@@ -0,0 +1,40 @@
+# VortexDB and AsyncVortexDB should expose the same public methods
+# with the same signatures
+import inspect
+
+from vortexdb.client import VortexDB
+from vortexdb.async_client import AsyncVortexDB
+
+
+def public_methods(cls):
+    return {
+        name: value
+        for name, value in vars(cls).items()
+        if callable(value) and not name.startswith("_")
+    }
+
+
+def test_sync_async_client_api_parity():
+    sync_methods = public_methods(VortexDB)
+    async_methods = public_methods(AsyncVortexDB)
+
+    sync_names = set(sync_methods)
+    async_names = set(async_methods)
+
+    assert sync_names == async_names, (
+        "Sync and async clients expose different methods. "
+        f"Only sync: {sorted(sync_names - async_names)}. "
+        f"Only async: {sorted(async_names - sync_names)}."
+    )
+
+    mismatches = [
+        f"  {name}: sync{inspect.signature(sync_methods[name])}"
+        f"  !=  async{inspect.signature(async_methods[name])}"
+        for name in sync_names
+        if inspect.signature(sync_methods[name])
+        != inspect.signature(async_methods[name])
+    ]
+
+    assert not mismatches, (
+        "Sync and async methods have mismatched signatures:\n" + "\n".join(mismatches)
+    )