diff --git a/index.ts b/index.ts
index 054d3a4b..054ecd3b 100644
--- a/index.ts
+++ b/index.ts
@@ -48,6 +48,7 @@ import { resolveOpenClawStateDir } from "./src/utils/openclaw-state-dir.js";
 export {
   GatewayMemoryClient,
   GatewayMemoryClientError,
+  GatewayMemoryClientParseError,
   createGatewayPlatformAdapter,
 } from "./src/adapters/gateway-client/index.js";
 export type {
diff --git a/src/adapters/gateway-client/gateway-client.test.ts b/src/adapters/gateway-client/gateway-client.test.ts
index f8e5efa8..1820d699 100644
--- a/src/adapters/gateway-client/gateway-client.test.ts
+++ b/src/adapters/gateway-client/gateway-client.test.ts
@@ -2,6 +2,7 @@ import { describe, expect, it } from "vitest";
 import {
   GatewayMemoryClient,
   GatewayMemoryClientError,
+  GatewayMemoryClientParseError,
   createGatewayPlatformAdapter,
 } from "./index.js";
 
@@ -58,6 +59,20 @@ describe("GatewayMemoryClient", () => {
       responseBody: "bad query",
     } satisfies Partial<GatewayMemoryClientError>);
   });
+
+  it("surfaces malformed success responses with request context", async () => {
+    const client = new GatewayMemoryClient({
+      baseUrl: "http://127.0.0.1:8420",
+      fetchImpl: async () => new Response("not-json", { status: 200 }),
+    });
+
+    await expect(client.health()).rejects.toMatchObject({
+      name: "GatewayMemoryClientParseError",
+      status: 200,
+      path: "/health",
+      responseBody: "not-json",
+    } satisfies Partial<GatewayMemoryClientParseError>);
+  });
 });
 
 describe("createGatewayPlatformAdapter", () => {
diff --git a/src/adapters/gateway-client/index.ts b/src/adapters/gateway-client/index.ts
index 1dfbdc83..179a7a09 100644
--- a/src/adapters/gateway-client/index.ts
+++ b/src/adapters/gateway-client/index.ts
@@ -79,6 +79,20 @@ export class GatewayMemoryClientError extends Error {
   }
 }
 
+export class GatewayMemoryClientParseError extends Error {
+  readonly status: number;
+  readonly path: string;
+  readonly responseBody: string;
+
+  constructor(path: string, status: number, responseBody: string) {
+    super(`Gateway response was not valid JSON: ${path} returned ${status}`);
+    this.name = "GatewayMemoryClientParseError";
+    this.path = path;
+    this.status = status;
+    this.responseBody = responseBody;
+  }
+}
+
 export class GatewayMemoryClient {
   private readonly baseUrl: string;
   private readonly apiKey: string | undefined;
@@ -136,7 +150,11 @@ export class GatewayMemoryClient {
       if (!response.ok) {
         throw new GatewayMemoryClientError(path, response.status, text);
       }
-      return (text ? JSON.parse(text) : {}) as T;
+      try {
+        return (text ? JSON.parse(text) : {}) as T;
+      } catch {
+        throw new GatewayMemoryClientParseError(path, response.status, text);
+      }
     } finally {
       clearTimeout(timer);
     }
diff --git a/src/adapters/index.ts b/src/adapters/index.ts
index a0f3961c..f22a6bad 100644
--- a/src/adapters/index.ts
+++ b/src/adapters/index.ts
@@ -23,6 +23,7 @@ export type { StandaloneHostAdapterOptions, StandaloneLLMConfig, StandaloneLLMRu
 export {
   GatewayMemoryClient,
   GatewayMemoryClientError,
+  GatewayMemoryClientParseError,
   createGatewayPlatformAdapter,
 } from "./gateway-client/index.js";
 export type {