diff --git a/src/api/resources/mapping/types/GetEnumWeightsRequest.ts b/src/api/resources/mapping/types/GetEnumWeightsRequest.ts
new file mode 100644
index 00000000..e4471d80
--- /dev/null
+++ b/src/api/resources/mapping/types/GetEnumWeightsRequest.ts
@@ -0,0 +1,14 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+export interface GetEnumWeightsRequest {
+    /** Source field key */
+    sourceField: string;
+    /** Source field values */
+    sourceValues: string[];
+    /** Destination field key */
+    destinationField: string;
+    /** Destination field values */
+    destinationValues: string[];
+}
diff --git a/src/api/resources/mapping/types/GetFieldWeightsRequest.ts b/src/api/resources/mapping/types/GetFieldWeightsRequest.ts
new file mode 100644
index 00000000..2243384c
--- /dev/null
+++ b/src/api/resources/mapping/types/GetFieldWeightsRequest.ts
@@ -0,0 +1,10 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+export interface GetFieldWeightsRequest {
+    /** Source field keys */
+    sourceFields: string[];
+    /** Destination field keys */
+    destinationFields: string[];
+}
diff --git a/src/api/resources/mapping/types/SourceDestinationWeight.ts b/src/api/resources/mapping/types/SourceDestinationWeight.ts
new file mode 100644
index 00000000..0da0bd1a
--- /dev/null
+++ b/src/api/resources/mapping/types/SourceDestinationWeight.ts
@@ -0,0 +1,12 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+export interface SourceDestinationWeight {
+    /** Source key */
+    source: string;
+    /** Destination key */
+    destination: string;
+    /** Weight of the pair */
+    weight: number;
+}
diff --git a/src/api/resources/mapping/types/SourceDestinationWeights.ts b/src/api/resources/mapping/types/SourceDestinationWeights.ts
new file mode 100644
index 00000000..226608a0
--- /dev/null
+++ b/src/api/resources/mapping/types/SourceDestinationWeights.ts
@@ -0,0 +1,9 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+import * as Flatfile from "../../..";
+
+export interface SourceDestinationWeights {
+    weights: Flatfile.SourceDestinationWeight[];
+}
diff --git a/src/api/resources/mapping/types/SourceDestinationWeightsResponse.ts b/src/api/resources/mapping/types/SourceDestinationWeightsResponse.ts
new file mode 100644
index 00000000..597442d1
--- /dev/null
+++ b/src/api/resources/mapping/types/SourceDestinationWeightsResponse.ts
@@ -0,0 +1,9 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+import * as Flatfile from "../../..";
+
+export interface SourceDestinationWeightsResponse {
+    data: Flatfile.SourceDestinationWeights;
+}
diff --git a/src/api/resources/mapping/types/index.ts b/src/api/resources/mapping/types/index.ts
index e680b72e..b1c06a4a 100644
--- a/src/api/resources/mapping/types/index.ts
+++ b/src/api/resources/mapping/types/index.ts
@@ -9,3 +9,8 @@ export * from "./MappingRuleOrConfig";
 export * from "./CreateMappingRulesRequest";
 export * from "./MappingRuleResponse";
 export * from "./MappingRulesResponse";
+export * from "./GetFieldWeightsRequest";
+export * from "./GetEnumWeightsRequest";
+export * from "./SourceDestinationWeight";
+export * from "./SourceDestinationWeights";
+export * from "./SourceDestinationWeightsResponse";
diff --git a/src/serialization/resources/mapping/types/GetEnumWeightsRequest.ts b/src/serialization/resources/mapping/types/GetEnumWeightsRequest.ts
new file mode 100644
index 00000000..e22d038c
--- /dev/null
+++ b/src/serialization/resources/mapping/types/GetEnumWeightsRequest.ts
@@ -0,0 +1,26 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+import * as serializers from "../../..";
+import * as Flatfile from "../../../../api";
+import * as core from "../../../../core";
+
+export const GetEnumWeightsRequest: core.serialization.ObjectSchema<
+    serializers.GetEnumWeightsRequest.Raw,
+    Flatfile.GetEnumWeightsRequest
+> = core.serialization.object({
+    sourceField: core.serialization.string(),
+    sourceValues: core.serialization.list(core.serialization.string()),
+    destinationField: core.serialization.string(),
+    destinationValues: core.serialization.list(core.serialization.string()),
+});
+
+export declare namespace GetEnumWeightsRequest {
+    interface Raw {
+        sourceField: string;
+        sourceValues: string[];
+        destinationField: string;
+        destinationValues: string[];
+    }
+}
diff --git a/src/serialization/resources/mapping/types/GetFieldWeightsRequest.ts b/src/serialization/resources/mapping/types/GetFieldWeightsRequest.ts
new file mode 100644
index 00000000..8b1c7d52
--- /dev/null
+++ b/src/serialization/resources/mapping/types/GetFieldWeightsRequest.ts
@@ -0,0 +1,22 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+import * as serializers from "../../..";
+import * as Flatfile from "../../../../api";
+import * as core from "../../../../core";
+
+export const GetFieldWeightsRequest: core.serialization.ObjectSchema<
+    serializers.GetFieldWeightsRequest.Raw,
+    Flatfile.GetFieldWeightsRequest
+> = core.serialization.object({
+    sourceFields: core.serialization.list(core.serialization.string()),
+    destinationFields: core.serialization.list(core.serialization.string()),
+});
+
+export declare namespace GetFieldWeightsRequest {
+    interface Raw {
+        sourceFields: string[];
+        destinationFields: string[];
+    }
+}
diff --git a/src/serialization/resources/mapping/types/SourceDestinationWeight.ts b/src/serialization/resources/mapping/types/SourceDestinationWeight.ts
new file mode 100644
index 00000000..5a7bb4e9
--- /dev/null
+++ b/src/serialization/resources/mapping/types/SourceDestinationWeight.ts
@@ -0,0 +1,24 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+import * as serializers from "../../..";
+import * as Flatfile from "../../../../api";
+import * as core from "../../../../core";
+
+export const SourceDestinationWeight: core.serialization.ObjectSchema<
+    serializers.SourceDestinationWeight.Raw,
+    Flatfile.SourceDestinationWeight
+> = core.serialization.object({
+    source: core.serialization.string(),
+    destination: core.serialization.string(),
+    weight: core.serialization.number(),
+});
+
+export declare namespace SourceDestinationWeight {
+    interface Raw {
+        source: string;
+        destination: string;
+        weight: number;
+    }
+}
diff --git a/src/serialization/resources/mapping/types/SourceDestinationWeights.ts b/src/serialization/resources/mapping/types/SourceDestinationWeights.ts
new file mode 100644
index 00000000..443eaaf4
--- /dev/null
+++ b/src/serialization/resources/mapping/types/SourceDestinationWeights.ts
@@ -0,0 +1,22 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+import * as serializers from "../../..";
+import * as Flatfile from "../../../../api";
+import * as core from "../../../../core";
+
+export const SourceDestinationWeights: core.serialization.ObjectSchema<
+    serializers.SourceDestinationWeights.Raw,
+    Flatfile.SourceDestinationWeights
+> = core.serialization.object({
+    weights: core.serialization.list(
+        core.serialization.lazyObject(async () => (await import("../../..")).SourceDestinationWeight)
+    ),
+});
+
+export declare namespace SourceDestinationWeights {
+    interface Raw {
+        weights: serializers.SourceDestinationWeight.Raw[];
+    }
+}
diff --git a/src/serialization/resources/mapping/types/SourceDestinationWeightsResponse.ts b/src/serialization/resources/mapping/types/SourceDestinationWeightsResponse.ts
new file mode 100644
index 00000000..4e36fc2f
--- /dev/null
+++ b/src/serialization/resources/mapping/types/SourceDestinationWeightsResponse.ts
@@ -0,0 +1,20 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+
+import * as serializers from "../../..";
+import * as Flatfile from "../../../../api";
+import * as core from "../../../../core";
+
+export const SourceDestinationWeightsResponse: core.serialization.ObjectSchema<
+    serializers.SourceDestinationWeightsResponse.Raw,
+    Flatfile.SourceDestinationWeightsResponse
+> = core.serialization.object({
+    data: core.serialization.lazyObject(async () => (await import("../../..")).SourceDestinationWeights),
+});
+
+export declare namespace SourceDestinationWeightsResponse {
+    interface Raw {
+        data: serializers.SourceDestinationWeights.Raw;
+    }
+}
diff --git a/src/serialization/resources/mapping/types/index.ts b/src/serialization/resources/mapping/types/index.ts
index e680b72e..b1c06a4a 100644
--- a/src/serialization/resources/mapping/types/index.ts
+++ b/src/serialization/resources/mapping/types/index.ts
@@ -9,3 +9,8 @@ export * from "./MappingRuleOrConfig";
 export * from "./CreateMappingRulesRequest";
 export * from "./MappingRuleResponse";
 export * from "./MappingRulesResponse";
+export * from "./GetFieldWeightsRequest";
+export * from "./GetEnumWeightsRequest";
+export * from "./SourceDestinationWeight";
+export * from "./SourceDestinationWeights";
+export * from "./SourceDestinationWeightsResponse";