GoKawiilIndependent tracker maps Costco gas prices across 600 US warehouses
A developer built a tool that scrapes Costco's undisclosed gas-price data from an internal API called AjaxGetGasPricesService, pulling prices from roughly 600 warehouses nationwide. The project began as a personal effort to compare two nearby Costco locations in Tampa during a spring fuel price spike tied to Strait of Hormuz tensions, then expanded into a broader dataset showing how Costco's gas pricing moved relative to competitors.
GoKawiil's interpretation of the reporting above, not reported fact.
Costco has long used cheap gas as a loss leader to draw shoppers, but it has never published pricing data in an accessible or centralized way, making it hard for consumers or analysts to track trends. This kind of independent data collection reveals how retailers manage fuel margins during volatile oil-price events and highlights how much pricing transparency depends on outside developers reverse-engineering internal company systems.
- A developer scraped Costco's internal gas-price API across ~600 warehouses to build a price-tracking map.
- The project was sparked by rising gas prices during the Strait of Hormuz crisis and personal cost comparisons in Tampa.
- Costco's gas pricing data isn't centralized, so the tool fills a transparency gap for consumers and analysts.
ScanGauge II Automotive Computer — If you're the kind of driver who runs mental math on which Costco has the cheaper pump, the ScanGauge II plugs into your OBD2 port and shows real-time fuel economy and trip cost right on the dash. It turns those price-per-gallon decisions into actual data about what each detour is costing you.
See ScanGauge II Automotive Computer on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: jack.bio, 2026-08-24
Published there as: “Tracking Costco gas prices”
Read the original report → The summary and analysis above are GoKawiil's own, written from reporting by the source above. Facts and quotes belong to the original publisher.