diff --git a/tests/mcp-server.test.ts b/tests/mcp-server.test.ts
index cb7e461..b47a81b 100644
--- a/tests/mcp-server.test.ts
+++ b/tests/mcp-server.test.ts
@@ -261,5 +261,87 @@ describe("End-to-End Live Tool Calling over MCP Client", () => {
       await mcpServer.stop();
     }
   });
+
+  runLiveTests("calls meetings, wikis, and activities tools via Client", async () => {
+    const mcpServer = createServer({ baseUrl, apiKey: apiKey || "skip", readOnly: false });
+    const [clientTransport, serverTransport] = InMemoryTransport.createLinkedPair();
+    await mcpServer.start(serverTransport);
+
+    const client = new Client({ name: "test-runner", version: "1" });
+    await client.connect(clientTransport);
+
+    try {
+      // openproject_list_meetings
+      const listMeetingsRes = (await client.callTool({
+        name: "openproject_list_meetings",
+        arguments: { projectId: 1 },
+      })) as { content: Array<{ type: string; text: string }>; isError?: boolean };
+      expect(listMeetingsRes.isError).toBeFalsy();
+      const meetingsData = JSON.parse(listMeetingsRes.content[0]?.text ?? "{}");
+      expect(meetingsData.total).toBeGreaterThanOrEqual(4);
+      expect(meetingsData.elements.length).toBeGreaterThan(0);
+
+      // openproject_get_meeting
+      const getMeetingRes = (await client.callTool({
+        name: "openproject_get_meeting",
+        arguments: { id: 2, includeAgendaItems: true },
+      })) as { content: Array<{ type: string; text: string }>; isError?: boolean };
+      expect(getMeetingRes.isError).toBeFalsy();
+      const meetingData = JSON.parse(getMeetingRes.content[0]?.text ?? "{}");
+      expect(meetingData.id).toBe(2);
+      expect(meetingData.title).toBe("Weekly");
+      expect(meetingData.agendaItems.length).toBeGreaterThan(0);
+
+      // openproject_search_meetings
+      const searchMeetingsRes = (await client.callTool({
+        name: "openproject_search_meetings",
+        arguments: { query: "Weekly" },
+      })) as { content: Array<{ type: string; text: string }>; isError?: boolean };
+      expect(searchMeetingsRes.isError).toBeFalsy();
+      const searchMeetingsData = JSON.parse(searchMeetingsRes.content[0]?.text ?? "{}");
+      expect(searchMeetingsData.total).toBeGreaterThan(0);
+      expect(searchMeetingsData.elements.length).toBeGreaterThan(0);
+
+      // openproject_get_wiki_page
+      const getWikiRes = (await client.callTool({
+        name: "openproject_get_wiki_page",
+        arguments: { id: 1 },
+      })) as { content: Array<{ type: string; text: string }>; isError?: boolean };
+      expect(getWikiRes.isError).toBeFalsy();
+      const wikiData = JSON.parse(getWikiRes.content[0]?.text ?? "{}");
+      expect(wikiData.id).toBe(1);
+      expect(wikiData.title).toBe("Wiki");
+      expect(wikiData.project.id).toBe(1);
+
+      // openproject_search_wiki_pages
+      const searchWikiRes = (await client.callTool({
+        name: "openproject_search_wiki_pages",
+        arguments: { query: "Wiki" },
+      })) as { content: Array<{ type: string; text: string }>; isError?: boolean };
+      expect(searchWikiRes.isError).toBeFalsy();
+      const searchWikiData = JSON.parse(searchWikiRes.content[0]?.text ?? "[]");
+      expect(Array.isArray(searchWikiData)).toBe(true);
+      expect(searchWikiData.length).toBeGreaterThan(0);
+      expect(
+        searchWikiData.some(
+          (w: { id: number; title: string }) => w.id === 1 && w.title === "Wiki"
+        )
+      ).toBe(true);
+
+      // openproject_list_work_package_activities
+      const activitiesRes = (await client.callTool({
+        name: "openproject_list_work_package_activities",
+        arguments: { workPackageId: 38 },
+      })) as { content: Array<{ type: string; text: string }>; isError?: boolean };
+      expect(activitiesRes.isError).toBeFalsy();
+      const activitiesData = JSON.parse(activitiesRes.content[0]?.text ?? "[]");
+      expect(Array.isArray(activitiesData)).toBe(true);
+      expect(activitiesData.length).toBeGreaterThan(0);
+      expect(activitiesData[0].id).toBeDefined();
+    } finally {
+      await client.close();
+      await mcpServer.stop();
+    }
+  });
 });
 
diff --git a/tests/services.test.ts b/tests/services.test.ts
index e574fae..a091796 100644
--- a/tests/services.test.ts
+++ b/tests/services.test.ts
@@ -720,5 +720,59 @@ describe("Live Container Integration (Domain Services)", () => {
     const users = await domainServices.listUsers({ pageSize: 5 }, client);
     expect(users.items.length).toBeGreaterThan(0);
   });
+
+  runLiveTests("live: meetings service operations", async () => {
+    const client = new OpenProjectClient({ baseUrl: liveBaseUrl, apiKey: liveApiKey! });
+
+    // list meetings (should return meetings 2..5)
+    const meetings = await domainServices.listMeetings({ projectId: 1 }, client);
+    expect(meetings.elements.length).toBeGreaterThanOrEqual(4);
+    const meetingIds = meetings.elements.map((m) => m.id);
+    expect(meetingIds).toContain(2);
+    expect(meetingIds).toContain(3);
+    expect(meetingIds).toContain(4);
+    expect(meetingIds).toContain(5);
+
+    // get meeting (should return meeting with title "Weekly" and agenda items)
+    const meeting = await domainServices.getMeeting(2, { includeAgendaItems: true }, client);
+    expect(meeting.id).toBe(2);
+    expect(meeting.title).toBe("Weekly");
+    expect(meeting.agendaItems).toBeDefined();
+    expect(meeting.agendaItems!.length).toBeGreaterThan(0);
+    expect(meeting.agendaItems![0]!.title).toBeDefined();
+
+    // search meetings (should return results with matching items)
+    const searchRes = await domainServices.searchMeetings({ query: "Weekly" }, client);
+    expect(searchRes.elements.length).toBeGreaterThan(0);
+    const match = searchRes.elements.find((r) => r.meeting.title.includes("Weekly"));
+    expect(match).toBeDefined();
+  });
+
+  runLiveTests("live: wikis service operations", async () => {
+    const client = new OpenProjectClient({ baseUrl: liveBaseUrl, apiKey: liveApiKey! });
+
+    // get wiki page (should return title "Wiki", project id 1)
+    const wiki = await domainServices.getWikiPage(1, client);
+    expect(wiki.id).toBe(1);
+    expect(wiki.title).toBe("Wiki");
+    expect(wiki.project.id).toBe(1);
+
+    // search wiki pages (should discover and return wiki page 1)
+    const searchRes = await domainServices.searchWikiPages({ query: "Wiki" }, client);
+    expect(searchRes.length).toBeGreaterThan(0);
+    const found = searchRes.find((w) => w.id === 1);
+    expect(found).toBeDefined();
+    expect(found!.title).toBe("Wiki");
+    expect(found!.project.id).toBe(1);
+  });
+
+  runLiveTests("live: activities service operations", async () => {
+    const client = new OpenProjectClient({ baseUrl: liveBaseUrl, apiKey: liveApiKey! });
+
+    // list work package activities (should return activities for WP 38)
+    const activities = await domainServices.listWorkPackageActivities({ workPackageId: 38 }, client);
+    expect(activities.length).toBeGreaterThan(0);
+    expect(activities[0]!.id).toBeDefined();
+  });
 });