diff --git a/.changeset/polite-flies-explode.md b/.changeset/polite-flies-explode.md
new file mode 100644
index 00000000000..9daf81da319
--- /dev/null
+++ b/.changeset/polite-flies-explode.md
@@ -0,0 +1,5 @@
+---
+"@smithy/types": minor
+---
+
+transform inputs for env specific type helpers
diff --git a/packages/types/src/transform/client-payload-blob-type-narrow.spec.ts b/packages/types/src/transform/client-payload-blob-type-narrow.spec.ts
index 612b3632505..f348e878d60 100644
--- a/packages/types/src/transform/client-payload-blob-type-narrow.spec.ts
+++ b/packages/types/src/transform/client-payload-blob-type-narrow.spec.ts
@@ -4,9 +4,14 @@ import type { Client } from "../client";
 import type { HttpHandlerOptions } from "../http";
 import type { MetadataBearer } from "../response";
 import type { SdkStream } from "../serde";
+import type {
+  NodeJsRuntimeStreamingBlobPayloadInputTypes,
+  StreamingBlobPayloadInputTypes,
+} from "../streaming-payload/streaming-blob-payload-input-types";
 import type { StreamingBlobPayloadOutputTypes } from "../streaming-payload/streaming-blob-payload-output-types";
 import type { BrowserClient, NodeJsClient } from "./client-payload-blob-type-narrow";
 import type { Exact } from "./exact";
+import type { Transform } from "./type-transform";
 
 // it should narrow operational methods and the generic send method
 
@@ -14,6 +19,7 @@ type MyInput = Partial<{
   a: boolean;
   b: boolean | number;
   c: boolean | number | string;
+  body?: StreamingBlobPayloadInputTypes;
 }>;
 
 type MyOutput = {
@@ -37,6 +43,19 @@ interface MyClient extends Client<MyInput, MyOutput, MyConfig> {
   putObject(args: MyInput, options: HttpHandlerOptions, cb: (err: any, data?: MyOutput) => void): void;
 }
 
+{
+  interface NodeJsMyClient extends NodeJsClient<MyClient> {}
+  const mockClient = (null as unknown) as NodeJsMyClient;
+  type Input = Parameters<typeof mockClient.getObject>[0];
+
+  const assert1: Exact<
+    Input,
+    Transform<MyInput, StreamingBlobPayloadInputTypes | undefined, NodeJsRuntimeStreamingBlobPayloadInputTypes>
+  > = true as const;
+
+  const assert2: Exact<Input, MyInput> = false as const;
+}
+
 {
   interface NodeJsMyClient extends NodeJsClient<MyClient> {}
   const mockClient = (null as unknown) as NodeJsMyClient;
diff --git a/packages/types/src/transform/client-payload-blob-type-narrow.ts b/packages/types/src/transform/client-payload-blob-type-narrow.ts
index e271ccbdb92..60e97453afa 100644
--- a/packages/types/src/transform/client-payload-blob-type-narrow.ts
+++ b/packages/types/src/transform/client-payload-blob-type-narrow.ts
@@ -4,7 +4,13 @@ import type { ClientHttp2Stream } from "http2";
 import type { InvokeFunction, InvokeMethod } from "../client";
 import type { HttpHandlerOptions } from "../http";
 import type { SdkStream } from "../serde";
+import type {
+  BrowserRuntimeStreamingBlobPayloadInputTypes,
+  NodeJsRuntimeStreamingBlobPayloadInputTypes,
+  StreamingBlobPayloadInputTypes,
+} from "../streaming-payload/streaming-blob-payload-input-types";
 import type { NarrowedInvokeFunction, NarrowedInvokeMethod } from "./client-method-transforms";
+import type { Transform } from "./type-transform";
 
 /**
  * @public
@@ -20,7 +26,8 @@ import type { NarrowedInvokeFunction, NarrowedInvokeMethod } from "./client-meth
  * const client = new YourClient({}) as NodeJsClient<YourClient>;
  * ```
  */
-export type NodeJsClient<ClientType extends object> = NarrowPayloadBlobOutputType<
+export type NodeJsClient<ClientType extends object> = NarrowPayloadBlobTypes<
+  NodeJsRuntimeStreamingBlobPayloadInputTypes,
   SdkStream<IncomingMessage>,
   ClientType
 >;
@@ -28,7 +35,8 @@ export type NodeJsClient<ClientType extends object> = NarrowPayloadBlobOutputTyp
  * @public
  * Variant of NodeJsClient for node:http2.
  */
-export type NodeJsHttp2Client<ClientType extends object> = NarrowPayloadBlobOutputType<
+export type NodeJsHttp2Client<ClientType extends object> = NarrowPayloadBlobTypes<
+  NodeJsRuntimeStreamingBlobPayloadInputTypes,
   SdkStream<ClientHttp2Stream>,
   ClientType
 >;
@@ -47,7 +55,8 @@ export type NodeJsHttp2Client<ClientType extends object> = NarrowPayloadBlobOutp
  * const client = new YourClient({}) as BrowserClient<YourClient>;
  * ```
  */
-export type BrowserClient<ClientType extends object> = NarrowPayloadBlobOutputType<
+export type BrowserClient<ClientType extends object> = NarrowPayloadBlobTypes<
+  BrowserRuntimeStreamingBlobPayloadInputTypes,
   SdkStream<ReadableStream>,
   ClientType
 >;
@@ -56,7 +65,8 @@ export type BrowserClient<ClientType extends object> = NarrowPayloadBlobOutputTy
  *
  * Variant of BrowserClient for XMLHttpRequest.
  */
-export type BrowserXhrClient<ClientType extends object> = NarrowPayloadBlobOutputType<
+export type BrowserXhrClient<ClientType extends object> = NarrowPayloadBlobTypes<
+  BrowserRuntimeStreamingBlobPayloadInputTypes,
   SdkStream<ReadableStream | Blob>,
   ClientType
 >;
@@ -64,6 +74,8 @@ export type BrowserXhrClient<ClientType extends object> = NarrowPayloadBlobOutpu
 /**
  * @public
  *
+ * @deprecated use NarrowPayloadBlobTypes<I, O, ClientType>.
+ *
  * Narrow a given Client's blob payload outputs to the given type T.
  */
 export type NarrowPayloadBlobOutputType<T, ClientType extends object> = {
@@ -75,3 +87,29 @@ export type NarrowPayloadBlobOutputType<T, ClientType extends object> = {
     ? NarrowedInvokeMethod<T, HttpHandlerOptions, FunctionInputTypes, FunctionOutputTypes>
     : ClientType[key];
 };
+
+/**
+ * @public
+ *
+ * Narrow a Client's blob payload input and output types to I and O.
+ */
+export type NarrowPayloadBlobTypes<I, O, ClientType extends object> = {
+  [key in keyof ClientType]: [ClientType[key]] extends [
+    InvokeFunction<infer InputTypes, infer OutputTypes, infer ConfigType>
+  ]
+    ? NarrowedInvokeFunction<
+        O,
+        HttpHandlerOptions,
+        Transform<InputTypes, StreamingBlobPayloadInputTypes | undefined, I>,
+        OutputTypes,
+        ConfigType
+      >
+    : [ClientType[key]] extends [InvokeMethod<infer FunctionInputTypes, infer FunctionOutputTypes>]
+    ? NarrowedInvokeMethod<
+        O,
+        HttpHandlerOptions,
+        Transform<FunctionInputTypes, StreamingBlobPayloadInputTypes | undefined, I>,
+        FunctionOutputTypes
+      >
+    : ClientType[key];
+};