diff --git a/.vscode/launch.json b/.vscode/launch.json
index b0ab7529d..357c14ded 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -9,11 +9,27 @@
         {
             "type": "node",
             "request": "launch",
-            "name": "Launch Program",
+            "name": "Debug with Mongo / S3 / Redis",
             "program": "${workspaceFolder}/packages/h5p-examples/build/express.js",
             "runtimeArgs": ["-r", "source-map-support/register"],
             "env": {
-                "DEBUG": "h5p*"
+                "DEBUG": "h5p*",
+                "LOG_LEVEL": "debug",
+                "DOTENV_CONFIG_PATH": "${workspaceFolder}/packages/h5p-examples/mongo+s3+redis.env"
+            },
+            "outputCapture": "std",
+            "console": "integratedTerminal"
+        },
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Debug with pure mongo library storage + mongo/s3 content storage",
+            "program": "${workspaceFolder}/packages/h5p-examples/build/express.js",
+            "runtimeArgs": ["-r", "source-map-support/register"],
+            "env": {
+                "DEBUG": "h5p*",
+                "LOG_LEVEL": "debug",
+                "DOTENV_CONFIG_PATH": "${workspaceFolder}/packages/h5p-examples/mongo+mongos3.env"
             },
             "outputCapture": "std",
             "console": "integratedTerminal"
diff --git a/packages/h5p-mongos3/src/MongoLibraryStorage.ts b/packages/h5p-mongos3/src/MongoLibraryStorage.ts
index c7682b123..cee92a79a 100644
--- a/packages/h5p-mongos3/src/MongoLibraryStorage.ts
+++ b/packages/h5p-mongos3/src/MongoLibraryStorage.ts
@@ -402,6 +402,13 @@ export default class MongoLibraryStorage implements ILibraryStorage {
         file: string
     ): Promise<IFileStats> {
         this.validateFilename(file);
+
+        // The metadata is not saved as a file
+        if (file === 'library.json') {
+            const metadata = JSON.stringify(await this.getMetadata(library));
+            return { size: metadata.length, birthtime: new Date() };
+        }
+
         let fileStats: any;
         try {
             fileStats = await this.mongodb.findOne(
diff --git a/packages/h5p-mongos3/src/MongoS3LibraryStorage.ts b/packages/h5p-mongos3/src/MongoS3LibraryStorage.ts
index 8461a746c..d06a94476 100644
--- a/packages/h5p-mongos3/src/MongoS3LibraryStorage.ts
+++ b/packages/h5p-mongos3/src/MongoS3LibraryStorage.ts
@@ -431,6 +431,12 @@ export default class MongoS3LibraryStorage implements ILibraryStorage {
     ): Promise<IFileStats> {
         validateFilename(file, this.options?.invalidCharactersRegexp);
 
+        // As the metadata is not S3, we need to get it from MongoDB.
+        if (file === 'library.json') {
+            const metadata = JSON.stringify(await this.getMetadata(library));
+            return { size: metadata.length, birthtime: new Date() };
+        }
+
         try {
             const head = await this.s3
                 .headObject({
diff --git a/packages/h5p-mongos3/test/MongoLibraryStorage.test.ts b/packages/h5p-mongos3/test/MongoLibraryStorage.test.ts
index d7ea85df8..2a4c366dd 100644
--- a/packages/h5p-mongos3/test/MongoLibraryStorage.test.ts
+++ b/packages/h5p-mongos3/test/MongoLibraryStorage.test.ts
@@ -6,7 +6,7 @@ import { Db, MongoClient, Collection, ObjectId } from 'mongodb';
 import fsExtra from 'fs-extra';
 import path from 'path';
 
-import { ILibraryMetadata } from '@lumieducation/h5p-server';
+import { ILibraryMetadata, streamToString } from '@lumieducation/h5p-server';
 import MongoLibraryStorage from '../src/MongoLibraryStorage';
 
 describe('MongoS3LibraryStorage', () => {
@@ -199,6 +199,33 @@ describe('MongoS3LibraryStorage', () => {
         ).rejects.toThrowError('mongo-library-storage:library-not-found');
     });
 
+    it('gets the metadata and its stats as a file (simulates GET on library.json) ', async () => {
+        const metadata = await fsExtra.readJSON(
+            `${__dirname}/../../../test/data/libraries/H5P.Example1-1.1/library.json`
+        );
+
+        await storage.addLibrary(metadata, false);
+        const retrievedStats = await storage.getFileStats(
+            {
+                machineName: 'H5P.Example1',
+                majorVersion: 1,
+                minorVersion: 1
+            },
+            'library.json'
+        );
+        const retrievedStream = await storage.getFileStream(
+            {
+                machineName: 'H5P.Example1',
+                majorVersion: 1,
+                minorVersion: 1
+            },
+            'library.json'
+        );
+        const retrievedMetadata = await streamToString(retrievedStream);
+        expect(JSON.parse(retrievedMetadata)).toMatchObject(metadata);
+        expect(retrievedMetadata.length).toEqual(retrievedStats.size);
+    });
+
     it('update additional metadata', async () => {
         const metadata = await fsExtra.readJSON(
             `${__dirname}/../../../test/data/libraries/H5P.Example1-1.1/library.json`
diff --git a/packages/h5p-mongos3/test/MongoS3LibraryStorage.test.ts b/packages/h5p-mongos3/test/MongoS3LibraryStorage.test.ts
index d40214afe..30784182f 100644
--- a/packages/h5p-mongos3/test/MongoS3LibraryStorage.test.ts
+++ b/packages/h5p-mongos3/test/MongoS3LibraryStorage.test.ts
@@ -7,7 +7,7 @@ import { Db, Collection, MongoClient, ObjectId } from 'mongodb';
 import fsExtra from 'fs-extra';
 import path from 'path';
 
-import { ILibraryMetadata } from '@lumieducation/h5p-server';
+import { ILibraryMetadata, streamToString } from '@lumieducation/h5p-server';
 import MongoS3LibraryStorage from '../src/MongoS3LibraryStorage';
 import initS3 from '../src/initS3';
 import { emptyAndDeleteBucket } from './s3-utils';
@@ -205,6 +205,33 @@ describe('MongoS3LibraryStorage', () => {
         });
     });
 
+    it('gets the metadata and its stats as a file (simulates GET on library.json) ', async () => {
+        const metadata = await fsExtra.readJSON(
+            `${__dirname}/../../../test/data/libraries/H5P.Example1-1.1/library.json`
+        );
+
+        await storage.addLibrary(metadata, false);
+        const retrievedStats = await storage.getFileStats(
+            {
+                machineName: 'H5P.Example1',
+                majorVersion: 1,
+                minorVersion: 1
+            },
+            'library.json'
+        );
+        const retrievedStream = await storage.getFileStream(
+            {
+                machineName: 'H5P.Example1',
+                majorVersion: 1,
+                minorVersion: 1
+            },
+            'library.json'
+        );
+        const retrievedMetadata = await streamToString(retrievedStream);
+        expect(JSON.parse(retrievedMetadata)).toMatchObject(metadata);
+        expect(retrievedMetadata.length).toEqual(retrievedStats.size);
+    });
+
     it('update additional metadata', async () => {
         const metadata = await fsExtra.readJSON(
             `${__dirname}/../../../test/data/libraries/H5P.Example1-1.1/library.json`