diff --git a/src/memory/batch-http.test.ts b/src/memory/batch-http.test.ts
new file mode 100644
index 000000000..d70cdf292
--- /dev/null
+++ b/src/memory/batch-http.test.ts
@@ -0,0 +1,78 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { retryAsync } from "../infra/retry.js";
+import { postJsonWithRetry } from "./batch-http.js";
+import { postJson } from "./post-json.js";
+
+vi.mock("../infra/retry.js", () => ({
+  retryAsync: vi.fn(async (run: () => Promise<unknown>) => await run()),
+}));
+
+vi.mock("./post-json.js", () => ({
+  postJson: vi.fn(),
+}));
+
+describe("postJsonWithRetry", () => {
+  const retryAsyncMock = vi.mocked(retryAsync);
+  const postJsonMock = vi.mocked(postJson);
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("posts JSON and returns parsed response payload", async () => {
+    postJsonMock.mockImplementationOnce(async (params) => {
+      return await params.parse({ ok: true, ids: [1, 2] });
+    });
+
+    const result = await postJsonWithRetry<{ ok: boolean; ids: number[] }>({
+      url: "https://memory.example/v1/batch",
+      headers: { Authorization: "Bearer test" },
+      body: { chunks: ["a", "b"] },
+      errorPrefix: "memory batch failed",
+    });
+
+    expect(result).toEqual({ ok: true, ids: [1, 2] });
+    expect(postJsonMock).toHaveBeenCalledWith(
+      expect.objectContaining({
+        url: "https://memory.example/v1/batch",
+        headers: { Authorization: "Bearer test" },
+        body: { chunks: ["a", "b"] },
+        errorPrefix: "memory batch failed",
+        attachStatus: true,
+      }),
+    );
+
+    const retryOptions = retryAsyncMock.mock.calls[0]?.[1] as
+      | {
+          attempts: number;
+          minDelayMs: number;
+          maxDelayMs: number;
+          shouldRetry: (err: unknown) => boolean;
+        }
+      | undefined;
+    expect(retryOptions?.attempts).toBe(3);
+    expect(retryOptions?.minDelayMs).toBe(300);
+    expect(retryOptions?.maxDelayMs).toBe(2000);
+    expect(retryOptions?.shouldRetry({ status: 429 })).toBe(true);
+    expect(retryOptions?.shouldRetry({ status: 503 })).toBe(true);
+    expect(retryOptions?.shouldRetry({ status: 400 })).toBe(false);
+  });
+
+  it("attaches status to non-ok errors", async () => {
+    postJsonMock.mockRejectedValueOnce(
+      Object.assign(new Error("memory batch failed: 503 backend down"), { status: 503 }),
+    );
+
+    await expect(
+      postJsonWithRetry({
+        url: "https://memory.example/v1/batch",
+        headers: {},
+        body: { chunks: [] },
+        errorPrefix: "memory batch failed",
+      }),
+    ).rejects.toMatchObject({
+      message: expect.stringContaining("memory batch failed: 503 backend down"),
+      status: 503,
+    });
+  });
+});
diff --git a/src/memory/batch-http.ts b/src/memory/batch-http.ts
index de7ad23f4..0610c62e5 100644
--- a/src/memory/batch-http.ts
+++ b/src/memory/batch-http.ts
@@ -1,6 +1,6 @@
 import type { SsrFPolicy } from "../infra/net/ssrf.js";
 import { retryAsync } from "../infra/retry.js";
-import { withRemoteHttpResponse } from "./remote-http.js";
+import { postJson } from "./post-json.js";
 
 export async function postJsonWithRetry<T>(params: {
   url: string;
@@ -11,25 +11,14 @@ export async function postJsonWithRetry<T>(params: {
 }): Promise<T> {
   return await retryAsync(
     async () => {
-      return await withRemoteHttpResponse({
+      return await postJson<T>({
         url: params.url,
+        headers: params.headers,
         ssrfPolicy: params.ssrfPolicy,
-        init: {
-          method: "POST",
-          headers: params.headers,
-          body: JSON.stringify(params.body),
-        },
-        onResponse: async (res) => {
-          if (!res.ok) {
-            const text = await res.text();
-            const err = new Error(`${params.errorPrefix}: ${res.status} ${text}`) as Error & {
-              status?: number;
-            };
-            err.status = res.status;
-            throw err;
-          }
-          return (await res.json()) as T;
-        },
+        body: params.body,
+        errorPrefix: params.errorPrefix,
+        attachStatus: true,
+        parse: async (payload) => payload as T,
       });
     },
     {
diff --git a/src/memory/embeddings-remote-fetch.test.ts b/src/memory/embeddings-remote-fetch.test.ts
new file mode 100644
index 000000000..bcef98faf
--- /dev/null
+++ b/src/memory/embeddings-remote-fetch.test.ts
@@ -0,0 +1,53 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { fetchRemoteEmbeddingVectors } from "./embeddings-remote-fetch.js";
+import { postJson } from "./post-json.js";
+
+vi.mock("./post-json.js", () => ({
+  postJson: vi.fn(),
+}));
+
+describe("fetchRemoteEmbeddingVectors", () => {
+  const postJsonMock = vi.mocked(postJson);
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("maps remote embedding response data to vectors", async () => {
+    postJsonMock.mockImplementationOnce(async (params) => {
+      return await params.parse({
+        data: [{ embedding: [0.1, 0.2] }, {}, { embedding: [0.3] }],
+      });
+    });
+
+    const vectors = await fetchRemoteEmbeddingVectors({
+      url: "https://memory.example/v1/embeddings",
+      headers: { Authorization: "Bearer test" },
+      body: { input: ["one", "two", "three"] },
+      errorPrefix: "embedding fetch failed",
+    });
+
+    expect(vectors).toEqual([[0.1, 0.2], [], [0.3]]);
+    expect(postJsonMock).toHaveBeenCalledWith(
+      expect.objectContaining({
+        url: "https://memory.example/v1/embeddings",
+        headers: { Authorization: "Bearer test" },
+        body: { input: ["one", "two", "three"] },
+        errorPrefix: "embedding fetch failed",
+      }),
+    );
+  });
+
+  it("throws a status-rich error on non-ok responses", async () => {
+    postJsonMock.mockRejectedValueOnce(new Error("embedding fetch failed: 403 forbidden"));
+
+    await expect(
+      fetchRemoteEmbeddingVectors({
+        url: "https://memory.example/v1/embeddings",
+        headers: {},
+        body: { input: ["one"] },
+        errorPrefix: "embedding fetch failed",
+      }),
+    ).rejects.toThrow("embedding fetch failed: 403 forbidden");
+  });
+});
diff --git a/src/memory/embeddings-remote-fetch.ts b/src/memory/embeddings-remote-fetch.ts
index af8f5b33a..538806e8f 100644
--- a/src/memory/embeddings-remote-fetch.ts
+++ b/src/memory/embeddings-remote-fetch.ts
@@ -1,5 +1,5 @@
 import type { SsrFPolicy } from "../infra/net/ssrf.js";
-import { withRemoteHttpResponse } from "./remote-http.js";
+import { postJson } from "./post-json.js";
 
 export async function fetchRemoteEmbeddingVectors(params: {
   url: string;
@@ -8,23 +8,17 @@ export async function fetchRemoteEmbeddingVectors(params: {
   body: unknown;
   errorPrefix: string;
 }): Promise<number[][]> {
-  return await withRemoteHttpResponse({
+  return await postJson({
     url: params.url,
+    headers: params.headers,
     ssrfPolicy: params.ssrfPolicy,
-    init: {
-      method: "POST",
-      headers: params.headers,
-      body: JSON.stringify(params.body),
-    },
-    onResponse: async (res) => {
-      if (!res.ok) {
-        const text = await res.text();
-        throw new Error(`${params.errorPrefix}: ${res.status} ${text}`);
-      }
-      const payload = (await res.json()) as {
+    body: params.body,
+    errorPrefix: params.errorPrefix,
+    parse: (payload) => {
+      const typedPayload = payload as {
         data?: Array<{ embedding?: number[] }>;
       };
-      const data = payload.data ?? [];
+      const data = typedPayload.data ?? [];
       return data.map((entry) => entry.embedding ?? []);
     },
   });
diff --git a/src/memory/manager.vector-dedupe.test.ts b/src/memory/manager.vector-dedupe.test.ts
index 699f6c67e..fcd21a884 100644
--- a/src/memory/manager.vector-dedupe.test.ts
+++ b/src/memory/manager.vector-dedupe.test.ts
@@ -26,18 +26,27 @@ describe("memory vector dedupe", () => {
   let indexPath: string;
   let manager: MemoryIndexManager | null = null;
 
+  async function seedMemoryWorkspace(rootDir: string) {
+    await fs.mkdir(path.join(rootDir, "memory"));
+    await fs.writeFile(path.join(rootDir, "MEMORY.md"), "Hello memory.");
+  }
+
+  async function closeManagerIfOpen() {
+    if (!manager) {
+      return;
+    }
+    await manager.close();
+    manager = null;
+  }
+
   beforeEach(async () => {
     workspaceDir = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-mem-"));
     indexPath = path.join(workspaceDir, "index.sqlite");
-    await fs.mkdir(path.join(workspaceDir, "memory"));
-    await fs.writeFile(path.join(workspaceDir, "MEMORY.md"), "Hello memory.");
+    await seedMemoryWorkspace(workspaceDir);
   });
 
   afterEach(async () => {
-    if (manager) {
-      await manager.close();
-      manager = null;
-    }
+    await closeManagerIfOpen();
     await fs.rm(workspaceDir, { recursive: true, force: true });
   });
 
diff --git a/src/memory/post-json.test.ts b/src/memory/post-json.test.ts
new file mode 100644
index 000000000..7e1aaf27c
--- /dev/null
+++ b/src/memory/post-json.test.ts
@@ -0,0 +1,53 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { postJson } from "./post-json.js";
+import { withRemoteHttpResponse } from "./remote-http.js";
+
+vi.mock("./remote-http.js", () => ({
+  withRemoteHttpResponse: vi.fn(),
+}));
+
+describe("postJson", () => {
+  const remoteHttpMock = vi.mocked(withRemoteHttpResponse);
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("parses JSON payload on successful response", async () => {
+    remoteHttpMock.mockImplementationOnce(async (params) => {
+      return await params.onResponse(
+        new Response(JSON.stringify({ data: [{ embedding: [1, 2] }] }), { status: 200 }),
+      );
+    });
+
+    const result = await postJson({
+      url: "https://memory.example/v1/post",
+      headers: { Authorization: "Bearer test" },
+      body: { input: ["x"] },
+      errorPrefix: "post failed",
+      parse: (payload) => payload,
+    });
+
+    expect(result).toEqual({ data: [{ embedding: [1, 2] }] });
+  });
+
+  it("attaches status to thrown error when requested", async () => {
+    remoteHttpMock.mockImplementationOnce(async (params) => {
+      return await params.onResponse(new Response("bad gateway", { status: 502 }));
+    });
+
+    await expect(
+      postJson({
+        url: "https://memory.example/v1/post",
+        headers: {},
+        body: {},
+        errorPrefix: "post failed",
+        attachStatus: true,
+        parse: () => ({}),
+      }),
+    ).rejects.toMatchObject({
+      message: expect.stringContaining("post failed: 502 bad gateway"),
+      status: 502,
+    });
+  });
+});
diff --git a/src/memory/post-json.ts b/src/memory/post-json.ts
new file mode 100644
index 000000000..5251fdab4
--- /dev/null
+++ b/src/memory/post-json.ts
@@ -0,0 +1,35 @@
+import type { SsrFPolicy } from "../infra/net/ssrf.js";
+import { withRemoteHttpResponse } from "./remote-http.js";
+
+export async function postJson<T>(params: {
+  url: string;
+  headers: Record<string, string>;
+  ssrfPolicy?: SsrFPolicy;
+  body: unknown;
+  errorPrefix: string;
+  attachStatus?: boolean;
+  parse: (payload: unknown) => T | Promise<T>;
+}): Promise<T> {
+  return await withRemoteHttpResponse({
+    url: params.url,
+    ssrfPolicy: params.ssrfPolicy,
+    init: {
+      method: "POST",
+      headers: params.headers,
+      body: JSON.stringify(params.body),
+    },
+    onResponse: async (res) => {
+      if (!res.ok) {
+        const text = await res.text();
+        const err = new Error(`${params.errorPrefix}: ${res.status} ${text}`) as Error & {
+          status?: number;
+        };
+        if (params.attachStatus) {
+          err.status = res.status;
+        }
+        throw err;
+      }
+      return await params.parse(await res.json());
+    },
+  });
+}