diff --git a/mantis/blackbox/main.py b/mantis/blackbox/main.py
index cbb32686..40e96535 100644
--- a/mantis/blackbox/main.py
+++ b/mantis/blackbox/main.py
@@ -63,6 +63,7 @@ def simulator_router(input: Input[str, str] = Depends()) -> list[SingleInputAsse
     """_summary_
     Given input, find and return route.
     """
+    
     raw_data = get_remote_data()
     cvm_data = ExtendedCvmRegistry.from_raw(
         raw_data.cvm_registry,
@@ -70,12 +71,13 @@ def simulator_router(input: Input[str, str] = Depends()) -> list[SingleInputAsse
         raw_data.cosmos_chains.chains,
         raw_data.osmosis_pools,
     )
-
+    input : Input[str, int] = Input[str, int](**input.model_dump())
     routes = solve(input, cvm_data)
+    routes: list[SingleInputAssetCvmRoute[str, str]] = [SingleInputAssetCvmRoute[str, str](**route.model_dump()) for route in routes]
     return routes
 
 
-def solve(original_input: Input, cvm_data: ExtendedCvmRegistry) -> list[SingleInputAssetCvmRoute]:
+def solve(original_input: Input, cvm_data: ExtendedCvmRegistry) -> list[SingleInputAssetCvmRoute[str, int]]:
     ctx = Ctx()
     ctx.max_depth_of_route = 6
     original_data = for_simulation(cvm_data, {})
diff --git a/mantis/simulation/routers/data.py b/mantis/simulation/routers/data.py
index 1987873a..b5747c14 100644
--- a/mantis/simulation/routers/data.py
+++ b/mantis/simulation/routers/data.py
@@ -162,27 +162,13 @@ class AssetTransfers(
         Fixed costs $q_i$ >= 0s
     """
 
-    in_asset_amount: TAmount = Field(
-            # strict=True,
-            json_schema_extra={
-                'title': 'Password',
-                'description': 'Password of the user',
-                'examples': ['123456'],
-            }
-        )
+    in_asset_amount: TAmount
     """
      Tendered amount of token on chain were it is.
      Must be like escrowed amount.
     """
 
-    out_asset_amount: TAmount = Field(
-            # strict=True,
-            json_schema_extra={
-                'title': 'Password',
-                'description': 'Password of the user',
-                'examples': ['123456'],
-            }
-        )
+    out_asset_amount: TAmount
     """
       Expected received amount LAMBDA.
       Must be like liquid amount of this token minted.
@@ -344,6 +330,8 @@ class Input(
 
 
 class Trade(Generic[TId, TAmount]):
+    model_config = ConfigDict(coerce_numbers_to_str=True)
+
     out_asset_amount: TAmount
     """
     Amount to be used out of trade.
@@ -367,7 +355,6 @@ class Spawn(BaseModel, Trade[TId, TAmount], Generic[TId, TAmount]):
     """
     cross chain transfer assets
     """
-
     in_asset_id: TId | None = None
 
     in_asset_amount: TAmount | None = None
@@ -395,6 +382,7 @@ class SingleInputAssetCvmRoute(BaseModel, Trade[TId, TAmount], Generic[TId, TAmo
     """
     always starts with Input asset_id
     """
+    model_config = ConfigDict(coerce_numbers_to_str=True)
 
     next: list[Union[Exchange[TId, TAmount], Spawn[TId, TAmount]]]
 
diff --git a/mantis/simulation/routers/oracles/bforacle.py b/mantis/simulation/routers/oracles/bforacle.py
index 5cc2ac33..72c81524 100644
--- a/mantis/simulation/routers/oracles/bforacle.py
+++ b/mantis/simulation/routers/oracles/bforacle.py
@@ -176,12 +176,11 @@ class BFSolution:
     deltas: list[float]
     routes: list[SingleInputAssetCvmRoute]
 
-
 def route(
     input: Input,
     all_data: AllData,
     ctx: Ctx = Ctx(),
-):
+) -> list[SingleInputAssetCvmRoute[str, int]]:
     """
     Bellman Ford inspired solution.
     The function divides the transaction if several paths (`splits``) and for each path