diff --git a/src/library-authoring/component-info/ComponentDeveloperInfo.tsx b/src/library-authoring/component-info/ComponentDeveloperInfo.tsx
new file mode 100644
index 0000000000..983b2034ea
--- /dev/null
+++ b/src/library-authoring/component-info/ComponentDeveloperInfo.tsx
@@ -0,0 +1,33 @@
+/* istanbul ignore file */
+/* eslint-disable import/prefer-default-export */
+// This file doesn't need test coverage nor i18n because it's only seen by devs
+import React from 'react';
+import { LoadingSpinner } from '../../generic/Loading';
+import { useXBlockOLX } from '../data/apiHooks';
+
+interface Props {
+  usageKey: string;
+}
+
+export const ComponentDeveloperInfo: React.FC<Props> = ({ usageKey }) => {
+  const { data: olx, isLoading: isOLXLoading } = useXBlockOLX(usageKey);
+  return (
+    <>
+      <hr />
+      <h3 className="h5">Developer Component Details</h3>
+      <p><small>(This panel is only visible in development builds.)</small></p>
+      <dl>
+        <dt>Usage key</dt>
+        <dd><code>{usageKey}</code></dd>
+        <dt>OLX</dt>
+        <dd>
+          {
+            olx ? <code className="micro">{olx}</code> : // eslint-disable-line
+            isOLXLoading ? <LoadingSpinner /> : // eslint-disable-line
+            <span>Error</span>
+          }
+        </dd>
+      </dl>
+    </>
+  );
+};
diff --git a/src/library-authoring/component-info/ComponentInfo.tsx b/src/library-authoring/component-info/ComponentInfo.tsx
index 56f1835c13..fa6db58296 100644
--- a/src/library-authoring/component-info/ComponentInfo.tsx
+++ b/src/library-authoring/component-info/ComponentInfo.tsx
@@ -10,6 +10,7 @@ import { Link } from 'react-router-dom';
 
 import { getEditUrl } from '../components/utils';
 import { ComponentMenu } from '../components';
+import { ComponentDeveloperInfo } from './ComponentDeveloperInfo';
 import messages from './messages';
 
 interface ComponentInfoProps {
@@ -52,6 +53,10 @@ const ComponentInfo = ({ usageKey } : ComponentInfoProps) => {
         </Tab>
         <Tab eventKey="details" title={intl.formatMessage(messages.detailsTabTitle)}>
           Details tab placeholder
+
+          {
+            (process.env.NODE_ENV === 'development' ? <ComponentDeveloperInfo usageKey={usageKey} /> : null)
+          }
         </Tab>
       </Tabs>
     </Stack>
diff --git a/src/library-authoring/component-info/ComponentInfoHeader.tsx b/src/library-authoring/component-info/ComponentInfoHeader.tsx
index 8f576fe1be..205acecfd4 100644
--- a/src/library-authoring/component-info/ComponentInfoHeader.tsx
+++ b/src/library-authoring/component-info/ComponentInfoHeader.tsx
@@ -24,9 +24,9 @@ const ComponentInfoHeader = ({ library, usageKey }: ComponentInfoHeaderProps) =>
 
   const {
     data: xblockFields,
-  } = useXBlockFields(library.id, usageKey);
+  } = useXBlockFields(usageKey);
 
-  const updateMutation = useUpdateXBlockFields(library.id, usageKey);
+  const updateMutation = useUpdateXBlockFields(usageKey);
   const { showToast } = useContext(ToastContext);
 
   const handleSaveDisplayName = useCallback(
diff --git a/src/library-authoring/data/api.ts b/src/library-authoring/data/api.ts
index 4c5a0b04c4..78ed9f134b 100644
--- a/src/library-authoring/data/api.ts
+++ b/src/library-authoring/data/api.ts
@@ -25,9 +25,13 @@ export const getCommitLibraryChangesUrl = (libraryId: string) => `${getApiBaseUr
  */
 export const getLibraryPasteClipboardUrl = (libraryId: string) => `${getApiBaseUrl()}/api/libraries/v2/${libraryId}/paste_clipboard/`;
 /**
-  * Get the URL for the xblock metadata API.
+  * Get the URL for the xblock fields/metadata API.
   */
 export const getXBlockFieldsApiUrl = (usageKey: string) => `${getApiBaseUrl()}/api/xblock/v2/xblocks/${usageKey}/fields/`;
+/**
+  * Get the URL for the xblock OLX API
+  */
+export const getXBlockOLXApiUrl = (usageKey: string) => `${getApiBaseUrl()}/api/libraries/v2/blocks/${usageKey}/olx/`;
 
 export interface ContentLibrary {
   id: string;
@@ -242,3 +246,11 @@ export async function updateXBlockFields(usageKey:string, xblockData: UpdateXBlo
   const client = getAuthenticatedHttpClient();
   await client.post(getXBlockFieldsApiUrl(usageKey), xblockData);
 }
+
+/**
+ * Fetch the OLX for the given XBlock.
+ */
+export async function getXBlockOLX(usageKey: string): Promise<string> {
+  const { data } = await getAuthenticatedHttpClient().get(getXBlockOLXApiUrl(usageKey));
+  return data.olx;
+}
diff --git a/src/library-authoring/data/apiHooks.ts b/src/library-authoring/data/apiHooks.ts
index f101bdd59c..1ffe488774 100644
--- a/src/library-authoring/data/apiHooks.ts
+++ b/src/library-authoring/data/apiHooks.ts
@@ -7,6 +7,7 @@ import {
   type QueryClient,
 } from '@tanstack/react-query';
 
+import { getLibraryId } from '../components/utils';
 import {
   type GetLibrariesV2CustomParams,
   type ContentLibrary,
@@ -22,6 +23,7 @@ import {
   libraryPasteClipboard,
   getXBlockFields,
   updateXBlockFields,
+  getXBlockOLX,
 } from './api';
 
 const libraryQueryPredicate = (query: Query, libraryId: string): boolean => {
@@ -56,12 +58,21 @@ export const libraryAuthoringQueryKeys = {
     'content',
     'libraryBlockTypes',
   ],
-  xblockFields: (contentLibraryId: string, usageKey: string) => [
+  xblockFields: (usageKey: string) => [
     ...libraryAuthoringQueryKeys.all,
-    ...libraryAuthoringQueryKeys.contentLibrary(contentLibraryId),
+    ...libraryAuthoringQueryKeys.contentLibrary(getLibraryId(usageKey)),
+    'content',
+    'xblock',
+    usageKey,
+    'fields',
+  ],
+  xblockOLX: (usageKey: string) => [
+    ...libraryAuthoringQueryKeys.all,
+    ...libraryAuthoringQueryKeys.contentLibrary(getLibraryId(usageKey)),
     'content',
-    'xblockFields',
+    'xblock',
     usageKey,
+    'OLX',
   ],
 };
 
@@ -77,7 +88,7 @@ export const libraryAuthoringQueryKeys = {
  * @param usageKey The usage ID of the XBlock ("lb:...")
  */
 export function invalidateComponentData(queryClient: QueryClient, contentLibraryId: string, usageKey: string) {
-  queryClient.invalidateQueries({ queryKey: libraryAuthoringQueryKeys.xblockFields(contentLibraryId, usageKey) });
+  queryClient.invalidateQueries({ queryKey: libraryAuthoringQueryKeys.xblockFields(usageKey) });
   queryClient.invalidateQueries({ predicate: (query) => libraryQueryPredicate(query, contentLibraryId) });
 }
 
@@ -188,20 +199,21 @@ export const useLibraryPasteClipboard = () => {
   });
 };
 
-export const useXBlockFields = (contentLibrayId: string, usageKey: string) => (
+export const useXBlockFields = (usageKey: string) => (
   useQuery({
-    queryKey: libraryAuthoringQueryKeys.xblockFields(contentLibrayId, usageKey),
+    queryKey: libraryAuthoringQueryKeys.xblockFields(usageKey),
     queryFn: () => getXBlockFields(usageKey),
     enabled: !!usageKey,
   })
 );
 
-export const useUpdateXBlockFields = (contentLibraryId: string, usageKey: string) => {
+export const useUpdateXBlockFields = (usageKey: string) => {
+  const contentLibraryId = getLibraryId(usageKey);
   const queryClient = useQueryClient();
   return useMutation({
     mutationFn: (data: UpdateXBlockFieldsRequest) => updateXBlockFields(usageKey, data),
     onMutate: async (data) => {
-      const queryKey = libraryAuthoringQueryKeys.xblockFields(contentLibraryId, usageKey);
+      const queryKey = libraryAuthoringQueryKeys.xblockFields(usageKey);
       const previousBlockData = queryClient.getQueriesData(queryKey)[0][1] as XBlockFields;
       const formatedData = camelCaseObject(data);
 
@@ -220,7 +232,7 @@ export const useUpdateXBlockFields = (contentLibraryId: string, usageKey: string
     },
     onError: (_err, _data, context) => {
       queryClient.setQueryData(
-        libraryAuthoringQueryKeys.xblockFields(contentLibraryId, usageKey),
+        libraryAuthoringQueryKeys.xblockFields(usageKey),
         context?.previousBlockData,
       );
     },
@@ -229,3 +241,11 @@ export const useUpdateXBlockFields = (contentLibraryId: string, usageKey: string
     },
   });
 };
+
+export const useXBlockOLX = (usageKey: string) => (
+  useQuery({
+    queryKey: libraryAuthoringQueryKeys.xblockOLX(usageKey),
+    queryFn: () => getXBlockOLX(usageKey),
+    enabled: !!usageKey,
+  })
+);