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://dl.dailies.rstudio.com/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://dl.dailies.rstudio.com/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. To find stable releases, use this URL:

https://dailies.rstudio.com/api/v1/release/index.json

It lists every supported release version, newest version first, with each version’s published builds, newest first. Because the order never changes when a patch ships, released[0] is always the current release and released[1] the one before it:

$ curl -s https://dailies.rstudio.com/api/v1/release/index.json | jq -r '.released[1].published[0].build'

2026.08.2+200.pro1

Each published build’s builds_url lists all of its installers, in the same products/platforms shape as the daily JSON above. For example, the Ubuntu 24 Workbench installer from the release before the current one:

$ curl -s "$(curl -s https://dailies.rstudio.com/api/v1/release/index.json | jq -r '.released[1].published[0].builds_url')" \
    | jq -r '.products.workbench.platforms["noble-amd64"].link'

.in_development[0].branch is the current daily branch, e.g. blue-mistflower, and .in_development[0].latest_build is its highest build version so far, with the same builds_url and docs_urls as a published build. .upcoming lists the planned release versions after it, with their codenames and expected release dates. Every endpoint and field is described in the generated API reference.