diff --git a/autogen.sh b/autogen.sh
index 5d26d18..ff9f226 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -28,9 +28,9 @@ for pvd in "${providers[@]}"; do
   fi
 done
 
-# generate the module classes
+# generate the module classes and docs
 for pvd in "${providers[@]}"; do
-  echo "generating the modules for provider '$pvd'"
+  echo "generating the modules & docs for provider '$pvd'"
   python -m scripts.generate "$pvd"
 done
 
diff --git a/config.py b/config.py
index dc0cca6..67f56a0 100644
--- a/config.py
+++ b/config.py
@@ -6,6 +6,7 @@
 
 APP_NAME = "diagrams"
 
+DIR_DOC_ROOT = "docs/nodes"
 DIR_APP_ROOT = "diagrams"
 DIR_RESOURCE = "resources"
 DIR_TEMPLATE = "templates"
@@ -29,6 +30,12 @@ FILE_PREFIXES = {
 }
 
 #########################
+#  Doc Auto Generation  #
+#########################
+
+TMPL_APIDOC = "apidoc.tmpl"
+
+#########################
 # Class Auto Generation #
 #########################
 
@@ -39,8 +46,9 @@ UPPER_WORDS = {
     "azure": ("ad", "b2c", "ai", "api", "cdn", "ddos", "dns", "fxt", "hana", "hd", "id", "sap", "sql", "vm"),
     "gcp": ("gcp", "ai", "api", "cdn", "dns", "gke", "gpu", "ml", "nat", "os", "sdk", "sql", "tpu", "vpn"),
     "k8s": (
-        "api", "cm", "ccm", "crb", "crd", "ds", "etcd", "hpa", "ns", "psp", "pv", "pvc", "rb", "rs", "sa", "sc", "sts",
-        "svc"),
+        "api", "cm", "ccm", "crb", "crd", "ds", "etcd", "hpa", "k8s", "ns", "psp", "pv", "pvc", "rb", "rs",
+        "sa", "sc", "sts", "svc",
+    ),
 }
 
 # TODO: check if the classname exists
diff --git a/scripts/__init__.py b/scripts/__init__.py
index 285441b..da78298 100644
--- a/scripts/__init__.py
+++ b/scripts/__init__.py
@@ -9,6 +9,11 @@ def app_root_dir(pvd: str) -> str:
     return os.path.join(basedir.parent, cfg.DIR_APP_ROOT, pvd)
 
 
+def doc_root_dir() -> str:
+    basedir = Path(os.path.abspath(os.path.dirname(__file__)))
+    return os.path.join(basedir.parent, cfg.DIR_DOC_ROOT)
+
+
 def resource_dir(pvd: str) -> str:
     basedir = Path(os.path.abspath(os.path.dirname(__file__)))
     return os.path.join(basedir.parent, cfg.DIR_RESOURCE, pvd)
diff --git a/scripts/generate.py b/scripts/generate.py
index 6c8cb70..dc28025 100644
--- a/scripts/generate.py
+++ b/scripts/generate.py
@@ -5,7 +5,7 @@ from typing import Iterable
 from jinja2 import Environment, FileSystemLoader, Template
 
 import config as cfg
-from . import app_root_dir, resource_dir, template_dir
+from . import app_root_dir, doc_root_dir, resource_dir, template_dir
 
 _usage = "Usage: generate.py <aws|gcp|azure>"
 
@@ -24,6 +24,8 @@ def gen_classes(pvd: str, typ: str, paths: Iterable[str]) -> str:
     """Generate all service node classes based on resources paths with class templates."""
     tmpl = load_tmpl(cfg.TMPL_MODULE)
 
+    # TODO: extract the gen class metas for sharing
+    # TODO: independent function for generating all pvd/typ/paths pairs
     def _gen_class_meta(path: str) -> dict:
         base = os.path.splitext(path)[0]
         name = "".join([up_or_title(pvd, s) for s in base.split("-")])
@@ -34,6 +36,24 @@ def gen_classes(pvd: str, typ: str, paths: Iterable[str]) -> str:
     return tmpl.render(pvd=pvd, typ=typ, metas=metas, aliases=aliases)
 
 
+def gen_apidoc(pvd: str, typ_paths: dict) -> str:
+    tmpl = load_tmpl(cfg.TMPL_APIDOC)
+
+    # TODO: remove
+    def _gen_class_name(path: str) -> str:
+        base = os.path.splitext(path)[0]
+        name = "".join([up_or_title(pvd, s) for s in base.split("-")])
+        return name
+
+    typ_classes = {}
+    for typ, paths in typ_paths.items():
+        typ_classes[typ] = []
+        for name in map(_gen_class_name, paths):
+            alias = cfg.ALIASES[pvd].get(typ, {}).get(name)
+            typ_classes[typ].append({'name': name, 'alias': alias})
+    return tmpl.render(pvd=pvd, typ_classes=typ_classes)
+
+
 def make_module(pvd: str, typ: str, classes: str) -> None:
     """Create a module file"""
     mod_path = os.path.join(app_root_dir(pvd), f"{typ}.py")
@@ -41,13 +61,21 @@ def make_module(pvd: str, typ: str, classes: str) -> None:
         f.write(classes)
 
 
+def make_apidoc(pvd: str, content: str) -> None:
+    """Create an api documentation file"""
+    mod_path = os.path.join(doc_root_dir(), f"{pvd}.md")
+    with open(mod_path, "w+") as f:
+        f.write(content)
+
+
 def generate(pvd: str) -> None:
     """Generates a service node classes."""
+    typ_paths = {}
     for root, _, files in os.walk(resource_dir(pvd)):
         # Extract the names and paths from resources.
         files.sort()
-        pngs = filter(lambda f: f.endswith(".png"), files)
-        paths = filter(lambda f: "rounded" not in f, pngs)
+        pngs = list(filter(lambda f: f.endswith(".png"), files))
+        paths = list(filter(lambda f: "rounded" not in f, pngs))
 
         # Skip the top-root directory.
         typ = os.path.basename(root)
@@ -57,6 +85,11 @@ def generate(pvd: str) -> None:
         classes = gen_classes(pvd, typ, paths)
         make_module(pvd, typ, classes)
 
+        typ_paths[typ] = paths
+    # Build API documentation
+    apidoc = gen_apidoc(pvd, typ_paths)
+    make_apidoc(pvd, apidoc)
+
 
 if __name__ == "__main__":
     pvd = sys.argv[1]
diff --git a/scripts/resource.py b/scripts/resource.py
index 386f277..d9f130b 100644
--- a/scripts/resource.py
+++ b/scripts/resource.py
@@ -52,7 +52,7 @@ def cleaner_k8s(f):
     f = f.replace("-256", "")
     for p in cfg.FILE_PREFIXES["k8s"]:
         if f.startswith(p):
-            f = f[len(p):]
+            f = f[len(p) :]
             break
     return f.lower()
 
diff --git a/templates/apidoc.tmpl b/templates/apidoc.tmpl
new file mode 100644
index 0000000..af10ceb
--- /dev/null
+++ b/templates/apidoc.tmpl
@@ -0,0 +1,11 @@
+---
+id: {{ pvd }}
+title: {{ pvd|up_or_title(pvd) }}
+---
+
+Node classes list of {{ pvd }} provider.
+{% for typ, classes in typ_classes.items() %}
+## {{ pvd }}.{{ typ }}
+{% for class in classes %}
+- **diagrams.{{ pvd }}.{{ typ }}.{{ class['name'] }}**{% if class['alias'] %}, **{{ class['alias'] }}** (alias){% endif %}{% endfor %}
+{% endfor %}