery/140

Mack is an AI insurance broker that gets a contractor a real, bindable Certificate of Insurance (COI) in minutes instead of 3 days.

The problem: a contractor wins a job, but the general contractor won't let his crew on site without a certificate of insurance. Getting one today means Googling, a 45-minute phone call bounced between call centers, repeating the same info, answering insurance questions he doesn't understand, then a second call to pay by reading his card number aloud — about 3 days end to end.

With Mack, the contractor enter his business name and state. Mack pulls the rest, gets a real quote from the carrier, ranks the options with the why, and returns a certificate of insurance + pay link. No phone calls. Built by a licensed US broker, and every number is traceable to a real carrier — we never invent a quote.

It's a back-office workflow collapsed from days to minutes.

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Markdown version of https://cerebralvalley.ai/e/claude-startups-build-day/hackathon/gallery/140. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt