release: 0.124.0

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "0.123.0"
+  ".": "0.124.0"
 }

.stats.yml

@@ -1,4 +1,4 @@
-configured_endpoints: 190
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/lithic/lithic-0f374e78a0212145a2f55a55dfc39a612de19094d5152ae26b1bc74b01b9e343.yml
-openapi_spec_hash: ec888cdaebea979a2cd6231ca04c346c
-config_hash: 01dfc901bb6d54b0f582155d779bcbe0
+configured_endpoints: 192
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/lithic/lithic-00f07b0edcc0c3c5ef79920ced7f58dac2434df5e4c27ff6041783e8228315f9.yml
+openapi_spec_hash: 963688b09480159a06865075c94a2577
+config_hash: 265a2b679964f4ad5706de101ad2a942

CHANGELOG.md

@@ -1,5 +1,20 @@
 # Changelog
 
+## 0.124.0 (2026-05-11)
+
+Full Changelog: [v0.123.0...v0.124.0](https://github.com/lithic-com/lithic-python/compare/v0.123.0...v0.124.0)
+
+### Features
+
+* **api:** add retrieve_signals method to accounts and cards ([6e1649a](https://github.com/lithic-com/lithic-python/commit/6e1649ad7ee7ca58316891747b24c3f4773553d9))
+* **api:** add unit parameter and travel/distance attributes to auth_rules ([02bd0f0](https://github.com/lithic-com/lithic-python/commit/02bd0f021353f6ddb9e930f3e5515c0636adfb29))
+* **internal/types:** support eagerly validating pydantic iterators ([e956125](https://github.com/lithic-com/lithic-python/commit/e956125636a2734501d5fb3a46de532102a00e87))
+
+
+### Bug Fixes
+
+* **client:** add missing f-string prefix in file type error message ([826938a](https://github.com/lithic-com/lithic-python/commit/826938aec1590a333b0e377dc6f99c9e14e96cdf))
+
 ## 0.123.0 (2026-05-06)
 
 Full Changelog: [v0.122.0...v0.123.0](https://github.com/lithic-com/lithic-python/compare/v0.122.0...v0.123.0)

api.md

@@ -39,6 +39,7 @@ Methods:
 - <code title="get /v1/accounts/{account_token}">client.accounts.<a href="./src/lithic/resources/accounts.py">retrieve</a>(account_token) -> <a href="./src/lithic/types/account.py">Account</a></code>
 - <code title="patch /v1/accounts/{account_token}">client.accounts.<a href="./src/lithic/resources/accounts.py">update</a>(account_token, \*\*<a href="src/lithic/types/account_update_params.py">params</a>) -> <a href="./src/lithic/types/account.py">Account</a></code>
 - <code title="get /v1/accounts">client.accounts.<a href="./src/lithic/resources/accounts.py">list</a>(\*\*<a href="src/lithic/types/account_list_params.py">params</a>) -> <a href="./src/lithic/types/account.py">SyncCursorPage[Account]</a></code>
+- <code title="get /v1/accounts/{account_token}/signals">client.accounts.<a href="./src/lithic/resources/accounts.py">retrieve_signals</a>(account_token) -> <a href="./src/lithic/types/signals_response.py">SignalsResponse</a></code>
 - <code title="get /v1/accounts/{account_token}/spend_limits">client.accounts.<a href="./src/lithic/resources/accounts.py">retrieve_spend_limits</a>(account_token) -> <a href="./src/lithic/types/account_spend_limits.py">AccountSpendLimits</a></code>
 
 # AccountHolders
@@ -88,6 +89,12 @@ Methods:
 
 # AuthRules
 
+Types:
+
+```python
+from lithic.types import SignalsResponse
+```
+
 ## V2
 
 Types:
@@ -233,6 +240,7 @@ Methods:
 - <code title="post /v1/cards/{card_token}/provision">client.cards.<a href="./src/lithic/resources/cards/cards.py">provision</a>(card_token, \*\*<a href="src/lithic/types/card_provision_params.py">params</a>) -> <a href="./src/lithic/types/card_provision_response.py">CardProvisionResponse</a></code>
 - <code title="post /v1/cards/{card_token}/reissue">client.cards.<a href="./src/lithic/resources/cards/cards.py">reissue</a>(card_token, \*\*<a href="src/lithic/types/card_reissue_params.py">params</a>) -> <a href="./src/lithic/types/card.py">Card</a></code>
 - <code title="post /v1/cards/{card_token}/renew">client.cards.<a href="./src/lithic/resources/cards/cards.py">renew</a>(card_token, \*\*<a href="src/lithic/types/card_renew_params.py">params</a>) -> <a href="./src/lithic/types/card.py">Card</a></code>
+- <code title="get /v1/cards/{card_token}/signals">client.cards.<a href="./src/lithic/resources/cards/cards.py">retrieve_signals</a>(card_token) -> <a href="./src/lithic/types/signals_response.py">SignalsResponse</a></code>
 - <code title="get /v1/cards/{card_token}/spend_limits">client.cards.<a href="./src/lithic/resources/cards/cards.py">retrieve_spend_limits</a>(card_token) -> <a href="./src/lithic/types/card_spend_limits.py">CardSpendLimits</a></code>
 - <code title="post /v1/cards/search_by_pan">client.cards.<a href="./src/lithic/resources/cards/cards.py">search_by_pan</a>(\*\*<a href="src/lithic/types/card_search_by_pan_params.py">params</a>) -> <a href="./src/lithic/types/card.py">Card</a></code>
 - <code title="post /v1/cards/{card_token}/web_provision">client.cards.<a href="./src/lithic/resources/cards/cards.py">web_provision</a>(card_token, \*\*<a href="src/lithic/types/card_web_provision_params.py">params</a>) -> <a href="./src/lithic/types/card_web_provision_response.py">CardWebProvisionResponse</a></code>

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "lithic"
-version = "0.123.0"
+version = "0.124.0"
 description = "The official Python library for the lithic API"
 dynamic = ["readme"]
 license = "Apache-2.0"

src/lithic/_files.py

@@ -99,7 +99,7 @@ async def async_to_httpx_files(files: RequestFiles | None) -> HttpxRequestFiles
     elif is_sequence_t(files):
         files = [(key, await _async_transform_file(file)) for key, file in files]
     else:
-        raise TypeError("Unexpected file type input {type(files)}, expected mapping or sequence")
+        raise TypeError(f"Unexpected file type input {type(files)}, expected mapping or sequence")
 
     return files
 

src/lithic/_models.py

@@ -25,7 +25,9 @@
     ClassVar,
     Protocol,
     Required,
+    Annotated,
     ParamSpec,
+    TypeAlias,
     TypedDict,
     TypeGuard,
     final,
@@ -79,7 +81,15 @@
 from ._constants import RAW_RESPONSE_HEADER
 
 if TYPE_CHECKING:
+    from pydantic import GetCoreSchemaHandler, ValidatorFunctionWrapHandler
+    from pydantic_core import CoreSchema, core_schema
     from pydantic_core.core_schema import ModelField, ModelSchema, LiteralSchema, ModelFieldsSchema
+else:
+    try:
+        from pydantic_core import CoreSchema, core_schema
+    except ImportError:
+        CoreSchema = None
+        core_schema = None
 
 __all__ = ["BaseModel", "GenericModel"]
 
@@ -396,6 +406,76 @@ def model_dump_json(
             )
 
 
+class _EagerIterable(list[_T], Generic[_T]):
+    """
+    Accepts any Iterable[T] input (including generators), consumes it
+    eagerly, and validates all items upfront.
+
+    Validation preserves the original container type where possible
+    (e.g. a set[T] stays a set[T]).  Serialization (model_dump / JSON)
+    always emits a list — round-tripping through model_dump() will not
+    restore the original container type.
+    """
+
+    @classmethod
+    def __get_pydantic_core_schema__(
+        cls,
+        source_type: Any,
+        handler: GetCoreSchemaHandler,
+    ) -> CoreSchema:
+        (item_type,) = get_args(source_type) or (Any,)
+        item_schema: CoreSchema = handler.generate_schema(item_type)
+        list_of_items_schema: CoreSchema = core_schema.list_schema(item_schema)
+
+        return core_schema.no_info_wrap_validator_function(
+            cls._validate,
+            list_of_items_schema,
+            serialization=core_schema.plain_serializer_function_ser_schema(
+                cls._serialize,
+                info_arg=False,
+            ),
+        )
+
+    @staticmethod
+    def _validate(v: Iterable[_T], handler: "ValidatorFunctionWrapHandler") -> Any:
+        original_type: type[Any] = type(v)
+
+        # Normalize to list so list_schema can validate each item
+        if isinstance(v, list):
+            items: list[_T] = v
+        else:
+            try:
+                items = list(v)
+            except TypeError as e:
+                raise TypeError("Value is not iterable") from e
+
+        # Validate items against the inner schema
+        validated: list[_T] = handler(items)
+
+        # Reconstruct original container type
+        if original_type is list:
+            return validated
+        # str(list) produces the list's repr, not a string built from items,
+        # so skip reconstruction for str and its subclasses.
+        if issubclass(original_type, str):
+            return validated
+        try:
+            return original_type(validated)
+        except (TypeError, ValueError):
+            # If the type cannot be reconstructed, just return the validated list
+            return validated
+
+    @staticmethod
+    def _serialize(v: Iterable[_T]) -> list[_T]:
+        """Always serialize as a list so Pydantic's JSON encoder is happy."""
+        if isinstance(v, list):
+            return v
+        return list(v)
+
+
+EagerIterable: TypeAlias = Annotated[Iterable[_T], _EagerIterable]
+
+
 def _construct_field(value: object, field: FieldInfo, key: str) -> object:
     if value is None:
         return field_get_default(field)

src/lithic/_version.py

@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "lithic"
-__version__ = "0.123.0"  # x-release-please-version
+__version__ = "0.124.0"  # x-release-please-version

src/lithic/resources/accounts.py

@@ -18,6 +18,7 @@
 from ..pagination import SyncCursorPage, AsyncCursorPage
 from .._base_client import AsyncPaginator, make_request_options
 from ..types.account import Account
+from ..types.signals_response import SignalsResponse
 from ..types.account_spend_limits import AccountSpendLimits
 
 __all__ = ["Accounts", "AsyncAccounts"]
@@ -259,6 +260,46 @@ def list(
             model=Account,
         )
 
+    def retrieve_signals(
+        self,
+        account_token: str,
+        *,
+        # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
+        # The extra values given here take precedence over values defined on the client or passed to this method.
+        extra_headers: Headers | None = None,
+        extra_query: Query | None = None,
+        extra_body: Body | None = None,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
+    ) -> SignalsResponse:
+        """
+        Returns behavioral feature state derived from an account's transaction history.
+
+        These signals expose the same data used by behavioral rule attributes (e.g.
+        `AMOUNT_Z_SCORE` with `scope: ACCOUNT`, `IS_NEW_COUNTRY` with `scope: ACCOUNT`)
+        and custom code `TRANSACTION_HISTORY_SIGNALS` features, allowing clients to
+        inspect feature values before writing rules and debug rule behavior.
+
+        Note: 3DS fields are not available at the account scope and will be null.
+
+        Args:
+          extra_headers: Send extra headers
+
+          extra_query: Add additional query parameters to the request
+
+          extra_body: Add additional JSON properties to the request
+
+          timeout: Override the client-level default timeout for this request, in seconds
+        """
+        if not account_token:
+            raise ValueError(f"Expected a non-empty value for `account_token` but received {account_token!r}")
+        return self._get(
+            path_template("/v1/accounts/{account_token}/signals", account_token=account_token),
+            options=make_request_options(
+                extra_headers=extra_headers, extra_query=extra_query, extra_body=extra_body, timeout=timeout
+            ),
+            cast_to=SignalsResponse,
+        )
+
     def retrieve_spend_limits(
         self,
         account_token: str,
@@ -533,6 +574,46 @@ def list(
             model=Account,
         )
 
+    async def retrieve_signals(
+        self,
+        account_token: str,
+        *,
+        # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
+        # The extra values given here take precedence over values defined on the client or passed to this method.
+        extra_headers: Headers | None = None,
+        extra_query: Query | None = None,
+        extra_body: Body | None = None,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
+    ) -> SignalsResponse:
+        """
+        Returns behavioral feature state derived from an account's transaction history.
+
+        These signals expose the same data used by behavioral rule attributes (e.g.
+        `AMOUNT_Z_SCORE` with `scope: ACCOUNT`, `IS_NEW_COUNTRY` with `scope: ACCOUNT`)
+        and custom code `TRANSACTION_HISTORY_SIGNALS` features, allowing clients to
+        inspect feature values before writing rules and debug rule behavior.
+
+        Note: 3DS fields are not available at the account scope and will be null.
+
+        Args:
+          extra_headers: Send extra headers
+
+          extra_query: Add additional query parameters to the request
+
+          extra_body: Add additional JSON properties to the request
+
+          timeout: Override the client-level default timeout for this request, in seconds
+        """
+        if not account_token:
+            raise ValueError(f"Expected a non-empty value for `account_token` but received {account_token!r}")
+        return await self._get(
+            path_template("/v1/accounts/{account_token}/signals", account_token=account_token),
+            options=make_request_options(
+                extra_headers=extra_headers, extra_query=extra_query, extra_body=extra_body, timeout=timeout
+            ),
+            cast_to=SignalsResponse,
+        )
+
     async def retrieve_spend_limits(
         self,
         account_token: str,
@@ -584,6 +665,9 @@ def __init__(self, accounts: Accounts) -> None:
         self.list = _legacy_response.to_raw_response_wrapper(
             accounts.list,
         )
+        self.retrieve_signals = _legacy_response.to_raw_response_wrapper(
+            accounts.retrieve_signals,
+        )
         self.retrieve_spend_limits = _legacy_response.to_raw_response_wrapper(
             accounts.retrieve_spend_limits,
         )
@@ -602,6 +686,9 @@ def __init__(self, accounts: AsyncAccounts) -> None:
         self.list = _legacy_response.async_to_raw_response_wrapper(
             accounts.list,
         )
+        self.retrieve_signals = _legacy_response.async_to_raw_response_wrapper(
+            accounts.retrieve_signals,
+        )
         self.retrieve_spend_limits = _legacy_response.async_to_raw_response_wrapper(
             accounts.retrieve_spend_limits,
         )
@@ -620,6 +707,9 @@ def __init__(self, accounts: Accounts) -> None:
         self.list = to_streamed_response_wrapper(
             accounts.list,
         )
+        self.retrieve_signals = to_streamed_response_wrapper(
+            accounts.retrieve_signals,
+        )
         self.retrieve_spend_limits = to_streamed_response_wrapper(
             accounts.retrieve_spend_limits,
         )
@@ -638,6 +728,9 @@ def __init__(self, accounts: AsyncAccounts) -> None:
         self.list = async_to_streamed_response_wrapper(
             accounts.list,
         )
+        self.retrieve_signals = async_to_streamed_response_wrapper(
+            accounts.retrieve_signals,
+        )
         self.retrieve_spend_limits = async_to_streamed_response_wrapper(
             accounts.retrieve_spend_limits,
         )