flathub.app

stable Standard

Flathub app details by application id.

GET /v1/flathub/app

What you get#

One Flathub record in Onekey's unified shape, in data. If the record does not exist you get a 404 not_found and are not charged.

What it costs#

Standard · 1 credit for a fresh fetch, charged only when it succeeds.
Free when served from cache (0.2 credit for a cached response over 100 KB).
Free if the request is invalid (never charged) or the source fails or reports not found (refunded).

Parameters#

Name	Type	Required	Default	What it is	Constraints
`app_id`	string	yes	(required)	Flathub application id (reverse DNS)	max 151 chars; must match `[A-Za-z0-9][A-Za-z0-9_.-]{2,150}`; trimmed

Request#

curl "https://api.onekey.dev/v1/flathub/app?app_id=org.mozilla.firefox" \
  -H "x-api-key: YOUR_API_KEY"

Try it

Add your key to run this call right here. No key? Get one free. The key stays in this tab.

Recorded response#

A real Flathub response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": {
    "entity": {
      "id": "org.mozilla.firefox",
      "name": "Firefox",
      "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.",
      "url": "https://www.mozilla.org/firefox/",
      "tags": [
        "Network",
        "WebBrowser"
      ]
    },
    "ext": {
      "entitySummary": "Fast, Private & Safe Web Browser",
      "developer": "Mozilla"
    },
    "package": {
      "license": "MPL-2.0",
      "version": "156.0.1"
    },
    "media": {
      "thumbnailUrl": "https://dl.flathub.org/media/icons/128x128/org.mozilla.firefox.png"
    }
  },
  "metadata": {
    "platform": "flathub",
    "endpoint": "app",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 1,
    "request_id": "7f3a9c2e5b1d4c8fa2e6d0b9c4f18e37"
  },
  "error": null
}

Field mapping#

How this endpoint's source fields become Onekey's unified schema. Fields the source lacks come back as null.

Source path	Onekey field	Transform
`id`	`entity.id`	-
`name`	`entity.name`	-
`summary`	`ext.entitySummary`	-
`description`	`entity.description`	`stripHtml`
`developer_name`	`ext.developer`	-
`project_license`	`package.license`	-
`urls.homepage`	`entity.url`	`safeUrl`
`releases.0.version`	`package.version`	-
`categories`	`entity.tags`	-
`icon`	`media.thumbnailUrl`	`safeUrl`

Caching and freshness#

Fresh for about 1 hour. Repeat calls in that window are served from cache and are free.
Between 1 hour and 1 day the cached copy is still served instantly and marked stale: true while Onekey refreshes it in the background.
If the source is down when a refresh is needed, the last copy can be served for up to 1 day more (marked stale).
A "not found" is remembered for 5 minutes and is free.
The cache is shared across all customers, which is what keeps repeat calls cheap.

What can go wrong#

Status	Code	What to do
401	`unauthorized`	Check the `x-api-key` header.
402	`insufficient_credits`	Add credits; your balance must cover the price.
404	`not_found`	That record does not exist. Free; do not retry.
422	`invalid_params`	Fix the parameters using the table above. Free.
429	`rate_limited`	Wait `Retry-After` seconds, then retry.
502	`upstream_error`	The source failed. Refunded; retry with backoff.

See Errors for the full list and retry guidance.

Status: stable (verified against the live source).