diff --git a/pyproject.toml b/pyproject.toml
index dff3f50..5623c86 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,6 +12,22 @@ dependencies = [
 requires-python = ">=3.10"
 readme = "README.md"
 license = { text = "MIT" }
+repository = "https://github.com/ljnsn/coinapi-rest"
+keywords = ["cryptocurrency", "crypto", "prices", "coinapi"]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3 :: Only",
+    "Topic :: Software Development :: Libraries",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Typing :: Typed",
+]
 
 [build-system]
 requires = ["pdm-backend"]
diff --git a/src/coinapi/models/operations/__init__.py b/src/coinapi/models/operations/__init__.py
index 86a2039..59fcc01 100644
--- a/src/coinapi/models/operations/__init__.py
+++ b/src/coinapi/models/operations/__init__.py
@@ -1,56 +1,8 @@
 """Operations."""
 
-from coinapi.models.operations.get_specific_rate import *
-from coinapi.models.operations.get_v1_assets import *
-from coinapi.models.operations.get_v1_assets_asset_id_ import *
-from coinapi.models.operations.get_v1_assets_icons_size_ import *
-from coinapi.models.operations.get_v1_exchangerate_asset_id_base_ import *
-from coinapi.models.operations.get_v1_exchangerate_asset_id_base_asset_id_quote_history import *
-from coinapi.models.operations.get_v1_exchangerate_history_periods import *
-from coinapi.models.operations.get_v1_exchanges import *
-from coinapi.models.operations.get_v1_exchanges_exchange_id_ import *
-from coinapi.models.operations.get_v1_exchanges_icons_size_ import *
-from coinapi.models.operations.get_v1_indexes import *
-from coinapi.models.operations.get_v1_indexes_index_id_ import *
-from coinapi.models.operations.get_v1_indexes_index_id_history import *
-from coinapi.models.operations.get_v1_indexes_index_id_timeseries import *
-from coinapi.models.operations.get_v1_indexes_index_id_timeseries_to_be_announced import *
-from coinapi.models.operations.get_v1_metadata import *
-from coinapi.models.operations.get_v1_metrics_asset_current import *
-from coinapi.models.operations.get_v1_metrics_asset_history import *
-from coinapi.models.operations.get_v1_metrics_asset_listing import *
-from coinapi.models.operations.get_v1_metrics_exchange_current import *
-from coinapi.models.operations.get_v1_metrics_exchange_history import *
-from coinapi.models.operations.get_v1_metrics_exchange_listing import *
-from coinapi.models.operations.get_v1_metrics_listing import *
-from coinapi.models.operations.get_v1_metrics_symbol_current import *
-from coinapi.models.operations.get_v1_metrics_symbol_history import *
-from coinapi.models.operations.get_v1_metrics_symbol_listing import *
-from coinapi.models.operations.get_v1_ohlcv_exchanges_exchange_id_history import *
-from coinapi.models.operations.get_v1_ohlcv_periods import *
-from coinapi.models.operations.get_v1_ohlcv_symbol_id_history import *
-from coinapi.models.operations.get_v1_ohlcv_symbol_id_latest import *
-from coinapi.models.operations.get_v1_orderbooks3_current import *
-from coinapi.models.operations.get_v1_orderbooks3_symbol_id_current import *
-from coinapi.models.operations.get_v1_orderbooks_symbol_id_current import *
-from coinapi.models.operations.get_v1_orderbooks_symbol_id_depth_current import *
-from coinapi.models.operations.get_v1_orderbooks_symbol_id_history import *
-from coinapi.models.operations.get_v1_orderbooks_symbol_id_latest import *
-from coinapi.models.operations.get_v1_quotes_current import *
-from coinapi.models.operations.get_v1_quotes_latest import *
-from coinapi.models.operations.get_v1_quotes_symbol_id_current import *
-from coinapi.models.operations.get_v1_quotes_symbol_id_history import *
-from coinapi.models.operations.get_v1_quotes_symbol_id_latest import *
-from coinapi.models.operations.get_v1_symbols import *
-from coinapi.models.operations.get_v1_symbols_exchange_id_ import *
-from coinapi.models.operations.get_v1_symbols_map_exchange_id_ import *
-from coinapi.models.operations.get_v1_trades_latest import *
-from coinapi.models.operations.get_v1_trades_symbol_id_history import *
-from coinapi.models.operations.get_v1_trades_symbol_id_latest import *
-from coinapi.models.operations.post_v1_indexes_json import *
-from coinapi.models.operations.put_v1_indexes_index_id_json import *
-
-__all__ = [
+__all__ = (
+    "CoinAPIRequest",
+    "CoinAPIResponse",
     "GetSpecificRateRequest",
     "GetSpecificRateResponse",
     "GetV1AssetsAssetIDRequest",
@@ -143,4 +95,54 @@
     "PostV1IndexesJSONResponse",
     "PutV1IndexesIndexIDJSONRequest",
     "PutV1IndexesIndexIDJSONResponse",
-]
+)
+from coinapi.models.operations.base import CoinAPIRequest, CoinAPIResponse
+from coinapi.models.operations.get_specific_rate import *
+from coinapi.models.operations.get_v1_assets import *
+from coinapi.models.operations.get_v1_assets_asset_id_ import *
+from coinapi.models.operations.get_v1_assets_icons_size_ import *
+from coinapi.models.operations.get_v1_exchangerate_asset_id_base_ import *
+from coinapi.models.operations.get_v1_exchangerate_asset_id_base_asset_id_quote_history import *
+from coinapi.models.operations.get_v1_exchangerate_history_periods import *
+from coinapi.models.operations.get_v1_exchanges import *
+from coinapi.models.operations.get_v1_exchanges_exchange_id_ import *
+from coinapi.models.operations.get_v1_exchanges_icons_size_ import *
+from coinapi.models.operations.get_v1_indexes import *
+from coinapi.models.operations.get_v1_indexes_index_id_ import *
+from coinapi.models.operations.get_v1_indexes_index_id_history import *
+from coinapi.models.operations.get_v1_indexes_index_id_timeseries import *
+from coinapi.models.operations.get_v1_indexes_index_id_timeseries_to_be_announced import *
+from coinapi.models.operations.get_v1_metadata import *
+from coinapi.models.operations.get_v1_metrics_asset_current import *
+from coinapi.models.operations.get_v1_metrics_asset_history import *
+from coinapi.models.operations.get_v1_metrics_asset_listing import *
+from coinapi.models.operations.get_v1_metrics_exchange_current import *
+from coinapi.models.operations.get_v1_metrics_exchange_history import *
+from coinapi.models.operations.get_v1_metrics_exchange_listing import *
+from coinapi.models.operations.get_v1_metrics_listing import *
+from coinapi.models.operations.get_v1_metrics_symbol_current import *
+from coinapi.models.operations.get_v1_metrics_symbol_history import *
+from coinapi.models.operations.get_v1_metrics_symbol_listing import *
+from coinapi.models.operations.get_v1_ohlcv_exchanges_exchange_id_history import *
+from coinapi.models.operations.get_v1_ohlcv_periods import *
+from coinapi.models.operations.get_v1_ohlcv_symbol_id_history import *
+from coinapi.models.operations.get_v1_ohlcv_symbol_id_latest import *
+from coinapi.models.operations.get_v1_orderbooks3_current import *
+from coinapi.models.operations.get_v1_orderbooks3_symbol_id_current import *
+from coinapi.models.operations.get_v1_orderbooks_symbol_id_current import *
+from coinapi.models.operations.get_v1_orderbooks_symbol_id_depth_current import *
+from coinapi.models.operations.get_v1_orderbooks_symbol_id_history import *
+from coinapi.models.operations.get_v1_orderbooks_symbol_id_latest import *
+from coinapi.models.operations.get_v1_quotes_current import *
+from coinapi.models.operations.get_v1_quotes_latest import *
+from coinapi.models.operations.get_v1_quotes_symbol_id_current import *
+from coinapi.models.operations.get_v1_quotes_symbol_id_history import *
+from coinapi.models.operations.get_v1_quotes_symbol_id_latest import *
+from coinapi.models.operations.get_v1_symbols import *
+from coinapi.models.operations.get_v1_symbols_exchange_id_ import *
+from coinapi.models.operations.get_v1_symbols_map_exchange_id_ import *
+from coinapi.models.operations.get_v1_trades_latest import *
+from coinapi.models.operations.get_v1_trades_symbol_id_history import *
+from coinapi.models.operations.get_v1_trades_symbol_id_latest import *
+from coinapi.models.operations.post_v1_indexes_json import *
+from coinapi.models.operations.put_v1_indexes_index_id_json import *