diff --git a/packages/docusaurus-plugin-content-docs/package.json b/packages/docusaurus-plugin-content-docs/package.json
index 8f8e6e21d9..54916f75b6 100644
--- a/packages/docusaurus-plugin-content-docs/package.json
+++ b/packages/docusaurus-plugin-content-docs/package.json
@@ -5,6 +5,7 @@
   "main": "lib/index.js",
   "exports": {
     "./client": "./lib/client/index.js",
+    "./server": "./lib/server/index.js",
     ".": "./lib/index.js"
   },
   "types": "src/plugin-content-docs.d.ts",
diff --git a/packages/docusaurus-plugin-content-docs/src/server/index.ts b/packages/docusaurus-plugin-content-docs/src/server/index.ts
new file mode 100644
index 0000000000..1be860cede
--- /dev/null
+++ b/packages/docusaurus-plugin-content-docs/src/server/index.ts
@@ -0,0 +1,19 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+// APIs available to Node.js
+export * from '../constants';
+
+export {
+  filterVersions,
+  getDefaultVersionBanner,
+  getVersionBadge,
+  getVersionBanner,
+  getVersionsFilePath,
+  readVersionsFile,
+  readVersionNames,
+} from '../versions';
diff --git a/packages/docusaurus-plugin-content-docs/src/versions.ts b/packages/docusaurus-plugin-content-docs/src/versions.ts
index fc76c649a2..18031cfa9c 100644
--- a/packages/docusaurus-plugin-content-docs/src/versions.ts
+++ b/packages/docusaurus-plugin-content-docs/src/versions.ts
@@ -85,7 +85,7 @@ function ensureValidVersionArray(
   versionArray.forEach(ensureValidVersionString);
 }
 
-async function readVersionsFile(
+export async function readVersionsFile(
   siteDir: string,
   pluginId: string,
 ): Promise<string[] | null> {
@@ -98,7 +98,7 @@ async function readVersionsFile(
   return null;
 }
 
-async function readVersionNames(
+export async function readVersionNames(
   siteDir: string,
   options: Pick<
     PluginOptions,
@@ -257,7 +257,7 @@ function getVersionEditUrls({
   };
 }
 
-function getDefaultVersionBanner({
+export function getDefaultVersionBanner({
   versionName,
   versionNames,
   lastVersionName,
@@ -280,7 +280,7 @@ function getDefaultVersionBanner({
   return 'unmaintained';
 }
 
-function getVersionBanner({
+export function getVersionBanner({
   versionName,
   versionNames,
   lastVersionName,
@@ -302,7 +302,7 @@ function getVersionBanner({
   });
 }
 
-function getVersionBadge({
+export function getVersionBadge({
   versionName,
   versionNames,
   options,
@@ -531,10 +531,10 @@ function checkVersionsOptions(
  * Note: we preserve the order in which versions are provided;
  * the order of the onlyIncludeVersions array does not matter
  */
-function filterVersions(
+export function filterVersions(
   versionNamesUnfiltered: string[],
   options: Pick<PluginOptions, 'onlyIncludeVersions'>,
-) {
+): string[] {
   if (options.onlyIncludeVersions) {
     return versionNamesUnfiltered.filter((name) =>
       (options.onlyIncludeVersions || []).includes(name),