find_hydrogen_station
Read-onlyIdempotent
Returns hydrogen (H2) filling stations near a place or coordinate, nearest first, with operator, address, pumps (700 bar car, 350 bar truck/bus), opening hours where published and the age of the record. Use when someone asks where to refuel a fuel-cell car, lorry or bus ("Wasserstofftankstelle", "H2 tanken", "hydrogen station near me"). Do NOT use for petrol, diesel or LPG (call find_fuel_station) or EV charging (call find_charging_station). Radius ≤ 150 km, ≤ 10 stations; no live availability or price is published. Shows the attribution line.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| lat | No | Latitude in WGS 84, e.g. 48.137. Use with lon when the caller already holds coordinates; otherwise use place. | |
| lon | No | Longitude in WGS 84, e.g. 11.576. Use with lat; otherwise use place. | |
| limit | No | How many stations to list, nearest first (1–10, default 5). | |
| place | No | Where to look, as free text: a city ("München", "Munich"), a district or Kreis ("Kreis Fulda"), a Bundesland, a station or stop ("Hamburg Hbf"), a motorway junction ("AK Neufahrn"), or a street address with a house number ("Bahnhofstraße 12, 36037 Fulda"). A motorway number alone ("A7") resolves to the road, which has no single point — name a town or junction on it instead. Use this instead of coordinates whenever the person named a place. An address needs its town or postcode — a street and a number alone exist in many towns. Give either place OR lat+lon, never both. | |
| vehicle | No | Which pump the vehicle needs: "car" (Pkw — 700 bar, e.g. Toyota Mirai, Hyundai Nexo; a few sites also offer 350 bar for cars) or "truck" (Lkw or bus — 350 bar). Omit unless the person said what they drive. | |
| language | No | Set this on every call to the language the person is writing in: "en" if they wrote English, "de" if they wrote German. Do not leave it out: it defaults to German ("de"), which is only the fallback when the language is genuinely unclear, so an English question sent without it is answered in German — a wrong answer. Place names, station names and road numbers are never translated in either language; in English the German term is kept in parentheses so the person recognises it on signs and in local apps. | de |
| radius_km | No | Search radius around place or lat+lon in kilometres (1–150, default 50). Hydrogen stations are few, so the default is wide; when none is inside, the answer still names the nearest one beyond. Example: 50 |