diff --git a/CHANGELOG.md b/CHANGELOG.md
index 626e0e8082..8b4e8aee84 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,6 +34,7 @@
 
 ### 🔧 Bug Fixes
 
+- **fix(home topology): restore live in-flight request pulse** ([#3507]): the animated "pulse" edges in the home Provider Topology panel went dead after PR #3401 unified request visibility, because `activeRequests` was hardcoded to `[]`. Re-wired to `useLiveRequests()` (the existing WebSocket hook on port 20129) so that every pending/running request drives the animation in real time. A pure `selectActiveRequests` mapping helper was extracted to `home/topologyUtils.ts` with 5 unit tests.
 - **Electron desktop**: launch the peer-stamping `server-ws.mjs` entrypoint so local-only routes (AgentBridge, MCP, services) no longer return 403 LOCAL_ONLY (#3386)
 - **Provider Topology**: stop flagging healthy providers as errored based on stale historical failures; use current request status (#3619)
 - **OpenCode Free**: fetch the live model catalog from the provider's `modelsUrl` for the no-auth model picker instead of serving a stale hardcoded list (#3611)
diff --git a/src/app/(dashboard)/dashboard/HomePageClient.tsx b/src/app/(dashboard)/dashboard/HomePageClient.tsx
index 5e40a2d73c..f6d3fa56bb 100644
--- a/src/app/(dashboard)/dashboard/HomePageClient.tsx
+++ b/src/app/(dashboard)/dashboard/HomePageClient.tsx
@@ -13,6 +13,8 @@ import { useNotificationStore } from "@/store/notificationStore";
 import { copyToClipboard } from "@/shared/utils/clipboard";
 import { getProviderDisplayLabel } from "@/shared/utils/providerDisplayLabel";
 import { useIsElectron, useOpenExternal } from "@/shared/hooks/useElectron";
+import { useLiveRequests } from "@/hooks/useLiveDashboard";
+import { selectActiveRequests } from "../home/topologyUtils";
 
 const ProviderTopology = dynamic(() => import("../home/ProviderTopology"), { ssr: false });
 const ProviderQuotaWidget = dynamic(() => import("../home/ProviderQuotaWidget"), { ssr: false });
@@ -114,6 +116,9 @@ export default function HomePageClient({ machineId }: HomePageClientProps) {
     Array<{ id?: string; prefix?: string; name?: string }>
   >([]);
 
+  // Live in-flight requests for Provider Topology pulse animation (#3507)
+  const { activeRequests: liveActiveRequests } = useLiveRequests();
+
   const [versionInfo, setVersionInfo] = useState<VersionInfo | null>(null);
   const [updating, setUpdating] = useState(false);
 
@@ -1178,7 +1183,7 @@ export default function HomePageClient({ machineId }: HomePageClientProps) {
           </div>
           <ProviderTopology
             providers={topologyProviders}
-            activeRequests={[]}
+            activeRequests={selectActiveRequests(liveActiveRequests)}
             lastProvider={lastProvider}
             errorProvider={errorProvider}
           />
diff --git a/src/app/(dashboard)/home/topologyUtils.ts b/src/app/(dashboard)/home/topologyUtils.ts
new file mode 100644
index 0000000000..ef731f72f8
--- /dev/null
+++ b/src/app/(dashboard)/home/topologyUtils.ts
@@ -0,0 +1,27 @@
+/**
+ * Pure helpers for the home-page Provider Topology panel.
+ */
+
+/** Minimal shape expected by <ProviderTopology activeRequests={...}> */
+export interface TopologyActiveRequest {
+  provider: string;
+  model: string;
+}
+
+/** Minimal in-flight request shape (subset of LiveRequest from useLiveRequests) */
+interface InFlightRequest {
+  provider: string;
+  model: string;
+}
+
+/**
+ * Maps an array of in-flight LiveRequest entries to the flat
+ * { provider, model }[] shape consumed by <ProviderTopology>.
+ *
+ * The input is expected to contain only pending/running entries — the
+ * useLiveRequests hook already filters out completed and failed requests
+ * before exposing them via `activeRequests`.
+ */
+export function selectActiveRequests(requests: InFlightRequest[]): TopologyActiveRequest[] {
+  return requests.map(({ provider, model }) => ({ provider, model }));
+}
diff --git a/tests/unit/topology-active-requests-3507.test.ts b/tests/unit/topology-active-requests-3507.test.ts
new file mode 100644
index 0000000000..17de320151
--- /dev/null
+++ b/tests/unit/topology-active-requests-3507.test.ts
@@ -0,0 +1,72 @@
+/**
+ * #3507 — the home Provider Topology pulse was dead because activeRequests was
+ * hardcoded to [].  Fix: map the in-flight LiveRequest entries (pending/running)
+ * from useLiveRequests to the { provider, model }[] shape expected by
+ * <ProviderTopology>.
+ *
+ * selectActiveRequests() is a pure mapping function — no React required.
+ */
+import test from "node:test";
+import assert from "node:assert/strict";
+
+import { selectActiveRequests } from "../../src/app/(dashboard)/home/topologyUtils.ts";
+
+// ── helpers ──────────────────────────────────────────────────────────────────
+
+function makeRequest(
+  overrides: Partial<{
+    id: string;
+    model: string;
+    provider: string;
+    status: "pending" | "running" | "success" | "error";
+  }>
+) {
+  return {
+    id: "req-1",
+    model: "gpt-4",
+    provider: "openai",
+    timestamp: Date.now(),
+    status: "pending" as const,
+    ...overrides,
+  };
+}
+
+// ── tests ─────────────────────────────────────────────────────────────────────
+
+test("selectActiveRequests: maps pending requests to {provider, model}", () => {
+  const input = [makeRequest({ id: "a", provider: "anthropic", model: "claude-opus-4", status: "pending" })];
+  const result = selectActiveRequests(input);
+  assert.deepEqual(result, [{ provider: "anthropic", model: "claude-opus-4" }]);
+});
+
+test("selectActiveRequests: maps running requests to {provider, model}", () => {
+  const input = [makeRequest({ id: "b", provider: "openai", model: "gpt-4o", status: "running" })];
+  const result = selectActiveRequests(input);
+  assert.deepEqual(result, [{ provider: "openai", model: "gpt-4o" }]);
+});
+
+test("selectActiveRequests: returns empty array for empty input", () => {
+  assert.deepEqual(selectActiveRequests([]), []);
+});
+
+test("selectActiveRequests: maps multiple concurrent in-flight requests", () => {
+  const input = [
+    makeRequest({ id: "c1", provider: "anthropic", model: "claude-sonnet-4", status: "pending" }),
+    makeRequest({ id: "c2", provider: "gemini", model: "gemini-2.5-pro", status: "running" }),
+  ];
+  const result = selectActiveRequests(input);
+  assert.deepEqual(result, [
+    { provider: "anthropic", model: "claude-sonnet-4" },
+    { provider: "gemini", model: "gemini-2.5-pro" },
+  ]);
+});
+
+test("selectActiveRequests: only extracts provider and model fields (not id/timestamp/etc)", () => {
+  const input = [makeRequest({ id: "d", provider: "groq", model: "llama3-70b", status: "running" })];
+  const result = selectActiveRequests(input);
+  assert.equal(Object.keys(result[0]).length, 2);
+  assert.ok("provider" in result[0]);
+  assert.ok("model" in result[0]);
+  assert.ok(!("id" in result[0]));
+  assert.ok(!("timestamp" in result[0]));
+});