Small Black Coffee Index
A little side project to track the average price of a small black cup of coffee — an espresso or short black, no milk, no sugar.
Price Map
Click any pin to see details and open in Apple Maps.
Average Price Over Time
Monthly average across USD submissions.
How it works
- Scan a receipt Take a photo of your coffee receipt and Claude reads the price automatically.
- We verify it The AI confirms it's a genuine small black coffee purchase before it's accepted.
- Data updates live Your submission appears on the map and feeds the global average in real time.
Embed this index
Add a live price widget to your site or newsletter.
<iframe src="https://sbci.erickrueger.com/embed.html?stat=global" width="300" height="130" frameborder="0"></iframe>
Replace ?stat=global with ?city=Tokyo for a city-specific widget.
Preview →