UK Government Fuel Finder API

The API covers unleaded petrol (E10), diesel (B7), premium unleaded, and premium diesel. Data includes station name, brand, address, latitude/longitude, and current prices for each fuel type. There are over 37,000 registered stations in the database, though not all report prices at any given time.

The API uses OAuth 2.0 for authentication — developers obtain a client credentials token and use it as a Bearer token on subsequent requests. Responses are paginated with approximately 1,000 stations per page, so a full data fetch requires multiple requests.

WorthThePump fetches data from this API and caches it in its database for one hour. This means prices shown are typically within 60 minutes of the real forecourt price — accurate enough for planning a detour, but always worth glancing at the sign when you arrive.

Before this API existed, UK price comparison relied on volunteer-reported prices (PetrolPrices.com) or carrier pigeon-level methods. The mandatory reporting requirement is a major consumer benefit — it means for the first time every UK driver has access to comprehensive, near-live price data for free.

The API documentation is available at www.gov.uk/guidance/access-fuel-price-data.