diff --git a/cimgen/languages/json_ld/__init__.py b/cimgen/languages/json_ld/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/cimgen/languages/json_ld/lang_pack.py b/cimgen/languages/json_ld/lang_pack.py
new file mode 100644
index 0000000..31b0495
--- /dev/null
+++ b/cimgen/languages/json_ld/lang_pack.py
@@ -0,0 +1,89 @@
+from importlib.resources import files
+import os
+from typing import Callable
+import chevron
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+# This makes sure we have somewhere to write the generated files
+def setup(output_path: str, cgmes_profile_details: list[dict], cim_namespace: str) -> None:
+    if not os.path.exists(output_path):
+        os.makedirs(output_path)
+    else:
+        for filename in os.listdir(output_path):
+            os.remove(os.path.join(output_path, filename))
+
+
+def get_base_class() -> str:
+    return "Base"
+
+
+# called by chevron, text contains the label {{datatype}}, which is evaluated by the renderer (see class template)
+def _set_default(text: str, render: Callable[[str], str]) -> str:
+    result = render(text)
+
+    # the field {{datatype}} either contains the multiplicity of an attribute if it is a reference or otherwise the
+    # datatype of the attribute. If no datatype is set and there is also no multiplicity entry for an attribute, the
+    # default value is set to None. The multiplicity is set for all attributes, but the datatype is only set for basic
+    # data types. If the data type entry for an attribute is missing, the attribute contains a reference and therefore
+    # the default value is either None or [] depending on the multiplicity. See also write_python_files
+    if result in ["M:1", "M:0..1", "M:1..1", ""]:
+        return "None"
+    elif result in ["M:0..n", "M:1..n"] or "M:" in result:
+        return "[]"
+
+    result = result.split("#")[1]
+    if result in ["integer", "Integer"]:
+        return "0"
+    elif result in ["String", "DateTime", "Date"]:
+        return "''"
+    elif result == "Boolean":
+        return "False"
+    else:
+        # everything else should be a float
+        return "0.0"
+
+
+# These are the template files that are used to generate the class files.
+class_template_file = {"filename": "json_ld_template.mustache", "ext": ".json"}
+
+
+def run_template(output_path: str, class_details: dict) -> None:
+    class_file = os.path.join(output_path, class_details["class_name"] + class_template_file["ext"])
+    with open(class_file, "w") as file:
+        class_details["set_default"] = _set_default
+        templates = files("cimgen.languages.json_ld.templates")
+        with templates.joinpath(class_template_file["filename"]).open(encoding="utf-8") as f:
+            args = {
+                "data": class_details,
+                "template": f,
+            }
+            output = chevron.render(**args)
+            file.write(output)
+
+
+def location(version):
+    return "cimpy." + version + ".Base"
+
+
+base = {"base_class": "Base", "class_location": location}
+
+template_files = [{"filename": "json_ld_template.mustache", "ext": ".json"}]
+
+
+def get_class_location(class_name, class_map, version):
+    pass
+
+
+def set_enum_classes(new_enum_classes):
+    return
+
+
+def set_float_classes(new_float_classes):
+    return
+
+
+def resolve_headers(path: str, version: str) -> None:  # NOSONAR
+    pass
diff --git a/cimgen/languages/json_ld/templates/json_ld_template.mustache b/cimgen/languages/json_ld/templates/json_ld_template.mustache
new file mode 100644
index 0000000..860f233
--- /dev/null
+++ b/cimgen/languages/json_ld/templates/json_ld_template.mustache
@@ -0,0 +1,18 @@
+{
+    "$schema": "http://json-schema.org/schema#",
+    "$id": "schema:{{class_name}}",
+    "$ref": "schema:{{subclass_of}}",
+    "$schemaVersion": "0.0.1",
+    "modelTags": "",
+    "title": "{{class_name}}",
+    "description": "{{class_comment}}",
+    "type": "object",
+    "properties": {
+{{#attributes}}
+        "{{label}}": {
+            "description": "{{comment}} Default: {{#set_default}}{{datatype}}{{/set_default}}",
+            "type": "{{datatype}}"
+        },
+{{/attributes}}
+    }
+}