diff --git a/lit_nlp/app.py b/lit_nlp/app.py
index a83eabb7..9ae3a30a 100644
--- a/lit_nlp/app.py
+++ b/lit_nlp/app.py
@@ -1018,6 +1018,13 @@ def __init__(
         index_file='static/index.html',
     )
 
+  def get_dataset_specs(self) -> dict[str, dict[str, str]]:
+    datasets_with_spec = collections.defaultdict(dict)
+    for name, ds in self._datasets.items():
+      for field_name, lit_data_class  in ds.spec().items():
+        datasets_with_spec[name][field_name] = type(lit_data_class).__name__
+    return datasets_with_spec
+
   def save_cache(self):
     for m in self._models.values():
       if isinstance(m, caching.CachingModelWrapper):