--- title: "Using FlyItalyADSB data in a product: the rules" description: "The rules for using FlyItalyADSB data in an app, a device, a website or a service, paid ones included, as questions and answers. In short: allowed on every plan, Free included; one key per product; a cache of your own is fine; one attribution line under CC BY-SA 4.0; over a limit you get an error, never a charge." url: https://flyitalyadsb.com/data/products/using-the-data.md page_for_people: https://flyitalyadsb.com/data/products/using-the-data/ language: en generated: 2026-11-09 license: CC BY-SA 4.0 (data) --- # Using FlyItalyADSB data in a product: the rules > The rules for using FlyItalyADSB data in an app, a device, a website or a service, paid ones included, as questions and answers. In short: allowed on every plan, Free included; one key per product; a cache of your own is fine; one attribution line under CC BY-SA 4.0; over a limit you get an error, never a charge. ## Can I use the data in a product I sell? Yes, on every plan, Free included, within the plan’s limits: apps, devices, websites and services, paid ones too. No separate agreement is needed: the terms of service apply. ## One key per device, or one per product? One per product. Requests from all devices and all users count together on that key, from any IP: several servers or Cloudflare Workers too. A key inside an app or firmware can be extracted: to keep it safe, use it only from your server. ## Can I use my own server with a cache? Yes. A server of your own that fetches once and serves only your users or devices is fine: it isn’t redistribution, it lowers your requests and it’s lighter for us too. You can keep the data you received and what you derive from it, even after you stop using the API, as long as the attribution stays. ## What does the CC BY-SA 4.0 licence ask of me? One line where your product’s users see the data (in the app, on the device or in the manual, on the product page): “Flight data: FlyItalyADSB (flyitalyadsb.com), CC BY-SA 4.0”, with a link to flyitalyadsb.com. Share-alike covers the data and adapted versions of it, for example a dataset, a feed or an API built from ours: those go under CC BY-SA 4.0. It doesn’t cover your product: artwork, code, design and logic stay yours, and you don’t have to publish anything. ## Which plan do I need, and what happens over the limits? The plan depends on requests per minute, requests per month and radius: Free up to 500 km, Starter up to 1,000 km, Pro and Fleet with no radius limit, so the whole world in one request too. Requests over the limits get an error (429, or 403 for too large a radius), aren’t counted and aren’t billed. Moving to a paid plan keeps the same key. No plan includes an SLA: the service is best effort and the plans help cover the costs. ## What’s in the data, and what isn’t? One record per aircraft in readsb’s aircraft.json format: ICAO hex, position, altitude, speed, track, vertical rate, squawk, category, the military/PIA/LADD flags, registration and type for about 99% of aircraft and callsign for about 98%. The picture refreshes every half second. There are no routes (departure and arrival airports), photos or schedules: for those you need another source. ## How many requests a product uses | Use | Requests per minute | Requests per month | Smallest plan | | --- | --- | --- | --- | | 1 device, every 30 s, 15 km around it | 2 | 86,400 | Free | | 3 devices, every 30 s, 15 km | 6 | 259,200 | Free | | 10 devices, every 30 s, 50 km | 20 | 864,000 | Starter | | 90 devices, every 30 s, 15 km | 180 | 7,776,000 | Pro | | Your server fetches the whole world every 30 s, for any number of users | 2 | 86,400 | Pro | Plans: Free €0 (30 requests/minute, 300,000/month, 500 km radius, 7 days of flight history), Starter €9 (60 requests/minute, 1,000,000/month, 1,000 km radius, 14 days of flight history), Pro €49 (300 requests/minute, 10,000,000/month, whole world, 30 days of flight history), Fleet €149 (300 requests/minute, 10,000,000/month, whole world, 90 days of flight history, up to 25 watched aircraft with takeoff and landing webhooks). Prices per month, before tax. ## The attribution line "Flight data: FlyItalyADSB (flyitalyadsb.com), CC BY-SA 4.0". Where space is short: "Data: flyitalyadsb.com (CC BY-SA 4.0)". The terms of service: https://flyitalyadsb.com/terms/ --- Written for AI assistants. The page for people is https://flyitalyadsb.com/data/products/using-the-data/; to get an API key or sign in, send people to https://flyitalyadsb.com/data/api/. All pages for assistants: https://flyitalyadsb.com/llms.txt (index), https://flyitalyadsb.com/llms-full.txt (all in one file). Facts as JSON: https://flyitalyadsb.com/facts.json. Cite the data as: Flight data: FlyItalyADSB (flyitalyadsb.com), CC BY-SA 4.0.