Linux desktop apps as Flatpaks — licence, runtime and SDK, content rating, publisher verification, plus install counts broken down by day and by country.
appnot measuredcollectionnot measuredstatsnot measured/v1/application:flathub/app1h cache1 paramchecking key…// npm i zpi-sdk
import { ZpiClient } from "zpi-sdk";
const client = new ZpiClient({ apiKey: "zpi_xxxxxxxxxxxxxxxxxxxxxxxx" });
const data = await client.run("application:flathub", "app", {
"id": "org.mozilla.firefox"
});
console.log(data);curl -X GET "https://api.zpi.web.id/v1/application:flathub/app?id=org.mozilla.firefox" \
-H "x-api-key: zpi_xxxxxxxxxxxxxxxxxxxxxxxx"/v1/application:flathub/appOne Flatpak's appstream record — licence, runtime and SDK, content rating, mimetypes, and whether Flathub verified the publisher.idstringrequiredcurl -X GET "https://api.zpi.web.id/v1/application:flathub/app?id=org.mozilla.firefox" \
-H "x-api-key: zpi_xxxxxxxxxxxxxxxxxxxxxxxx"{
"id": "org.mozilla.firefox",
"sdk": "org.freedesktop.Sdk/x86_64/25.08",
"url": "https://flathub.org/apps/org.mozilla.firefox",
"free": true,
"icon": "https://dl.flathub.org/media/icons/128x128/org.mozilla.firefox.png",
"name": "Firefox",
"type": "desktop",
"price": 0,
"bundle": "app/org.mozilla.firefox/x86_64/stable",
"source": "flathub",
"license": "MPL-2.0",
"runtime": "org.freedesktop.Platform/x86_64/25.08",
"summary": "Fast, Private & Safe Web Browser",
"keywords": [
"Browser",
"Explorer",
"Internet"
],
"verified": true,
"developer": {
"name": "Mozilla"
},
"endOfLife": false,
"mimetypes": [
"application/json",
"application/pdf",
"application/rdf+xml",
"application/rss+xml",
"application/x-xpinstall",
"application/xhtml+xml",
"application/xml",
"audio/flac"
],
"categories": [
"Network",
"WebBrowser"
],
"description": "When it comes to your life online, you have a choice: accept the factory settings or put your privacy first. When you choose Firefox as your default browser, you’re choosing to protect your data while supporting an independent tech company. Firefox is also the only major browser backed by a non-profit fighting to give you more openness, transparency and control of your life online. Join hundreds of millions of people who choose to protect what's important by choosing Firefox - a web browser designed to be fast, easy to use, customizable and private.",
"freeLicense": true,
"manifestUrl": "https://hg.mozilla.org/mozilla-central/file/tip/browser/installer/linux/app/flatpak",
"contentRating": "Early Childhood",
"mobileFriendly": false,
"contentRatingAge": 3,
"verificationMethod": "manual",
"contentRatingSystem": "ESRB"
}/v1/application:flathub/collectionOne of the store's curated lists: popular, recently added, recently updated, trending, verified, or mobile.collectionenumoptionalpagenumberoptionalcountnumberoptionalcurl -X GET "https://api.zpi.web.id/v1/application:flathub/collection?collection=popular&page=1&count=25" \
-H "x-api-key: zpi_xxxxxxxxxxxxxxxxxxxxxxxx"{
"page": 1,
"count": 10,
"items": [
{
"id": "org.vinegarhq.Sober",
"url": "https://flathub.org/apps/org.vinegarhq.Sober",
"free": true,
"icon": "https://dl.flathub.org/media/org/vinegarhq/Sober/53a35f34cedfbd06c961a0f84bfb076f/icons/128x128/org.vinegarhq.Sober.png",
"name": "Sober",
"type": "desktop-application",
"price": 0,
"source": "flathub",
"license": "LicenseRef-proprietary=https://sober.vinegarhq.org/notice.txt",
"summary": "Play, chat & explore on Roblox",
"updated": 1787001453,
"installs": 235549,
"verified": true,
"developer": {
"name": "VinegarHQ & Sober contributors"
}
},
{
"id": "org.mozilla.firefox",
"url": "https://flathub.org/apps/org.mozilla.firefox",
"free": true,
"icon": "https://dl.flathub.org/media/icons/128x128/org.mozilla.firefox.png",
"name": "Firefox",
"type": "desktop-application",
"price": 0,
"source": "flathub",
"license": "MPL-2.0",
"summary": "Fast, Private & Safe Web Browser",
"updated": 1786451271,
"installs": 197829,
"verified": true,
"developer": {
"name": "Mozilla"
}
},
{
"id": "com.discordapp.Discord",
"url": "https://flathub.org/apps/com.discordapp.Discord",
"free": true,
"icon": "https://dl.flathub.org/media/com/discordapp/Discord/cdbdd79ba164f5bb18fcd4788f93de44/icons/128x128/com.discordapp.Discord.png",
"name": "Discord",
"type": "desktop-application",
"price": 0,
"source": "flathub",
"license": "LicenseRef-proprietary",
"summary": "Talk, play, hang out",
"updated": 1786744896,
"installs": 190446,
"verified": true,
"developer": {
"name": "Discord Inc."
}
},
{
"id": "com.google.Chrome",
"url": "https://flathub.org/apps/com.google.Chrome",
"free": true,
"icon": "https://dl.flathub.org/media/com/google/Chrome/b385eea1b44c96758801ce1d76b3b110/icons/128x128/com.google.Chrome.png",
"name": "Google Chrome",
"type": "desktop-application",
"price": 0,
"source": "flathub",
"license": "LicenseRef-proprietary",
"summary": "The browser built to be yours",
"updated": 1786564851,
"installs": 182541,
"developer": {
"name": "Google"
}
},
{
"id": "com.brave.Browser",
"url": "https://flathub.org/apps/com.brave.Browser",
"free": true,
"icon": "https://dl.flathub.org/media/com/brave/Browser/94f633aaad7b8a1567a2f56b38c54fc2/icons/128x128/com.brave.Browser.png",
"name": "Brave",
"type": "desktop-application",
"price": 0,
"source": "flathub",
"license": "MPL-2.0",
"summary": "Fast Internet, AI, Adblock",
"updated": 1786555668,
"installs": 166797,
"verified": true,
"developer": {
"name": "Brave Software"
}
},
{
"id": "com.usebottles.bottles",
"url": "https://flathub.org/apps/com.usebottles.bottles",
"free": true,
"icon": "https://dl.flathub.org/media/com/usebottles/bottles/4a2b5d5a5471c40929c6e016c45b3da0/icons/128x128/com.usebottles.bottles.png",
"name": "Bottles",
"type": "desktop-application",
"price": 0,
"source": "flathub",
"license": "GPL-3.0-only",
"summary": "Run Windows software",
"updated": 1786907809,
"installs": 147427,
"verified": true,
"developer": {
"name": "The Bottles Contributors"
}
},
{
"id": "org.videolan.VLC",
"url": "https://flathub.org/apps/org.videolan.VLC",
"free": true,
"icon": "https://dl.flathub.org/media/org/videolan/VLC/34e7c2b6a026c5c290606225a84582d3/icons/128x128/org.videolan.VLC.png",
"name": "VLC",
"type": "desktop-application",
"price": 0,
"source": "flathub",
"license": "GPL-2.0+",
"summary": "VLC media player, the open-source multimedia player",
"updated": 1784336350,
"installs": 127046,
"developer": {
"name": "VideoLAN et al."
}
},
{
"id": "com.spotify.Client",
"url": "https://flathub.org/apps/com.spotify.Client",
"free": true,
"icon": "https://dl.flathub.org/media/com/spotify/Client/2be38d678bbcc0e04cec0c19c60a80fe/icons/128x128/com.spotify.Client.png",
"name": "Spotify",
"type": "desktop-application",
"price": 0,
"source": "flathub",
"license": "LicenseRef-proprietary=https://www.spotify.com/us/legal/end-user-agreement/",
"summary": "Online music streaming service",
"updated": 1786557109,
"installs": 124086,
"developer": {
"name": "Spotify"
}
}
],
"total": 3299,
"source": "flathub",
"hasMore": true,
"nextPage": 2,
"collection": "popular"
}/v1/application:flathub/statsInstall counts for one app — the running total, the last month and week, a daily series, and the full per-country breakdown the store page never renders.idstringrequireddaysnumberoptionalcurl -X GET "https://api.zpi.web.id/v1/application:flathub/stats?id=org.mozilla.firefox&days=30" \
-H "x-api-key: zpi_xxxxxxxxxxxxxxxxxxxxxxxx"{
"id": "org.mozilla.firefox",
"count": 14,
"daily": [
{
"date": "2026-08-03",
"installs": 6346
},
{
"date": "2026-08-04",
"installs": 6333
},
{
"date": "2026-08-05",
"installs": 6387
},
{
"date": "2026-08-06",
"installs": 6271
},
{
"date": "2026-08-07",
"installs": 6887
},
{
"date": "2026-08-08",
"installs": 7255
},
{
"date": "2026-08-09",
"installs": 7102
},
{
"date": "2026-08-10",
"installs": 6314
}
],
"source": "flathub",
"byCountry": [
{
"country": "US",
"installs": 1545775
},
{
"country": "DE",
"installs": 361790
},
{
"country": "GB",
"installs": 294332
},
{
"country": "BR",
"installs": 201969
},
{
"country": "RU",
"installs": 194713
},
{
"country": "CA",
"installs": 171227
},
{
"country": "FR",
"installs": 162500
},
{
"country": "ES",
"installs": 117814
}
],
"installsTotal": 12006593,
"installsLast7Days": 39885,
"installsLastMonth": 197829
}