diff --git a/mesmerize_core/caiman_extensions/_pynapple.py b/mesmerize_core/caiman_extensions/_pynapple.py
new file mode 100644
index 0000000..5ceaae8
--- /dev/null
+++ b/mesmerize_core/caiman_extensions/_pynapple.py
@@ -0,0 +1,37 @@
+import numpy as np
+import pandas as pd
+import pynapple as nap
+from caiman.source_extraction.cnmf import CNMF
+
+
+from ._utils import validate
+from .cnmf import CNMFExtensions
+
+
+@pd.api.extensions.register_series_accessor("nap")
+class PynappleExtension:
+    def __init__(self, series: pd.Series):
+        self._series = series
+
+    @validate("cnmf")
+    def get_tsd_frame(self):
+        cnmf_obj: CNMF = self._series.cnmf.get_output()
+
+        framerate = cnmf_obj.params.data["fr"]
+
+        n_frames = cnmf_obj.estimates.C.shape[1]
+
+        duration_seconds = n_frames / framerate
+
+        timestamps = np.linspace(0, duration_seconds, n_frames)
+
+        n_components = cnmf_obj.estimates.C.shape[0]
+
+        tsdframe = nap.TsdFrame(
+            t=timestamps,
+            d=cnmf_obj.estimates.C.T,
+            time_units="s",
+            columns=list(map(str, range(n_components)))
+        )
+
+        return tsdframe