Open VSX API

Get Open VSX data as clean JSON with one key: 2 endpoints, 1 to 5 credits per call, the same response shape as every other platform.

What you get#

Onekey exposes Open VSX as 2 endpoints behind one API key: 1 endpoint return one record (data is an object) and 1 endpoint 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 Open VSX also works for the rest of the developer platforms category.

Endpoints#

EndpointWhat it doesParametersCreditsStatus
extensionOpen VSX extension by namespace and name.namespace*, name*1stable
searchSearch Open VSX extensions.q*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 openvsx.extension (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/openvsx/extension?namespace=redhat&name=java" \
  -H "x-api-key: YOUR_API_KEY"

Fields you get back#

These unified fields come back from Open VSX, with the same names as on every other platform. The count is how many of its 2 mapped endpoints return the field; a field the source lacks is null, never missing. 2 platform-specific fields (ext.<name>) come on top, documented on each endpoint page.

FieldTypeEndpoints
content.updatedAtISO 8601 date2
entity.descriptionstring2
entity.idstring2
entity.namestring2
entity.stats.downloadsinteger2
entity.stats.ratingnumber2
entity.stats.ratingCountinteger2
media.thumbnailUrlURL2
package.namespacestring2
package.versionstring2
entity.urlURL1
package.licensestring1

The full schema is in Unified schema.

Pricing#

Open VSX 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.