Transportation — entry 030 of 69
Tankerkoenig
Tankerkönig republishes the fuel prices that Germany's 14,000+ stations must report to the Markttransparenzstelle für Kraftstoffe, exposed as a free, Creative-Commons-licensed JSON API keyed to a registered `apikey`. Core endpoints return nearby stations by radius, price detail for a specific station list, and historical price series for a single station.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score64
Authentication15/25API key required
Pricing20/20Free to use
Docs0/20No docs or spec available
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/tankerkoenig/"><img src="https://greatapis.com/badge/tankerkoenig.svg" alt="Scored 64 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.