diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 7ccfe12c..bc845f32 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.15.0"
+  ".": "1.16.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index d401388d..06d70961 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 41
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/finch%2Ffinch-57fcc886b05984f78d7e68e9b2494af925f1b104e3475ed5281fde6c728a8518.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/finch%2Ffinch-7a816d4a5f0039230590a6662f3513d5756344ca662761ecbc49016593f65836.yml
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7bc7115a..1fc40806 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.16.0 (2025-02-27)
+
+Full Changelog: [v1.15.0...v1.16.0](https://github.com/Finch-API/finch-api-python/compare/v1.15.0...v1.16.0)
+
+### Features
+
+* **api:** api update ([#605](https://github.com/Finch-API/finch-api-python/issues/605)) ([3967436](https://github.com/Finch-API/finch-api-python/commit/3967436c42269da3e164c1351297e64b841fdf04))
+
 ## 1.15.0 (2025-02-26)
 
 Full Changelog: [v1.14.2...v1.15.0](https://github.com/Finch-API/finch-api-python/compare/v1.14.2...v1.15.0)
diff --git a/pyproject.toml b/pyproject.toml
index 12abc6e1..897b2659 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "finch-api"
-version = "1.15.0"
+version = "1.16.0"
 description = "The official Python library for the Finch API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/finch/_version.py b/src/finch/_version.py
index 6f0b3869..49d3934d 100644
--- a/src/finch/_version.py
+++ b/src/finch/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "finch"
-__version__ = "1.15.0"  # x-release-please-version
+__version__ = "1.16.0"  # x-release-please-version
diff --git a/src/finch/types/hris/pay_statement.py b/src/finch/types/hris/pay_statement.py
index 8921c03b..b96210e5 100644
--- a/src/finch/types/hris/pay_statement.py
+++ b/src/finch/types/hris/pay_statement.py
@@ -11,16 +11,20 @@
     "PayStatement",
     "Earning",
     "EarningAttributes",
+    "EarningAttributesMetadata",
     "EmployeeDeduction",
     "EmployeeDeductionAttributes",
+    "EmployeeDeductionAttributesMetadata",
     "EmployerContribution",
     "EmployerContributionAttributes",
+    "EmployerContributionAttributesMetadata",
     "Tax",
     "TaxAttributes",
+    "TaxAttributesMetadata",
 ]
 
 
-class EarningAttributes(BaseModel):
+class EarningAttributesMetadata(BaseModel):
     metadata: Optional[Dict[str, object]] = None
     """The metadata to be attached to the entity by existing rules.
 
@@ -29,6 +33,10 @@ class EarningAttributes(BaseModel):
     """
 
 
+class EarningAttributes(BaseModel):
+    metadata: Optional[EarningAttributesMetadata] = None
+
+
 class Earning(BaseModel):
     amount: Optional[int] = None
     """The earnings amount in cents."""
@@ -68,7 +76,7 @@ class Earning(BaseModel):
     """The type of earning."""
 
 
-class EmployeeDeductionAttributes(BaseModel):
+class EmployeeDeductionAttributesMetadata(BaseModel):
     metadata: Optional[Dict[str, object]] = None
     """The metadata to be attached to the entity by existing rules.
 
@@ -77,6 +85,10 @@ class EmployeeDeductionAttributes(BaseModel):
     """
 
 
+class EmployeeDeductionAttributes(BaseModel):
+    metadata: Optional[EmployeeDeductionAttributesMetadata] = None
+
+
 class EmployeeDeduction(BaseModel):
     amount: Optional[int] = None
     """The deduction amount in cents."""
@@ -96,7 +108,7 @@ class EmployeeDeduction(BaseModel):
     """Type of benefit."""
 
 
-class EmployerContributionAttributes(BaseModel):
+class EmployerContributionAttributesMetadata(BaseModel):
     metadata: Optional[Dict[str, object]] = None
     """The metadata to be attached to the entity by existing rules.
 
@@ -105,6 +117,10 @@ class EmployerContributionAttributes(BaseModel):
     """
 
 
+class EmployerContributionAttributes(BaseModel):
+    metadata: Optional[EmployerContributionAttributesMetadata] = None
+
+
 class EmployerContribution(BaseModel):
     amount: Optional[int] = None
     """The contribution amount in cents."""
@@ -121,7 +137,7 @@ class EmployerContribution(BaseModel):
     """Type of benefit."""
 
 
-class TaxAttributes(BaseModel):
+class TaxAttributesMetadata(BaseModel):
     metadata: Optional[Dict[str, object]] = None
     """The metadata to be attached to the entity by existing rules.
 
@@ -130,6 +146,10 @@ class TaxAttributes(BaseModel):
     """
 
 
+class TaxAttributes(BaseModel):
+    metadata: Optional[TaxAttributesMetadata] = None
+
+
 class Tax(BaseModel):
     amount: Optional[int] = None
     """The tax amount in cents."""
diff --git a/src/finch/types/sandbox/payment_create_params.py b/src/finch/types/sandbox/payment_create_params.py
index d1691443..9c606070 100644
--- a/src/finch/types/sandbox/payment_create_params.py
+++ b/src/finch/types/sandbox/payment_create_params.py
@@ -13,12 +13,16 @@
     "PayStatement",
     "PayStatementEarning",
     "PayStatementEarningAttributes",
+    "PayStatementEarningAttributesMetadata",
     "PayStatementEmployeeDeduction",
     "PayStatementEmployeeDeductionAttributes",
+    "PayStatementEmployeeDeductionAttributesMetadata",
     "PayStatementEmployerContribution",
     "PayStatementEmployerContributionAttributes",
+    "PayStatementEmployerContributionAttributesMetadata",
     "PayStatementTax",
     "PayStatementTaxAttributes",
+    "PayStatementTaxAttributesMetadata",
 ]
 
 
@@ -30,7 +34,7 @@ class PaymentCreateParams(TypedDict, total=False):
     start_date: str
 
 
-class PayStatementEarningAttributes(TypedDict, total=False):
+class PayStatementEarningAttributesMetadata(TypedDict, total=False):
     metadata: Dict[str, object]
     """The metadata to be attached to the entity by existing rules.
 
@@ -39,6 +43,10 @@ class PayStatementEarningAttributes(TypedDict, total=False):
     """
 
 
+class PayStatementEarningAttributes(TypedDict, total=False):
+    metadata: PayStatementEarningAttributesMetadata
+
+
 class PayStatementEarning(TypedDict, total=False):
     amount: Optional[int]
     """The earnings amount in cents."""
@@ -78,7 +86,7 @@ class PayStatementEarning(TypedDict, total=False):
     """The type of earning."""
 
 
-class PayStatementEmployeeDeductionAttributes(TypedDict, total=False):
+class PayStatementEmployeeDeductionAttributesMetadata(TypedDict, total=False):
     metadata: Dict[str, object]
     """The metadata to be attached to the entity by existing rules.
 
@@ -87,6 +95,10 @@ class PayStatementEmployeeDeductionAttributes(TypedDict, total=False):
     """
 
 
+class PayStatementEmployeeDeductionAttributes(TypedDict, total=False):
+    metadata: PayStatementEmployeeDeductionAttributesMetadata
+
+
 class PayStatementEmployeeDeduction(TypedDict, total=False):
     amount: Optional[int]
     """The deduction amount in cents."""
@@ -106,7 +118,7 @@ class PayStatementEmployeeDeduction(TypedDict, total=False):
     """Type of benefit."""
 
 
-class PayStatementEmployerContributionAttributes(TypedDict, total=False):
+class PayStatementEmployerContributionAttributesMetadata(TypedDict, total=False):
     metadata: Dict[str, object]
     """The metadata to be attached to the entity by existing rules.
 
@@ -115,6 +127,10 @@ class PayStatementEmployerContributionAttributes(TypedDict, total=False):
     """
 
 
+class PayStatementEmployerContributionAttributes(TypedDict, total=False):
+    metadata: PayStatementEmployerContributionAttributesMetadata
+
+
 class PayStatementEmployerContribution(TypedDict, total=False):
     amount: Optional[int]
     """The contribution amount in cents."""
@@ -131,7 +147,7 @@ class PayStatementEmployerContribution(TypedDict, total=False):
     """Type of benefit."""
 
 
-class PayStatementTaxAttributes(TypedDict, total=False):
+class PayStatementTaxAttributesMetadata(TypedDict, total=False):
     metadata: Dict[str, object]
     """The metadata to be attached to the entity by existing rules.
 
@@ -140,6 +156,10 @@ class PayStatementTaxAttributes(TypedDict, total=False):
     """
 
 
+class PayStatementTaxAttributes(TypedDict, total=False):
+    metadata: PayStatementTaxAttributesMetadata
+
+
 class PayStatementTax(TypedDict, total=False):
     amount: Optional[int]
     """The tax amount in cents."""
diff --git a/tests/api_resources/sandbox/test_payment.py b/tests/api_resources/sandbox/test_payment.py
index 0330db40..3b845874 100644
--- a/tests/api_resources/sandbox/test_payment.py
+++ b/tests/api_resources/sandbox/test_payment.py
@@ -31,7 +31,7 @@ def test_method_create_with_all_params(self, client: Finch) -> None:
                     "earnings": [
                         {
                             "amount": 0,
-                            "attributes": {"metadata": {"foo": "bar"}},
+                            "attributes": {"metadata": {"metadata": {"foo": "bar"}}},
                             "currency": "currency",
                             "hours": 0,
                             "name": "name",
@@ -40,10 +40,10 @@ def test_method_create_with_all_params(self, client: Finch) -> None:
                     ],
                     "employee_deductions": [
                         {
-                            "amount": 0,
-                            "attributes": {"metadata": {"foo": "bar"}},
-                            "currency": "currency",
-                            "name": "name",
+                            "amount": 2000,
+                            "attributes": {"metadata": {"metadata": {"foo": "bar"}}},
+                            "currency": "usd",
+                            "name": "401k test",
                             "pre_tax": True,
                             "type": "401k",
                         }
@@ -51,7 +51,7 @@ def test_method_create_with_all_params(self, client: Finch) -> None:
                     "employer_contributions": [
                         {
                             "amount": 0,
-                            "attributes": {"metadata": {"foo": "bar"}},
+                            "attributes": {"metadata": {"metadata": {"foo": "bar"}}},
                             "currency": "currency",
                             "name": "name",
                             "type": "401k",
@@ -61,7 +61,7 @@ def test_method_create_with_all_params(self, client: Finch) -> None:
                         "amount": 0,
                         "currency": "currency",
                     },
-                    "individual_id": "individual_id",
+                    "individual_id": "b2338cfb-472f-4f72-9faa-e028c083144a",
                     "net_pay": {
                         "amount": 0,
                         "currency": "currency",
@@ -70,7 +70,7 @@ def test_method_create_with_all_params(self, client: Finch) -> None:
                     "taxes": [
                         {
                             "amount": 0,
-                            "attributes": {"metadata": {"foo": "bar"}},
+                            "attributes": {"metadata": {"metadata": {"foo": "bar"}}},
                             "currency": "currency",
                             "employer": True,
                             "name": "name",
@@ -123,7 +123,7 @@ async def test_method_create_with_all_params(self, async_client: AsyncFinch) ->
                     "earnings": [
                         {
                             "amount": 0,
-                            "attributes": {"metadata": {"foo": "bar"}},
+                            "attributes": {"metadata": {"metadata": {"foo": "bar"}}},
                             "currency": "currency",
                             "hours": 0,
                             "name": "name",
@@ -132,10 +132,10 @@ async def test_method_create_with_all_params(self, async_client: AsyncFinch) ->
                     ],
                     "employee_deductions": [
                         {
-                            "amount": 0,
-                            "attributes": {"metadata": {"foo": "bar"}},
-                            "currency": "currency",
-                            "name": "name",
+                            "amount": 2000,
+                            "attributes": {"metadata": {"metadata": {"foo": "bar"}}},
+                            "currency": "usd",
+                            "name": "401k test",
                             "pre_tax": True,
                             "type": "401k",
                         }
@@ -143,7 +143,7 @@ async def test_method_create_with_all_params(self, async_client: AsyncFinch) ->
                     "employer_contributions": [
                         {
                             "amount": 0,
-                            "attributes": {"metadata": {"foo": "bar"}},
+                            "attributes": {"metadata": {"metadata": {"foo": "bar"}}},
                             "currency": "currency",
                             "name": "name",
                             "type": "401k",
@@ -153,7 +153,7 @@ async def test_method_create_with_all_params(self, async_client: AsyncFinch) ->
                         "amount": 0,
                         "currency": "currency",
                     },
-                    "individual_id": "individual_id",
+                    "individual_id": "b2338cfb-472f-4f72-9faa-e028c083144a",
                     "net_pay": {
                         "amount": 0,
                         "currency": "currency",
@@ -162,7 +162,7 @@ async def test_method_create_with_all_params(self, async_client: AsyncFinch) ->
                     "taxes": [
                         {
                             "amount": 0,
-                            "attributes": {"metadata": {"foo": "bar"}},
+                            "attributes": {"metadata": {"metadata": {"foo": "bar"}}},
                             "currency": "currency",
                             "employer": True,
                             "name": "name",