Matt Cortland wanted to know the price of a pint of Guinness – at every pub in Ireland.
So he built an AI voice agent called “Rachel” and had her phone 3,000+ pubs over Paddy’s weekend 
From a recent feature…
The whole thing cost about €200 to run plus a lot of my time.
Rachel used a Northern Irish accent and kept it simple – ask the price, say thanks, hang up.
2,052 pubs answered. Over 1,000 gave a verified price 
Some highlights from the calls 
- A bartender in Kilkenny offered to buy Rachel a pint
- One in Tipperary asked her name, then told her to “f**k off”
- At a Premier Inn, Rachel got stuck talking to another AI. She said “Oh, dear” four times. Nobody got a pint price.
The result is The Guinndex – a searchable price index across all 32 counties.
The setup: AI voice tools, a phone API, and Google Maps for pub numbers. All in, about €200.
We recently covered Frey Chu building niche directories from scraped Google Maps data – earning $2,500+/month from ads and leads.
Now imagine applying Frey’s model here: scrape the listings, call them with AI to collect data you can’t find online – prices, wait times, availability – then monetize that directory 