diff --git a/src/App.tsx b/src/App.tsx
index 3230d38..df1dcd9 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -2,6 +2,7 @@ import { BrowserRouter, Routes, Route, Navigate } from "react-router-dom";
 import AppLayout from "./components/layout/AppLayout";
 import ProjectForm from "./components/projects/ProjectForm";
 import ProjectDashboard from "./components/projects/ProjectDashboard";
+import SettingsPage from "./components/settings/SettingsPage";
 
 function EmptyState() {
   return (
@@ -20,6 +21,7 @@ function App() {
           <Route path="/projects/new" element={<ProjectForm />} />
           <Route path="/projects/:projectId" element={<ProjectDashboard />} />
           <Route path="/projects/:projectId/edit" element={<ProjectForm />} />
+          <Route path="/settings" element={<SettingsPage />} />
           <Route path="*" element={<Navigate to="/" replace />} />
         </Route>
       </Routes>
diff --git a/src/components/layout/Sidebar.tsx b/src/components/layout/Sidebar.tsx
index 91d3773..7d1d943 100644
--- a/src/components/layout/Sidebar.tsx
+++ b/src/components/layout/Sidebar.tsx
@@ -58,6 +58,12 @@ export default function Sidebar() {
           <p className="px-3 py-2 text-sm text-gray-500">No projects yet</p>
         )}
       </nav>
+
+      <div className="p-2 border-t border-gray-700">
+        <Link to="/settings" className="block px-3 py-2 rounded text-sm text-gray-300 hover:bg-gray-800 hover:text-white">
+          Settings
+        </Link>
+      </div>
     </aside>
   );
 }
diff --git a/src/components/settings/SettingsPage.tsx b/src/components/settings/SettingsPage.tsx
new file mode 100644
index 0000000..170a092
--- /dev/null
+++ b/src/components/settings/SettingsPage.tsx
@@ -0,0 +1,174 @@
+import { useState, useEffect } from "react";
+import {
+  getTuleapCredentials,
+  setTuleapCredentials,
+  deleteTuleapCredentials,
+  testTuleapConnection,
+} from "../../lib/api";
+import type { TuleapCredentialsSafe } from "../../lib/types";
+
+export default function SettingsPage() {
+  const [tuleapUrl, setTuleapUrl] = useState("");
+  const [username, setUsername] = useState("");
+  const [password, setPassword] = useState("");
+  const [existing, setExisting] = useState<TuleapCredentialsSafe | null>(null);
+  const [error, setError] = useState<string | null>(null);
+  const [success, setSuccess] = useState<string | null>(null);
+  const [saving, setSaving] = useState(false);
+  const [testing, setTesting] = useState(false);
+  const [deleting, setDeleting] = useState(false);
+
+  useEffect(() => {
+    getTuleapCredentials().then((creds) => {
+      if (creds) {
+        setExisting(creds);
+        setTuleapUrl(creds.tuleap_url);
+        setUsername(creds.username);
+      }
+    });
+  }, []);
+
+  function clearMessages() {
+    setError(null);
+    setSuccess(null);
+  }
+
+  async function handleSave(e: React.FormEvent) {
+    e.preventDefault();
+    clearMessages();
+    setSaving(true);
+    try {
+      const creds = await setTuleapCredentials(tuleapUrl, username, password);
+      setExisting(creds);
+      setPassword("");
+      setSuccess("Credentials saved.");
+    } catch (err: unknown) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setSaving(false);
+    }
+  }
+
+  async function handleTest() {
+    clearMessages();
+    setTesting(true);
+    try {
+      const msg = await testTuleapConnection();
+      setSuccess(msg);
+    } catch (err: unknown) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setTesting(false);
+    }
+  }
+
+  async function handleDelete() {
+    if (!window.confirm("Delete Tuleap credentials? This cannot be undone.")) return;
+    clearMessages();
+    setDeleting(true);
+    try {
+      await deleteTuleapCredentials();
+      setExisting(null);
+      setTuleapUrl("");
+      setUsername("");
+      setPassword("");
+      setSuccess("Credentials deleted.");
+    } catch (err: unknown) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setDeleting(false);
+    }
+  }
+
+  return (
+    <div className="max-w-lg mx-auto p-8">
+      <h2 className="text-xl font-bold mb-6">Settings</h2>
+
+      <div className="bg-white rounded-lg border border-gray-200 p-6">
+        <h3 className="text-base font-semibold mb-4">Tuleap credentials</h3>
+
+        <form onSubmit={handleSave} className="space-y-4">
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">
+              Tuleap URL
+            </label>
+            <input
+              type="url"
+              value={tuleapUrl}
+              onChange={(e) => setTuleapUrl(e.target.value)}
+              required
+              placeholder="https://tuleap.example.com"
+              className="w-full border border-gray-300 rounded px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+            />
+          </div>
+
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">
+              Username
+            </label>
+            <input
+              type="text"
+              value={username}
+              onChange={(e) => setUsername(e.target.value)}
+              required
+              className="w-full border border-gray-300 rounded px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+            />
+          </div>
+
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">
+              Password
+            </label>
+            <input
+              type="password"
+              value={password}
+              onChange={(e) => setPassword(e.target.value)}
+              placeholder={existing ? "Leave empty to keep current" : ""}
+              className="w-full border border-gray-300 rounded px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+            />
+          </div>
+
+          {error && (
+            <div className="text-red-600 text-sm bg-red-50 border border-red-200 rounded p-2">
+              {error}
+            </div>
+          )}
+
+          {success && (
+            <div className="text-green-700 text-sm bg-green-50 border border-green-200 rounded p-2">
+              {success}
+            </div>
+          )}
+
+          <div className="flex gap-2 flex-wrap">
+            <button
+              type="submit"
+              disabled={saving}
+              className="px-4 py-2 bg-blue-600 text-white rounded text-sm hover:bg-blue-700 disabled:opacity-50"
+            >
+              {saving ? "Saving..." : "Save"}
+            </button>
+            <button
+              type="button"
+              onClick={handleTest}
+              disabled={testing || !existing}
+              className="px-4 py-2 bg-gray-200 rounded text-sm hover:bg-gray-300 disabled:opacity-50"
+            >
+              {testing ? "Testing..." : "Test connection"}
+            </button>
+            {existing && (
+              <button
+                type="button"
+                onClick={handleDelete}
+                disabled={deleting}
+                className="px-4 py-2 bg-red-600 text-white rounded text-sm hover:bg-red-700 disabled:opacity-50"
+              >
+                {deleting ? "Deleting..." : "Delete"}
+              </button>
+            )}
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}
diff --git a/src/lib/api.ts b/src/lib/api.ts
index 6f01319..ca6e5e0 100644
--- a/src/lib/api.ts
+++ b/src/lib/api.ts
@@ -1,5 +1,13 @@
 import { invoke } from "@tauri-apps/api/core";
-import type { Project } from "./types";
+import type {
+  Project,
+  TuleapCredentialsSafe,
+  AgentConfig,
+  FilterGroup,
+  WatchedTracker,
+  TrackerField,
+  ProcessedTicket,
+} from "./types";
 
 export async function createProject(
   name: string,
@@ -32,3 +40,45 @@ export async function updateProject(
 export async function deleteProject(id: string): Promise<void> {
   return invoke("delete_project", { id });
 }
+
+// Credentials
+export async function setTuleapCredentials(tuleapUrl: string, username: string, password: string): Promise<TuleapCredentialsSafe> {
+  return invoke("set_tuleap_credentials", { tuleapUrl, username, password });
+}
+export async function getTuleapCredentials(): Promise<TuleapCredentialsSafe | null> {
+  return invoke("get_tuleap_credentials");
+}
+export async function deleteTuleapCredentials(): Promise<void> {
+  return invoke("delete_tuleap_credentials");
+}
+export async function testTuleapConnection(): Promise<string> {
+  return invoke("test_tuleap_connection");
+}
+
+// Trackers
+export async function addTracker(projectId: string, trackerId: number, trackerLabel: string, pollingInterval: number, agentConfig: AgentConfig, filters: FilterGroup[]): Promise<WatchedTracker> {
+  return invoke("add_tracker", { projectId, trackerId, trackerLabel, pollingInterval, agentConfig, filters });
+}
+export async function listTrackers(projectId: string): Promise<WatchedTracker[]> {
+  return invoke("list_trackers", { projectId });
+}
+export async function updateTracker(id: string, pollingInterval: number, agentConfig: AgentConfig, filters: FilterGroup[], enabled: boolean): Promise<void> {
+  return invoke("update_tracker", { id, pollingInterval, agentConfig, filters, enabled });
+}
+export async function removeTracker(id: string): Promise<void> {
+  return invoke("remove_tracker", { id });
+}
+export async function getTrackerFields(trackerId: number): Promise<TrackerField[]> {
+  return invoke("get_tracker_fields", { trackerId });
+}
+
+// Tickets & Polling
+export async function listProcessedTickets(projectId: string): Promise<ProcessedTicket[]> {
+  return invoke("list_processed_tickets", { projectId });
+}
+export async function manualPoll(trackerId: string): Promise<ProcessedTicket[]> {
+  return invoke("manual_poll", { trackerId });
+}
+export async function getQueueStatus(projectId: string): Promise<ProcessedTicket[]> {
+  return invoke("get_queue_status", { projectId });
+}
diff --git a/src/lib/types.ts b/src/lib/types.ts
index d5161cc..85ebc7d 100644
--- a/src/lib/types.ts
+++ b/src/lib/types.ts
@@ -6,3 +6,66 @@ export interface Project {
   base_branch: string;
   created_at: string;
 }
+
+export interface TuleapCredentialsSafe {
+  id: string;
+  tuleap_url: string;
+  username: string;
+}
+
+export interface AgentConfig {
+  analyst_command: string;
+  analyst_args: string[];
+  developer_command: string;
+  developer_args: string[];
+}
+
+export interface Filter {
+  field: string;
+  operator: string;
+  value: string[];
+}
+
+export interface FilterGroup {
+  conditions: Filter[];
+}
+
+export interface TrackerField {
+  field_id: number;
+  label: string;
+  field_type: string;
+  values: FieldValue[];
+}
+
+export interface FieldValue {
+  id: number;
+  label: string;
+}
+
+export interface WatchedTracker {
+  id: string;
+  project_id: string;
+  tracker_id: number;
+  tracker_label: string;
+  polling_interval: number;
+  agent_config: AgentConfig;
+  filters: FilterGroup[];
+  enabled: boolean;
+  last_polled_at: string | null;
+  created_at: string;
+}
+
+export interface ProcessedTicket {
+  id: string;
+  tracker_id: string;
+  artifact_id: number;
+  artifact_title: string;
+  artifact_data: string;
+  status: string;
+  analyst_report: string | null;
+  developer_report: string | null;
+  worktree_path: string | null;
+  branch_name: string | null;
+  detected_at: string;
+  processed_at: string | null;
+}