I won the Zero to Agent hackathon by Vercel
I'm still buzzing.
Last week at the Halkin venue in London, I competed in the Zero to Agent hackathon hosted by Vercel — and walked away with the win.
What I built: PresenceScore
PresenceScore is a free AI-powered digital presence audit tool for London restaurants.
Here's the flow:
- You enter a restaurant name and postcode
- An 8-step durable AI agent kicks off — scraping Google Business Profile, website, Instagram, and press coverage in real time
- It scores the restaurant out of 100 across 6 dimensions: Discovery, Conversion, Social, Press, UGC, and Competitive
- It benchmarks against the 5 nearest competitors
- It delivers 3 prioritised quick wins — with estimated impact — all downloadable as a PDF
Built solo in one day.
The tech stack
- Vercel Workflow SDK — for durable, resumable agent execution
- Claude Sonnet — AI reasoning and structured insight generation
- Bright Data — real-time web scraping
- Next.js 15 + Tailwind CSS v4 + shadcn/ui
- Deployed on Vercel, heavily scaffolded with v0 by Vercel
The Vercel Workflow SDK was the key piece. Restaurant audits involve many sequential scraping steps that can fail or time out independently. Durable workflows let each step retry and resume without starting over — exactly what you need for a multi-source scrape in a live demo environment.
The demo
PresenceScore homepage — enter your restaurant name and London postcode
The event
The energy at Halkin was electric. A huge thank you to Oscar Falemara for organising, the judges, the team at Halkin Offices for hosting, and the sponsors:
- Bright Data — credits and hands-on guidance from Rafael Levi
- Mubit — great conversation with Eldar Utiushev about agent memory
- CodeRabbit
Try it / source
- Live: presencescore.co.uk
- Open source: github.com/statho7/v0-presencescore-ai-audit
I'd love your feedback — try auditing your favourite London restaurant and let me know if the score feels right.