diff --git a/docs/conf.py b/docs/conf.py
index 4aefe2c..61a7cce 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -24,9 +24,13 @@ extensions = [
     "sphinx.ext.autosummary",
     "sphinx.ext.intersphinx",
     "sphinx.ext.autosectionlabel",
+    # "sphinx_immaterial",
 ]
+# html_theme = "sphinx_immaterial"
+html_theme_options = {}
 
-autodoc_typehints = "signature"
+
+# autodoc_typehints = "signature"
 
 templates_path = ["_templates"]
 exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
diff --git a/neon_client/client.py b/neon_client/client.py
index 961cfa7..5aa0452 100644
--- a/neon_client/client.py
+++ b/neon_client/client.py
@@ -7,7 +7,7 @@ import requests
 
 from . import schema
 from .utils import compact_mapping, to_iso8601
-from .exceptions import NeonAPIException
+from .exceptions import NeonAPIError
 
 
 __VERSION__ = "0.1.0"
@@ -20,6 +20,10 @@ ENABLE_PYDANTIC = True
 def returns_model(model, is_array=False):
     """Decorator that returns a Pydantic dataclass.
 
+    :param model: The Pydantic dataclass to return.
+    :param is_array: Whether the return value is an array (default is False).
+    :return: A Pydantic dataclass.
+
     If Pydantic is not enabled, the original return value is returned.
     """
 
@@ -40,7 +44,11 @@ def returns_model(model, is_array=False):
 
 
 def returns_subkey(key):
-    """Decorator that returns a subkey."""
+    """Decorator that returns a subkey.
+
+    :param key: The key to return.
+    :return: The value of the key in the return value.
+    """
 
     def decorator(func):
         @wraps(func)
@@ -57,7 +65,11 @@ def returns_subkey(key):
 
 class NeonAPI:
     def __init__(self, api_key: str, *, base_url: str = None):
-        """A Neon API client."""
+        """A Neon API client.
+
+        :param api_key: The API key to use for authentication.
+        :param base_url: The base URL of the Neon API (default is https://console.neon.tech/api/v2/).
+        """
 
         # Set the base URL.
         if not base_url:
@@ -80,7 +92,13 @@ class NeonAPI:
         path: str,
         **kwargs,
     ):
-        """Send an HTTP request to the specified API path using the specified method."""
+        """Send an HTTP request to the specified API path using the specified method.
+
+        :param method: The HTTP method to use (e.g., "GET", "POST", "PUT", "DELETE").
+        :param path: The API path to send the request to.
+        :param kwargs: Additional keyword arguments to pass to the requests.Session.request method.
+        :return: The JSON response from the server.
+        """
 
         # Set HTTP headers for outgoing requests.
         headers = kwargs.pop("headers", {})
@@ -98,7 +116,7 @@ class NeonAPI:
         try:
             r.raise_for_status()
         except requests.exceptions.HTTPError:
-            raise NeonAPIException(r.text)
+            raise NeonAPIError(r.text)
 
         return r.json()
 
@@ -126,6 +144,8 @@ class NeonAPI:
     def api_keys(self) -> t.List[t.Dict[str, t.Any]]:
         """Get a list of API keys.
 
+        :return: A dataclass representing the API key.
+
         More info: https://api-docs.neon.tech/reference/listapikeys
         """
 
@@ -135,6 +155,9 @@ class NeonAPI:
     def api_key_create(self, **json: dict) -> t.Dict[str, t.Any]:
         """Create a new API key.
 
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the API key.
+
         Example usage:
 
         ```python
@@ -184,6 +207,9 @@ class NeonAPI:
     def project(self, project_id: str) -> t.Dict[str, t.Any]:
         """Get a project.
 
+        :param project_id: The ID of the project.
+        :return: A dataclass representing the project.
+
         More info: https://api-docs.neon.tech/reference/getproject
         """
 
@@ -195,6 +221,9 @@ class NeonAPI:
     def project_create(self, **json: dict) -> t.Dict[str, t.Any]:
         """Create a new project. Accepts all keyword arguments for json body.
 
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the project.
+
         More info: https://api-docs.neon.tech/reference/createproject
         """
 
@@ -204,6 +233,10 @@ class NeonAPI:
     def project_update(self, project_id: str, **json: dict) -> t.Dict[str, t.Any]:
         """Updates a project. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the project.
+
         More info: https://api-docs.neon.tech/reference/updateproject"""
 
         return self._request("PATCH", f"projects/{ project_id }", json=json)
@@ -212,6 +245,9 @@ class NeonAPI:
     def project_delete(self, project_id: str) -> t.Dict[str, t.Any]:
         """Delete a project.
 
+        :param project_id: The ID of the project.
+        :return: A dataclass representing the project.
+
         More info: https://api-docs.neon.tech/reference/deleteproject
         """
 
@@ -221,6 +257,9 @@ class NeonAPI:
     def project_permissions(self, project_id: str) -> t.Dict[str, t.Any]:
         """Get a project permissions.
 
+        :param project_id: The ID of the project.
+        :return: A dataclass representing the project permissions.
+
         More info: https://api-docs.neon.tech/reference/listprojectpermissions
         """
         return self._request("GET", f"projects/{ project_id }/permissions")
@@ -231,6 +270,10 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Update a project permissions. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the project permissions.
+
         More info: https://api-docs.neon.tech/reference/grantpermissiontoproject
         """
         return self._request("POST", f"projects/{ project_id }/permissions", json=json)
@@ -241,6 +284,10 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Update a project permissions. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the project permissions.
+
         More info: https://api-docs.neon.tech/reference/revokepermissionfromproject
         """
         return self._request(
@@ -257,6 +304,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Get a list of branches.
 
+        :param project_id: The ID of the project.
+        :param cursor: The cursor for pagination (default is None).
+        :param limit: The maximum number of projects to retrieve (default is None).
+        :return: A list of dataclasses representing the projects.
+
         More info: https://api-docs.neon.tech/reference/listprojectbranches
         """
 
@@ -271,6 +323,10 @@ class NeonAPI:
     def branch(self, project_id: str, branch_id: str) -> t.Dict[str, t.Any]:
         """Get a branch.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :return: A dataclass representing the branch.
+
         More info: https://api-docs.neon.tech/reference/getprojectbranch
         """
 
@@ -284,6 +340,10 @@ class NeonAPI:
     def branch_create(self, project_id: str, **json: dict) -> t.Dict[str, t.Any]:
         """Create a new branch. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the branch.
+
         More info: https://api-docs.neon.tech/reference/createprojectbranch
         """
         return self._request("POST", f"projects/{ project_id }/branches", json=json)
@@ -294,6 +354,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Update a branch by branch_id. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the branch.
+
         More info: https://api-docs.neon.tech/reference/updateprojectbranch
         """
 
@@ -305,6 +370,10 @@ class NeonAPI:
     def branch_delete(self, project_id: str, branch_id: str) -> t.Dict[str, t.Any]:
         """Delete a branch by branch_id.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :return: A dataclass representing the branch.
+
         More info: https://api-docs.neon.tech/reference/deleteprojectbranch
         """
         return self._request(
@@ -317,6 +386,10 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Set a branch as primary by branch_id.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :return: A dataclass representing the branch.
+
         More info: https://api-docs.neon.tech/reference/setprimaryprojectbranch"""
 
         return self._request(
@@ -331,9 +404,15 @@ class NeonAPI:
         *,
         cursor: str | None = None,
         limit: int | None = None,
-    ) -> t.Dict[str, t.Any]:
+    ) -> t.List[t.Dict[str, t.Any]]:
         """Get a list of databases.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param cursor: The cursor for pagination (default is None).
+        :param limit: The maximum number of projects to retrieve (default is None).
+        :return: A list of dataclasses representing the database.
+
         More info: https://api-docs.neon.tech/reference/listprojectbranchdatabases
         """
 
@@ -352,6 +431,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Get a database.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param database_id: The ID of the database.
+        :return: A dataclass representing the database.
+
         More info: https://api-docs.neon.tech/reference/getprojectbranchdatabase
         """
 
@@ -369,6 +453,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Create a new database. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the database.
+
         More info: https://api-docs.neon.tech/reference/createprojectbranchdatabase
         """
 
@@ -384,6 +473,12 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Update a database. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param database_id: The ID of the database.
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the database.
+
         More info: https://api-docs.neon.tech/reference/updateprojectbranchdatabase
         """
 
@@ -399,6 +494,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Delete a database by database_id.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param database_id: The ID of the database.
+        :return: A dataclass representing the database.
+
         More info: https://api-docs.neon.tech/reference/deleteprojectbranchdatabase
         """
 
@@ -411,6 +511,9 @@ class NeonAPI:
     def endpoints(self, project_id: str) -> t.Dict[str, t.Any]:
         """Get a list of endpoints for a given branch
 
+        :param project_id: The ID of the project.
+        :return: A list of dataclasses representing the endpoints.
+
         More info: https://api-docs.neon.tech/reference/listprojectendpoints
         """
         return self._request("GET", f"projects/{ project_id }/endpoints")
@@ -419,6 +522,10 @@ class NeonAPI:
     def endpoint(self, project_id: str, endpoint_id: str) -> t.Dict[str, t.Any]:
         """Get an endpoint for a given branch.
 
+        :param project_id: The ID of the project.
+        :param endpoint_id: The ID of the endpoint.
+        :return: A dataclass representing the endpoint.
+
         More info: https://api-docs.neon.tech/reference/getprojectendpoint
         """
         return self._request(
@@ -434,6 +541,10 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Create a new endpoint. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the endpoint.
+
         More info: https://api-docs.neon.tech/reference/createprojectendpoint
         """
 
@@ -443,6 +554,10 @@ class NeonAPI:
     def endpoint_delete(self, project_id: str, endpoint_id: str) -> t.Dict[str, t.Any]:
         """Delete an endpoint by endpoint_id.
 
+        :param project_id: The ID of the project.
+        :param endpoint_id: The ID of the endpoint.
+        :return: A dataclass representing the endpoint.
+
         More info: https://api-docs.neon.tech/reference/deleteprojectendpoint
         """
 
@@ -457,6 +572,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Update an endpoint. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param endpoint_id: The ID of the endpoint.
+        :param json: The JSON paypload to send to the server.
+        :return: A dataclass representing the endpoint.
+
         More info: https://api-docs.neon.tech/reference/updateprojectendpoint
         """
 
@@ -470,6 +590,10 @@ class NeonAPI:
     def endpoint_start(self, project_id: str, endpoint_id: str):
         """Start an endpoint by endpoint_id.
 
+        :param project_id: The ID of the project.
+        :param endpoint_id: The ID of the endpoint.
+        :return: A dataclass representing the endpoint.
+
         More info: https://api-docs.neon.tech/reference/startprojectendpoint"""
 
         return self._request(
@@ -481,6 +605,10 @@ class NeonAPI:
     def endpoint_suspend(self, project_id: str, endpoint_id: str):
         """Suspend an endpoint by endpoint_id.
 
+        :param project_id: The ID of the project.
+        :param endpoint_id: The ID of the endpoint.
+        :return: A dataclass representing the endpoint.
+
         More info: https://api-docs.neon.tech/reference/suspendprojectendpoint
         """
 
@@ -493,6 +621,10 @@ class NeonAPI:
     def roles(self, project_id: str, branch_id: str) -> t.Dict[str, t.Any]:
         """Get a list of roles for a given branch.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :return: A list of dataclasses representing the roles.
+
         More info: https://api-docs.neon.tech/reference/listprojectbranchroles
         """
 
@@ -506,6 +638,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Get a role for a given branch.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param role_name: The name of the role.
+        :return: A dataclass representing the role.
+
         More info: https://api-docs.neon.tech/reference/getprojectbranchrole
 
         """
@@ -522,6 +659,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Create a new role. Accepts all keyword arguments for json body.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param role_name: The name of the role.
+        :return: A dataclass representing the role.
+
         More info: https://api-docs.neon.tech/reference/createprojectbranchrole
         """
 
@@ -540,6 +682,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Delete a role by given role name.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param role_name: The name of the role.
+        :return: A dataclass representing the role.
+
         More info: https://api-docs.neon.tech/reference/deleteprojectbranchrole
         """
 
@@ -557,6 +704,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Get a role password.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param role_name: The name of the role.
+        :return: A dataclass representing the role password.
+
         More info: https://api-docs.neon.tech/reference/getprojectbranchrolepassword"""
 
         return self._request(
@@ -573,6 +725,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Reset a role password.
 
+        :param project_id: The ID of the project.
+        :param branch_id: The ID of the branch.
+        :param role_name: The name of the role.
+        :return: A dataclass representing the role.
+
         More info: https://api-docs.neon.tech/reference/resetprojectbranchrolepassword
         """
 
@@ -591,6 +748,11 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Get a list of operations.
 
+        :param project_id: The ID of the project.
+        :param cursor: The cursor for pagination (default is None).
+        :param limit: The maximum number of projects to retrieve (default is None).
+        :return: A list of dataclasses representing the operations.
+
         More info: https://api-docs.neon.tech/reference/listprojectoperations
         """
 
@@ -603,6 +765,10 @@ class NeonAPI:
     def operation(self, project_id: str, operation_id: str) -> t.Dict[str, t.Any]:
         """Get an operation.
 
+        :param project_id: The ID of the project.
+        :param operation_id: The ID of the operation.
+        :return: A dataclass representing the operation.
+
         More info: https://api-docs.neon.tech/reference/getprojectoperation
         """
 
@@ -621,6 +787,12 @@ class NeonAPI:
     ) -> t.Dict[str, t.Any]:
         """Experimental — get a list of consumption metrics for all projects.
 
+        :param cursor: The cursor for pagination (default is None).
+        :param limit: The maximum number of projects to retrieve (default is None).
+        :param from_date: The start date for the consumption metrics (default is None).
+        :param to_date: The end date for the consumption metrics (default is None).
+        :return: A dataclass representing the consumption metrics.
+
         More info: https://api-docs.neon.tech/reference/listprojectsconsumption
         """
 
diff --git a/neon_client/exceptions.py b/neon_client/exceptions.py
index 3a12003..ccb5416 100644
--- a/neon_client/exceptions.py
+++ b/neon_client/exceptions.py
@@ -1,5 +1,5 @@
 from requests.exceptions import HTTPError
 
 
-class NeonAPIException(HTTPError):
+class NeonAPIError(HTTPError):
     pass