diff --git a/hvpy/__init__.py b/hvpy/__init__.py
index 58f3ace..04fec18 100644
--- a/hvpy/__init__.py
+++ b/hvpy/__init__.py
@@ -1 +1,2 @@
+from .facade import *  # NOQA
 from .version import __version__
diff --git a/hvpy/api_groups/jpeg2000/get_jp2_image.py b/hvpy/api_groups/jpeg2000/get_jp2_image.py
index da7e210..8e43b6f 100644
--- a/hvpy/api_groups/jpeg2000/get_jp2_image.py
+++ b/hvpy/api_groups/jpeg2000/get_jp2_image.py
@@ -9,6 +9,7 @@ class getJP2ImageInputParameters(HvpyParameters):
     """
     Handles the input parameters of the getJP2Image API.
 
+    {Shared}
     Attributes
     ----------
     date : datetime.datetime
@@ -23,6 +24,7 @@ class getJP2ImageInputParameters(HvpyParameters):
     References
     ----------
     * `<https://api.helioviewer.org/docs/v2/api/api_groups/jpeg2000.html#getjp2image>`__
+    {Shared}
     """
 
     date: datetime
diff --git a/hvpy/api_groups/jpeg2000/tests/test_get_jp2_image.py b/hvpy/api_groups/jpeg2000/tests/test_get_jp2_image.py
index 602c63e..a17fbb1 100644
--- a/hvpy/api_groups/jpeg2000/tests/test_get_jp2_image.py
+++ b/hvpy/api_groups/jpeg2000/tests/test_get_jp2_image.py
@@ -1,69 +1,42 @@
 from datetime import datetime
 
 import pytest
-from pydantic import ValidationError
 
+from hvpy import getJP2Image
 from hvpy.api_groups.jpeg2000.get_jp2_image import getJP2ImageInputParameters
-from hvpy.core import execute_api_call
 
 
 def test_str_response():
-    date_obj = datetime(2022, 1, 1, 23, 59, 59)
-    params = {"date": date_obj, "sourceId": 14, "jpip": True, "json": False}
-    params = getJP2ImageInputParameters(**params)
-    response = execute_api_call(input_parameters=params)
+    response = getJP2Image(date=datetime(2022, 1, 1, 23, 59, 59), sourceId=14, jpip=True, json=False)
     assert isinstance(response, str)
     assert response.startswith("jpip://")
 
 
 def test_json_response():
-    date_obj = datetime(2022, 1, 1, 23, 59, 59)
-    params = {"date": date_obj, "sourceId": 14, "jpip": True, "json": True}
-    params = getJP2ImageInputParameters(**params)
-    response = execute_api_call(input_parameters=params)
+    response = getJP2Image(date=datetime(2022, 1, 1, 23, 59, 59), sourceId=14, jpip=True, json=True)
     assert isinstance(response, dict)
     assert "uri" in response
     assert response["uri"].startswith("jpip://")
 
 
 def test_raw_response():
-    date_obj = datetime(2022, 1, 1, 23, 59, 59)
-    params = {"date": date_obj, "sourceId": 14, "jpip": False, "json": False}
-    params = getJP2ImageInputParameters(**params)
-    response = execute_api_call(input_parameters=params)
+    response = getJP2Image(date=datetime(2022, 1, 1, 23, 59, 59), sourceId=14, jpip=False, json=False)
     assert isinstance(response, bytes)
 
 
 def test_raw_response_with_json():
-    date_obj = datetime(2022, 1, 1, 23, 59, 59)
-    params = {"date": date_obj, "sourceId": 14, "jpip": False, "json": True}
-    params = getJP2ImageInputParameters(**params)
-    response = execute_api_call(input_parameters=params)
+    response = getJP2Image(date=datetime(2022, 1, 1, 23, 59, 59), sourceId=14, jpip=False, json=True)
     assert isinstance(response, bytes)
 
 
 def test_default_response():
-    date_obj = datetime(2022, 1, 1, 23, 59, 59)
-    params = {"date": date_obj, "sourceId": 14}
-    params = getJP2ImageInputParameters(**params)
-    response = execute_api_call(input_parameters=params)
+    response = getJP2Image(date=datetime(2022, 1, 1, 23, 59, 59), sourceId=14)
     assert isinstance(response, bytes)
 
 
 def test_error_handling():
-    params = {"sourceId": 14, "jpip": True, "json": True}
-    with pytest.raises(ValidationError, match="getJP2ImageInputParameters\ndate\n  field required"):
-        getJP2ImageInputParameters(**params)
-
-
-def test_unknown_parameters():
-    date_obj = datetime(2022, 1, 1, 23, 59, 59)
-    params = {"date": date_obj, "sourceId": 14, "jpip": True, "json": True, "should_reject_this": True}
-    params = getJP2ImageInputParameters(**params)
-    response = execute_api_call(input_parameters=params)
-    assert isinstance(response, dict)
-    assert "uri" in response
-    assert response["uri"].startswith("jpip://")
+    with pytest.raises(TypeError, match="missing 1 required positional argument: 'date'"):
+        getJP2Image(sourceId=14, jpip=True, json=True)
 
 
 def test_url_property():
diff --git a/hvpy/facade.py b/hvpy/facade.py
new file mode 100644
index 0000000..d668b83
--- /dev/null
+++ b/hvpy/facade.py
@@ -0,0 +1,29 @@
+from typing import Any, Dict, Union
+from datetime import datetime
+
+from hvpy.core import execute_api_call
+from hvpy.parameters import *
+from hvpy.utils import add_shared_docstring
+
+__all__ = ["getJP2Image"]
+
+
+@add_shared_docstring(getJP2ImageInputParameters)
+def getJP2Image(
+    date: datetime,
+    sourceId: int,
+    jpip: bool = False,
+    json: bool = False,
+) -> Union[bytes, str, Dict[str, Any]]:
+    """
+    Retrieve a JP2000 image from the helioviewer.org API.
+
+    {Insert}
+    Examples
+    --------
+    >>> from hvpy import getJP2Image
+    >>> getJP2Image(date=datetime(2019,1,1), sourceId=1, jpip=True)
+    'jpip://helioviewer.org:8090/EIT/2013/08/07/195/2013_08_07__01_13_50_146__SOHO_EIT_EIT_195.jp2'
+    """
+    params = getJP2ImageInputParameters(date=date, sourceId=sourceId, jpip=jpip, json=json)
+    return execute_api_call(input_parameters=params)
diff --git a/hvpy/utils.py b/hvpy/utils.py
new file mode 100644
index 0000000..4c8f64c
--- /dev/null
+++ b/hvpy/utils.py
@@ -0,0 +1,14 @@
+from typing import Any, Callable
+
+__all__ = ["add_shared_docstring"]
+
+
+def add_shared_docstring(input_class) -> Callable[[Any], Any]:
+    def decorator(func):
+        if "{Shared}" in input_class.__doc__:
+            split_doc = input_class.__doc__.split("{Shared}")
+            func.__doc__ = func.__doc__.replace("{Insert}", split_doc[1])
+            input_class.__doc__ = input_class.__doc__.replace("{Shared}", "")
+        return func
+
+    return decorator