Data Sources and Attribution

TravellerSeed is built on public and open datasets. Full credit and license notes below.

Live APIs:

• REST Countries — country data (licensing per project)
• Open-Meteo — weather forecasts, CC BY 4.0
• Frankfurter — European Central Bank reference rates (public data)
• WorldTimeAPI — time zone data
• Nager.Date — public holidays
• Wikipedia — background summaries, text under CC BY-SA 4.0

Bundled datasets:

• OurAirports.com — airport database, public domain (CC0)
• OpenFlights — airline routes, Open Database License (ODbL) 1.0 — attribution + share-alike required
• OpenStreetMap — map tiles, ODbL

Supporting and fallback sources:

• mledoze/countries — the country dataset REST Countries is built on, used at build time when REST Countries is unreachable (ODbL)
• dr5hn/countries-states-cities-database — population and IANA time zone fallback (ODbL)
• fawazahmed0/exchange-api — market reference rates for currencies the ECB does not publish (e.g. NGN, KES, AED), CC0
• IANA time zone database — local time and offsets, computed in your browser
• OpenFlights airports and airlines tables — airport time zones and airline names (ODbL)
• Plug types and voltages — hand-compiled from the IEC World Plugs reference

OpenFlights route data is a historical snapshot and may not reflect current schedules. Pages that show route data carry the line “Route data from OpenFlights (ODbL)”. Under the ODbL share-alike terms, our derived route table is available at /data/routes.json under the same licence.

Photography: via Unsplash under the Unsplash License. Thank you to:

• Aerial view of a rock fortress rising above green forest — Yasintha Perera
• View from an airplane window at golden hour — Eva Darron
• Airplane wing seen through a cabin window — Patrick Konior
• Airport departure board listing destinations and times — Amsterdam City Archives
• International banknotes spread across a table — Jason Leung
• Crowd releasing paper lanterns at a festival — Jenny Le
• Hand pointing at a world map beside a passport and camera — Global Residence Index
• Waterfalls tumbling down a green cliff toward the ocean — olio creative
• Boats lining the shore of a tropical beach — Laura
• Friends laughing together outdoors — Priscilla Du Preez
• People walking on a beach at sunset — Dustin Romeiro
• White sailboat on a blue sea — katy hardman
• Charles Bridge and Prague Castle at golden hour — William Zhang
• People eating at a busy street-food market — K X I T H V I S U A L S
• Traveller resting feet on luggage while watching a plane — JESHOOTS.COM
• Yurt on a green meadow beside a mountain lake — Ariungoo Batzorig
• Train crossing a stone viaduct through green hills — Mariana Proença
• Visitors below a five-storey pagoda in Kyoto — Cosmin Georgian
• Yellow tram climbing a Lisbon street — André Lergier
• Longtail boats lining a white-sand beach — Laura
• Three elephants walking across green grassland — David Heiling
• Colourful houses stacked on a cliff above the sea in Positano — Jordan Steranka
• Palacio de Bellas Artes in Mexico City — Samuel Reyes
• Koutoubia minaret with the snow-capped Atlas Mountains behind — Paul Macallan
• Stone ruins of Machu Picchu among green mountains — Eddie Kiszka

If you represent one of these projects and want a citation adjustment, email hello@travellerseed.com.