diff --git a/desktop/src/features/identity-archive/hooks.ts b/desktop/src/features/identity-archive/hooks.ts
index 401803d25..14ad81aea 100644
--- a/desktop/src/features/identity-archive/hooks.ts
+++ b/desktop/src/features/identity-archive/hooks.ts
@@ -1,6 +1,8 @@
 import * as React from "react";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { toast } from "sonner";
 
+import { useMyRelayMembershipQuery } from "@/features/relay-members/hooks";
 import { useIdentityQuery } from "@/shared/api/hooks";
 import {
   archiveIdentity,
@@ -105,3 +107,101 @@ export function useUnarchiveIdentityMutation() {
     },
   });
 }
+
+/** Everything the profile panel needs to gate + drive NIP-IA archival. */
+export type IdentityArchiveActions = {
+  /**
+   * UX gate. `true` when ANY auth path will be accepted by the relay: self
+   * (acting on own pubkey), relay admin/owner, or verified NIP-OA owner of the
+   * viewee. The relay re-verifies on submit — this is purely a render guard.
+   */
+  canArchive: boolean;
+  /**
+   * `true` iff the target is in the relay's latest `kind:13535` snapshot.
+   * `undefined` while the snapshot loads so callers can defer the flair /
+   * Manage section until authority + state are both known.
+   */
+  isArchived: boolean | undefined;
+  /** Either mutation in flight — drives the disabled + "Archiving…" states. */
+  isPending: boolean;
+  /** Submit a `kind:9035` archive request for `pubkey` (toasts on result). */
+  archive: () => void;
+  /** Submit a `kind:9036` unarchive request for `pubkey` (toasts on result). */
+  unarchive: () => void;
+};
+
+/**
+ * Self-contained NIP-IA archive controller for a single `pubkey`. Composes the
+ * three gate queries, owns both mutations, and exposes the archive/unarchive
+ * callbacks with toasts — collapsing what used to be six props drilled through
+ * the profile panel into one hook call.
+ *
+ * Safe to call from multiple components on the same `pubkey`: React Query
+ * dedupes the underlying subscriptions by queryKey, so the only cost is a
+ * second hook invocation, not a second network round-trip.
+ *
+ * Gate composition is verbatim from the old `UserProfilePanel`:
+ * `canArchive = isSelf || isRelayAdminOrOwner || isOaOwnerOfViewee`.
+ */
+export function useIdentityArchive(pubkey: string): IdentityArchiveActions {
+  const identityQuery = useIdentityQuery();
+  const currentPubkey = identityQuery.data?.pubkey;
+
+  const pubkeyLower = pubkey.toLowerCase();
+  const isSelf =
+    currentPubkey !== undefined &&
+    pubkeyLower === currentPubkey.toLowerCase();
+
+  const myMembershipQuery = useMyRelayMembershipQuery();
+  // Skip the kind:0 lookup when viewing yourself — the OA gate is for
+  // archiving *other* identities you own. Also defer until our own identity
+  // resolves so we never fire the lookup against an unknown viewer.
+  const oaOwnerQuery = useOaOwnerQuery(
+    pubkey,
+    currentPubkey !== undefined && !isSelf,
+  );
+
+  const isArchived = useIsIdentityArchived(pubkey);
+
+  const archiveMutation = useArchiveIdentityMutation();
+  const unarchiveMutation = useUnarchiveIdentityMutation();
+
+  const myRole = myMembershipQuery.data?.role;
+  const isRelayAdminOrOwner = myRole === "owner" || myRole === "admin";
+  const isOaOwnerOfViewee = oaOwnerQuery.data?.isMe === true;
+  const canArchive = isSelf || isRelayAdminOrOwner || isOaOwnerOfViewee;
+
+  const archive = React.useCallback(() => {
+    archiveMutation.mutate(
+      { targetPubkey: pubkey },
+      {
+        onSuccess: () => toast.success("Archived on this relay"),
+        onError: (error) =>
+          toast.error(
+            `Archive failed: ${error instanceof Error ? error.message : String(error)}`,
+          ),
+      },
+    );
+  }, [archiveMutation, pubkey]);
+
+  const unarchive = React.useCallback(() => {
+    unarchiveMutation.mutate(
+      { targetPubkey: pubkey },
+      {
+        onSuccess: () => toast.success("Unarchived on this relay"),
+        onError: (error) =>
+          toast.error(
+            `Unarchive failed: ${error instanceof Error ? error.message : String(error)}`,
+          ),
+      },
+    );
+  }, [pubkey, unarchiveMutation]);
+
+  return {
+    canArchive,
+    isArchived,
+    isPending: archiveMutation.isPending || unarchiveMutation.isPending,
+    archive,
+    unarchive,
+  };
+}
diff --git a/desktop/src/features/profile/ui/UserProfilePanelSections.tsx b/desktop/src/features/profile/ui/UserProfilePanelSections.tsx
index 05a97e82f..4d3654145 100644
--- a/desktop/src/features/profile/ui/UserProfilePanelSections.tsx
+++ b/desktop/src/features/profile/ui/UserProfilePanelSections.tsx
@@ -2,6 +2,8 @@ import * as React from "react";
 import type { LucideIcon } from "lucide-react";
 import {
   Activity,
+  Archive,
+  ArchiveRestore,
   ArrowUpRight,
   Brain,
   ChevronDown,
@@ -23,6 +25,7 @@ import { toast } from "sonner";
 
 import { MemorySection } from "@/features/agent-memory/ui/MemorySection";
 import { AgentStatusBadge } from "@/features/agents/ui/AgentStatusBadge";
+import { useIdentityArchive } from "@/features/identity-archive/hooks";
 import { getPresenceLabel } from "@/features/presence/lib/presence";
 import { PresenceDot } from "@/features/presence/ui/PresenceBadge";
 import type {
@@ -36,6 +39,7 @@ import { StatusEmoji } from "@/features/user-status/ui/StatusEmoji";
 import { BotIdenticon } from "@/features/messages/ui/BotIdenticon";
 import type { ManagedAgent, RelayAgent } from "@/shared/api/types";
 import { cn } from "@/shared/lib/cn";
+import { Button } from "@/shared/ui/button";
 
 const RUNTIME_LABELS: Record<string, string> = {
   goose: "Goose",
@@ -116,6 +120,8 @@ export function ProfileSummaryView({
   unfollowMutation,
   userStatus,
 }: ProfileSummaryViewProps) {
+  const { canArchive, isArchived } = useIdentityArchive(pubkey);
+
   const metadataFields = [
     ...buildPublicFields({
       pubkey,
@@ -139,10 +145,13 @@ export function ProfileSummaryView({
   const showChannelsIngress =
     channelsLoading || channelCount > 0 || isBot || relayAgent !== undefined;
 
+  const showManageSection = canArchive && isArchived !== undefined;
+
   return (
     <div className="flex flex-col gap-6 pt-4">
       <ProfileHero
         displayName={displayName}
+        isArchived={isArchived}
         isBot={isBot}
         presenceStatus={presenceStatus}
         profile={profile}
@@ -207,6 +216,10 @@ export function ProfileSummaryView({
       {metadataFields.length > 0 ? (
         <ProfileFieldGroup fields={metadataFields} />
       ) : null}
+
+      {showManageSection ? (
+        <ProfileManageSection isBot={isBot} pubkey={pubkey} />
+      ) : null}
     </div>
   );
 }
@@ -215,12 +228,14 @@ export function ProfileSummaryView({
 
 function ProfileHero({
   displayName,
+  isArchived,
   isBot,
   presenceStatus,
   profile,
   userStatus,
 }: {
   displayName: string;
+  isArchived: boolean | undefined;
   isBot: boolean;
   presenceStatus: "online" | "away" | "offline" | undefined;
   profile: ProfileSummaryViewProps["profile"];
@@ -263,6 +278,17 @@ function ProfileHero({
           ) : null}
         </div>
 
+        {isArchived === true ? (
+          <span
+            className="mt-1 inline-flex items-center gap-1 rounded-full bg-amber-500/10 px-2 py-0.5 text-[11px] font-medium text-amber-700 dark:text-amber-300"
+            data-testid="user-profile-archived-flair"
+            title="This identity is archived on this relay. Historical events remain attributed to it."
+          >
+            <Archive className="h-3 w-3" />
+            Archived on this relay
+          </span>
+        ) : null}
+
         {profile?.about?.trim() ? (
           <ProfileHeroDescription
             about={profile.about.trim()}
@@ -479,6 +505,59 @@ function ProfileQuickAction({
   );
 }
 
+// ── Manage section (archive / unarchive) ─────────────────────────────────────
+
+// NIP-IA archive / unarchive lives in its own section under the quick-actions
+// row. The relay verifies authority (self / admin / OA-owner) on submit; the
+// `canArchive` gate upstream is a UX guard so the button only renders when at
+// least one path will be accepted.
+function ProfileManageSection({
+  isBot,
+  pubkey,
+}: {
+  isBot: boolean;
+  pubkey: string;
+}) {
+  const { isArchived, isPending, archive, unarchive } =
+    useIdentityArchive(pubkey);
+
+  const archiveLabel = isBot ? "Archive agent" : "Archive identity";
+  const unarchiveLabel = isBot ? "Unarchive agent" : "Unarchive identity";
+
+  return (
+    <section className="flex flex-col gap-2">
+      <h4 className="text-xs font-medium uppercase tracking-wider text-muted-foreground/70">
+        Manage
+      </h4>
+      {isArchived ? (
+        <Button
+          className="w-full"
+          data-testid="user-profile-unarchive-identity"
+          disabled={isPending}
+          onClick={unarchive}
+          type="button"
+          variant="secondary"
+        >
+          <ArchiveRestore className="h-4 w-4" />
+          {isPending ? "Unarchiving…" : unarchiveLabel}
+        </Button>
+      ) : (
+        <Button
+          className="w-full"
+          data-testid="user-profile-archive-identity"
+          disabled={isPending}
+          onClick={archive}
+          type="button"
+          variant="secondary"
+        >
+          <Archive className="h-4 w-4" />
+          {isPending ? "Archiving…" : archiveLabel}
+        </Button>
+      )}
+    </section>
+  );
+}
+
 // ── Field rows ───────────────────────────────────────────────────────────────
 
 type ProfileField = {
diff --git a/desktop/tests/e2e/identity-archive.spec.ts b/desktop/tests/e2e/identity-archive.spec.ts
new file mode 100644
index 000000000..58498569d
--- /dev/null
+++ b/desktop/tests/e2e/identity-archive.spec.ts
@@ -0,0 +1,115 @@
+import { expect, test } from "@playwright/test";
+
+import { installMockBridge } from "../helpers/bridge";
+
+// NIP-IA archive button + "Archived" flair gate matrix.
+//
+// Guards the composition `canArchive = isSelf || isRelayAdminOrOwner ||
+// isOaOwnerOfViewee` in UserProfilePanel.tsx. Unit tests cover each input in
+// isolation; this spec covers the OR composition where silent regressions
+// (refactor turns OR into AND, role expansion bypasses a branch, etc.) would
+// otherwise slip past code review.
+
+const ALICE_PUBKEY =
+  "953d3363262e86b770419834c53d2446409db6d918a57f8f339d495d54ab001f";
+
+async function openSelfProfile(page: import("@playwright/test").Page) {
+  await page.goto("/");
+  await page.getByTestId("channel-general").click();
+  await expect(page.getByTestId("chat-title")).toHaveText("general");
+  // First seed message in #general is from the active identity.
+  const firstMessage = page.getByTestId("message-row").first();
+  await firstMessage.locator("button", { hasText: "npub1mock..." }).click();
+  await expect(page.getByTestId("user-profile-panel")).toBeVisible();
+}
+
+async function openAliceProfile(page: import("@playwright/test").Page) {
+  await page.goto("/");
+  await page.getByTestId("channel-general").click();
+  await expect(page.getByTestId("chat-title")).toHaveText("general");
+  // Second seed message in #general is from Alice. Her display name "alice"
+  // is registered in mockDisplayNames, so the author button text is "alice".
+  const aliceMessage = page.getByTestId("message-row").nth(1);
+  await aliceMessage.locator("button", { hasText: "alice" }).first().click();
+  const panel = page.getByTestId("user-profile-panel");
+  await expect(panel).toBeVisible();
+  await expect(panel).toContainText(ALICE_PUBKEY.slice(0, 8));
+}
+
+test.describe("NIP-IA archive button gate", () => {
+  test("case 1 — self viewer + self target: Archive visible, no flair", async ({
+    page,
+  }) => {
+    await installMockBridge(page, { relayRole: null, oaOwnerIsMe: false });
+    await openSelfProfile(page);
+    await expect(
+      page.getByTestId("user-profile-archive-identity"),
+    ).toBeVisible();
+    await expect(page.getByTestId("user-profile-archived-flair")).toHaveCount(
+      0,
+    );
+  });
+
+  test("case 2 — relay admin viewing Alice: Archive visible", async ({
+    page,
+  }) => {
+    await installMockBridge(page, {
+      relayRole: "admin",
+      oaOwnerIsMe: false,
+      archivedIdentities: [],
+    });
+    await openAliceProfile(page);
+    await expect(
+      page.getByTestId("user-profile-archive-identity"),
+    ).toBeVisible();
+  });
+
+  test("case 3 — verified OA owner viewing Alice: Archive visible", async ({
+    page,
+  }) => {
+    await installMockBridge(page, {
+      relayRole: null,
+      oaOwnerIsMe: true,
+      archivedIdentities: [],
+    });
+    await openAliceProfile(page);
+    await expect(
+      page.getByTestId("user-profile-archive-identity"),
+    ).toBeVisible();
+  });
+
+  test("case 4 — no authority viewing Alice: Archive hidden", async ({
+    page,
+  }) => {
+    await installMockBridge(page, {
+      relayRole: null,
+      oaOwnerIsMe: false,
+      archivedIdentities: [],
+    });
+    await openAliceProfile(page);
+    await expect(page.getByTestId("user-profile-archive-identity")).toHaveCount(
+      0,
+    );
+    await expect(
+      page.getByTestId("user-profile-unarchive-identity"),
+    ).toHaveCount(0);
+  });
+
+  test("case 5 — Alice archived: flair + Unarchive button (under admin gate)", async ({
+    page,
+  }) => {
+    await installMockBridge(page, {
+      relayRole: "admin",
+      oaOwnerIsMe: false,
+      archivedIdentities: [ALICE_PUBKEY],
+    });
+    await openAliceProfile(page);
+    await expect(page.getByTestId("user-profile-archived-flair")).toBeVisible();
+    await expect(
+      page.getByTestId("user-profile-unarchive-identity"),
+    ).toBeVisible();
+    await expect(page.getByTestId("user-profile-archive-identity")).toHaveCount(
+      0,
+    );
+  });
+});