Firefox Add-ons API

Get Firefox Add-ons data as clean JSON with one key: 6 endpoints, 1 to 5 credits per call, the same response shape as every other platform.

What you get#

Onekey exposes Firefox Add-ons as 6 endpoints behind one API key: 1 endpoint return one record (data is an object) and 5 endpoints return a list (data is an array). Every answer uses the same envelope (success, data, metadata, error), the cost is reported in metadata.credits_charged, and fields are mapped onto the unified schema so the code you write for Firefox Add-ons also works for the rest of the developer platforms category.

Endpoints#

EndpointWhat it doesParametersCreditsStatus
addonFirefox add-on details by slug or id (AMO).slug*1stable
reviewsUser reviews of a Firefox add-on (AMO).slug*5stable
searchSearch Firefox add-ons (AMO).q*5stable
top_extensionsMost-used Firefox extensions (AMO).-5stable
top_themesMost-used Firefox themes (AMO).-5stable
versionsPublished versions of a Firefox add-on (AMO).slug*5stable

A * marks a required parameter. Each endpoint name links to its reference page with the full parameter table, caching window and a recorded response.

Make a request#

This calls amo.addon (1 credit, stable). Replace YOUR_API_KEY with your key; sign up, no card. 1,000 free credits cover the open-platform endpoints. Hard-to-reach platforms (X, TikTok, Instagram, Reddit, and others marked on their page) need a verified email and a purchased pack.

curl "https://api.onekey.dev/v1/amo/addon?slug=ublock-origin" \
  -H "x-api-key: YOUR_API_KEY"

Fields you get back#

These unified fields come back from Firefox Add-ons, with the same names as on every other platform. The count is how many of its 6 mapped endpoints return the field; a field the source lacks is null, never missing. 8 platform-specific fields (ext.<name>) come on top, documented on each endpoint page.

FieldTypeEndpoints
content.createdAtISO 8601 date6
package.versionstring6
entity.idstring5
entity.stats.ratingnumber5
content.updatedAtISO 8601 date4
entity.descriptionstring4
entity.namestring4
entity.slugstring4
entity.stats.ratingCountinteger4
entity.tagslist of strings4
entity.typestring4
entity.urlURL4
media.thumbnailUrlURL4
content.textstring2
author.usernamestring1
content.idstring1
media.urlURL1

The full schema is in Unified schema.

Pricing#

Firefox Add-ons calls cost 1 to 5 credits, flat per endpoint. Free when served from cache (0.2 credit for a cached response over 100 KB). Invalid, failed or not-found calls are not charged. See pricing for credit packs.