JSON API

Latest RStudio Builds

Most of the time, you’re probably wanting to just get a link to the latest RStudio build, from the current daily branch, for a particular platform. For that, you want this URL:

https://dailies.rstudio.com/rstudio/latest/index.json

This will return a JSON blob that tells you the current daily branch’s codename and version, and a list of products built for that branch. It looks something like this:

{
  "branch": "Globemaster Allium",
  "version": "2026.04",
  "products": {
    "electron": {
      "name": "RStudio Desktop",
      "platforms": {
        "windows": {
          "name": "Windows 11",
          "architecture": "x86_64",
          "link": "https://s3.amazonaws.com/rstudio-ide-build/electron/windows/RStudio-2026.04.0-516.exe",
          "filename": "RStudio-2026.04.0-516.exe",
          "sha256": "54d1cbf4a509ddbc87124f92ca4c0b2c2a981f2f89ecd2c988312496b42c728b",
          "channel": "Daily",
          "version": "2026.04.0+516",
          "size": 319794120,
          "commit": "b6e0cfc06de5308cf1a2d9696a2fe2116c010619",
          "date": "2026-04-14 18:45:23 +0000 UTC"
        },

    ...

So, for example, a very simple script to get a link to the latest Windows build might look like this:

$ curl -s https://dailies.rstudio.com/rstudio/latest/index.json | jq '.products.electron.platforms.windows.link'

"https://s3.amazonaws.com/rstudio-ide-build/electron/windows/RStudio-2026.04.0-516.exe"

Notes:

• This API returns the latest build for the daily branch only. If you want builds from other branches (stable, etc), see below.
• The version and code name will change when RStudio releases new software.
• Builds returned by this API, like all daily builds, are not guaranteed to be stable.

By Branch or Release

Sometimes what you need is the latest build for a particular branch; for example, if you have a stable version of RStudio but are tracking patches or updates to it.

A link to the latest builds for a given branch can be found on the bottom right hand side of the page when you’re looking at a branch’s builds; alternately, you can use the link above, replacing latest with the branch name or release version. For example, to get the latest Apple Blossom (2026.01) builds:

https://dailies.rstudio.com/rstudio/apple-blossom/index.json

You can also use the release version (YYYY.MM) instead of the branch name:

https://dailies.rstudio.com/rstudio/2026.01/index.json

Stable Builds

The above mechanisms will let you track the very latest dailies or new builds for a particular branch or release. If all you want is to grab the latest stable release of RStudio, use the downloads API exposed on rstudio.com:

https://www.rstudio.com/wp-content/downloads.json

Note that this API returns metadata for all RStudio products, and uses a different JSON structure than the one used for daily builds.