diff --git a/website/src/pages/[organism]/search-single.ts b/website/src/pages/[organism]/search-single.ts
new file mode 100644
index 0000000000..ad53bfe29d
--- /dev/null
+++ b/website/src/pages/[organism]/search-single.ts
@@ -0,0 +1,25 @@
+import type { APIRoute } from 'astro';
+
+import { LapisClient } from '../../services/lapisClient.ts';
+
+export const GET: APIRoute = async ({ params, request, redirect }) => {
+    const url = new URL(request.url);
+    const submissionId = url.searchParams.get('submissionId');
+    const organism = params.organism!;
+
+    if (submissionId == null) {
+        return new Response('submissionId parameter is required', { status: 400 });
+    }
+    const client = LapisClient.createForOrganism(organism);
+    const responseData = await client.call('details', {
+        submissionId,
+        versionStatus: 'LATEST_VERSION',
+        isRevocation: "false",
+        fields: ['accessionVersion']
+    });
+    const accessionVersions = responseData.unwrapOr({data: []}).data.map(d => d.accessionVersion);
+    if (accessionVersions.length === 1) {
+        return redirect(`/seq/${accessionVersions[0]}`)
+    }
+    return redirect(`/${params.organism}/search?submissionId=${encodeURIComponent(submissionId)}`);
+};