Flathub

Mode: 🌐 Public · Domain: flathub.org

Search the Flathub Linux flatpak app registry and fetch full appstream metadata for any app. Flathub is the canonical flatpak distribution channel for Linux desktop applications.

Commands

Command	Description
opencli flathub search <query>	Search Flathub apps by keyword
opencli flathub app <appId>	Full Flathub appstream metadata for an app id

Usage Examples

# Keyword search
opencli flathub search firefox
opencli flathub search "image editor" --limit 10
opencli flathub search blender

# App detail (appId round-trips from search)
opencli flathub app org.mozilla.firefox
opencli flathub app org.gnome.Calculator
opencli flathub app org.blender.Blender

Output Columns

Command	Columns
search	rank, appId, name, summary, developer, license, isFreeLicense, mainCategories, installsLastMonth, updatedAt, url
app	appId, name, summary, developer, license, isFreeLicense, isEol, categories, keywords, latestVersion, latestReleaseDate, homepage, bugtracker, donation, url

The appId column round-trips between commands.

Options

search

Option	Description
query (positional)	Search keyword
--limit	Max apps (1–100, default: 25)

app

Option	Description
appId (positional)	AppStream id, reverse-DNS form (e.g. org.mozilla.firefox, org.gnome.Calculator)

Notes

• appId is the reverse-DNS AppStream id (org.mozilla.firefox), not the underscored cache id (org_mozilla_firefox) Flathub returns alongside it. We always emit the dotted form so the search → app round-trip works without translation.
• updatedAt normalisation: Flathub's /search endpoint emits updated_at as unix-seconds (integer); /appstream/<id> emits it as ISO date strings. The adapter normalises /search to ISO date (YYYY-MM-DD) so both surfaces look consistent.
• releases[].timestamp is a numeric string, not an int — quirk of the appstream layer. The adapter coerces both shapes when picking the latest release.
• isEol is true for end-of-life apps (no longer maintained).
• isFreeLicense uses Flathub's classification of project_license (e.g. MPL-2.0, GPL-3.0-or-later). Don't use this in lieu of reading the actual license; useful as a quick filter.
• installsLastMonth (search only) is Flathub's 30-day install count per app. Useful for popularity ranking; null when not yet aggregated.
• mainCategories is a single string in /search (e.g. 'network'); on /appstream/<id> the broader categories list is used ('Network, WebBrowser').
• No API key required. Flathub's API is public and unauthenticated; bursts → CommandExecutionError.
• Errors. Empty query / bad appId / bad limit → ArgumentError; unknown appId (HTTP 404) → EmptyResultError; transport / 429 / non-200 → CommandExecutionError.