diff --git a/examples/ai-agent/src/backend/server.ts b/examples/ai-agent/src/backend/server.ts
index f20eefd70..56b5a5272 100644
--- a/examples/ai-agent/src/backend/server.ts
+++ b/examples/ai-agent/src/backend/server.ts
@@ -2,6 +2,7 @@ import { registry } from "./registry";
 
 registry.start({
 	cors: {
-		origin: "http://localhost:5173",
+		origin: "http://localhost:3000",
+		credentials: true,
 	},
 });
diff --git a/examples/ai-agent/src/frontend/App.tsx b/examples/ai-agent/src/frontend/App.tsx
index e4b5b5f1b..9ca60bff9 100644
--- a/examples/ai-agent/src/frontend/App.tsx
+++ b/examples/ai-agent/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useState } from "react";
 import type { Message, registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 export function App() {
 	const aiAgent = useActor({
@@ -77,4 +76,4 @@ export function App() {
 			</div>
 		</div>
 	);
-}
\ No newline at end of file
+}
diff --git a/examples/better-auth-external-db/src/backend/server.ts b/examples/better-auth-external-db/src/backend/server.ts
index 637a609a7..aa2319d9b 100644
--- a/examples/better-auth-external-db/src/backend/server.ts
+++ b/examples/better-auth-external-db/src/backend/server.ts
@@ -6,7 +6,12 @@ import { auth } from "./auth";
 import { registry } from "./registry";
 
 // Start RivetKit
-registry.start();
+registry.start({
+	cors: {
+		origin: "http://localhost:5173",
+		credentials: true,
+	},
+});
 
 // Setup router
 const app = new Hono();
diff --git a/examples/better-auth-external-db/src/frontend/components/ChatRoom.tsx b/examples/better-auth-external-db/src/frontend/components/ChatRoom.tsx
index d26226029..bba4c8c39 100644
--- a/examples/better-auth-external-db/src/frontend/components/ChatRoom.tsx
+++ b/examples/better-auth-external-db/src/frontend/components/ChatRoom.tsx
@@ -1,11 +1,9 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useState } from "react";
 import type { registry } from "../../backend/registry";
 import { authClient } from "../auth-client";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 interface ChatRoomProps {
 	user: { id: string; email: string };
diff --git a/examples/chat-room/src/frontend/App.tsx b/examples/chat-room/src/frontend/App.tsx
index 99f7d08ed..858a17e1f 100644
--- a/examples/chat-room/src/frontend/App.tsx
+++ b/examples/chat-room/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useState } from "react";
 import type { Message, registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:6420");
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:6420");
 
 export function App() {
 	const [roomId, setRoomId] = useState("general");
diff --git a/examples/crdt/src/backend/server.ts b/examples/crdt/src/backend/server.ts
index f20eefd70..56b5a5272 100644
--- a/examples/crdt/src/backend/server.ts
+++ b/examples/crdt/src/backend/server.ts
@@ -2,6 +2,7 @@ import { registry } from "./registry";
 
 registry.start({
 	cors: {
-		origin: "http://localhost:5173",
+		origin: "http://localhost:3000",
+		credentials: true,
 	},
 });
diff --git a/examples/crdt/src/frontend/App.tsx b/examples/crdt/src/frontend/App.tsx
index bca29cd54..1eb07eae2 100644
--- a/examples/crdt/src/frontend/App.tsx
+++ b/examples/crdt/src/frontend/App.tsx
@@ -1,11 +1,10 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useRef, useState } from "react";
 import * as Y from "yjs";
 import { applyUpdate, encodeStateAsUpdate } from "yjs";
 import type { registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 function YjsEditor({ documentId }: { documentId: string }) {
 	const yjsDocument = useActor({
@@ -192,4 +191,4 @@ function bufferToBase64(buffer: Uint8Array): string {
 		binary += String.fromCharCode(buffer[i]);
 	}
 	return btoa(binary);
-}
\ No newline at end of file
+}
diff --git a/examples/database/src/backend/server.ts b/examples/database/src/backend/server.ts
index f20eefd70..56b5a5272 100644
--- a/examples/database/src/backend/server.ts
+++ b/examples/database/src/backend/server.ts
@@ -2,6 +2,7 @@ import { registry } from "./registry";
 
 registry.start({
 	cors: {
-		origin: "http://localhost:5173",
+		origin: "http://localhost:3000",
+		credentials: true,
 	},
 });
diff --git a/examples/database/src/frontend/App.tsx b/examples/database/src/frontend/App.tsx
index ce896e982..754bc2673 100644
--- a/examples/database/src/frontend/App.tsx
+++ b/examples/database/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useState } from "react";
 import type { Note, registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 function NotesApp({ userId }: { userId: string }) {
 	const [notes, setNotes] = useState<Note[]>([]);
@@ -199,4 +198,4 @@ export function App() {
 			<NotesApp key={selectedUser} userId={selectedUser} />
 		</div>
 	);
-}
\ No newline at end of file
+}
diff --git a/examples/freestyle/src/frontend/App.tsx b/examples/freestyle/src/frontend/App.tsx
index 2d3e91c2d..f8d8e17b6 100644
--- a/examples/freestyle/src/frontend/App.tsx
+++ b/examples/freestyle/src/frontend/App.tsx
@@ -1,13 +1,12 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useState } from "react";
 import type { Message, registry } from "../backend/registry";
 
-const client = createClient<typeof registry>({
+const { useActor } = createRivetKit<typeof registry>({
 	endpoint: import.meta.env.VITE_RIVET_ENDPOINT ?? "http://localhost:8080/api",
 	namespace: import.meta.env.VITE_RIVET_NAMESPACE,
 	runnerName: import.meta.env.VITE_RIVET_RUNNER_NAME ?? "freestyle-runner",
 });
-const { useActor } = createRivetKit(client);
 
 export function App() {
 	const [roomId, setRoomId] = useState("general");
diff --git a/examples/game/src/backend/server.ts b/examples/game/src/backend/server.ts
index f20eefd70..56b5a5272 100644
--- a/examples/game/src/backend/server.ts
+++ b/examples/game/src/backend/server.ts
@@ -2,6 +2,7 @@ import { registry } from "./registry";
 
 registry.start({
 	cors: {
-		origin: "http://localhost:5173",
+		origin: "http://localhost:3000",
+		credentials: true,
 	},
 });
diff --git a/examples/game/src/frontend/App.tsx b/examples/game/src/frontend/App.tsx
index f71b6e639..8eff9abad 100644
--- a/examples/game/src/frontend/App.tsx
+++ b/examples/game/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useRef, useState } from "react";
 import type { Player, registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 export function App() {
 	const [players, setPlayers] = useState<Player[]>([]);
@@ -200,4 +199,4 @@ export function App() {
 			</div>
 		</div>
 	);
-}
\ No newline at end of file
+}
diff --git a/examples/hono-bun/src/backend/server.ts b/examples/hono-bun/src/backend/server.ts
index 77cc48b7e..b2d846ba4 100644
--- a/examples/hono-bun/src/backend/server.ts
+++ b/examples/hono-bun/src/backend/server.ts
@@ -13,6 +13,7 @@ const { client, fetch } = registry.start({
 	getUpgradeWebSocket: () => upgradeWebSocket,
 	cors: {
 		origin: "http://localhost:5173",
+		credentials: true,
 	},
 });
 
diff --git a/examples/hono-bun/src/frontend/App.tsx b/examples/hono-bun/src/frontend/App.tsx
index dd797ab90..d53ca6a0e 100644
--- a/examples/hono-bun/src/frontend/App.tsx
+++ b/examples/hono-bun/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useState } from "react";
 import type { registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080/rivet");
-const { useActor } = createRivetKit<typeof registry>(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080/rivet");
 
 function App() {
 	const [count, setCount] = useState(0);
diff --git a/examples/hono-react/src/backend/server.ts b/examples/hono-react/src/backend/server.ts
index 58006b776..4c5f80de1 100644
--- a/examples/hono-react/src/backend/server.ts
+++ b/examples/hono-react/src/backend/server.ts
@@ -5,6 +5,7 @@ import { registry } from "./registry";
 const { client } = registry.start({
 	cors: {
 		origin: "http://localhost:5173",
+		credentials: true,
 	},
 });
 
diff --git a/examples/hono-react/src/frontend/App.tsx b/examples/hono-react/src/frontend/App.tsx
index 0277f1b8a..0fbc28b27 100644
--- a/examples/hono-react/src/frontend/App.tsx
+++ b/examples/hono-react/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useState } from "react";
 import type { registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-const { useActor } = createRivetKit<typeof registry>(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 function App() {
 	const [count, setCount] = useState(0);
diff --git a/examples/next-js/src/components/Counter.tsx b/examples/next-js/src/components/Counter.tsx
index 6ca86b7df..1dd070084 100644
--- a/examples/next-js/src/components/Counter.tsx
+++ b/examples/next-js/src/components/Counter.tsx
@@ -1,8 +1,14 @@
 "use client";
+
+import { createRivetKit } from "@rivetkit/next-js/client";
+import type { registry } from "@/rivet/registry";
 import { useState } from "react";
-import { useActor } from "@/lib/rivet-client";
 import styles from "./Counter.module.css";
 
+export const { useActor } = createRivetKit<typeof registry>(
+	process.env.NEXT_RIVET_ENDPOINT ?? "http://localhost:3000/api/rivet",
+);
+
 export function Counter() {
 	const [count, setCount] = useState(0);
 	const [counterName, setCounterName] = useState("test-counter");
diff --git a/examples/next-js/src/lib/rivet-client.ts b/examples/next-js/src/lib/rivet-client.ts
deleted file mode 100644
index e687b3c66..000000000
--- a/examples/next-js/src/lib/rivet-client.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-"use client";
-import { createClient, createRivetKit } from "@rivetkit/next-js/client";
-import type { registry } from "@/rivet/registry";
-
-const client = createClient<typeof registry>(
-	process.env.NEXT_RIVET_ENDPOINT ?? "http://localhost:3000/api/rivet",
-);
-export const { useActor } = createRivetKit(client);
diff --git a/examples/rate/src/backend/server.ts b/examples/rate/src/backend/server.ts
index f20eefd70..56b5a5272 100644
--- a/examples/rate/src/backend/server.ts
+++ b/examples/rate/src/backend/server.ts
@@ -2,6 +2,7 @@ import { registry } from "./registry";
 
 registry.start({
 	cors: {
-		origin: "http://localhost:5173",
+		origin: "http://localhost:3000",
+		credentials: true,
 	},
 });
diff --git a/examples/rate/src/frontend/App.tsx b/examples/rate/src/frontend/App.tsx
index 7fe8aa468..d31a76e35 100644
--- a/examples/rate/src/frontend/App.tsx
+++ b/examples/rate/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useState } from "react";
 import type { RateLimitResult, registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 function RateLimiterDemo({ userId }: { userId: string }) {
 	const [result, setResult] = useState<RateLimitResult | null>(null);
@@ -147,4 +146,4 @@ export function App() {
 			</div>
 		</div>
 	);
-}
\ No newline at end of file
+}
diff --git a/examples/raw-fetch-handler/src/backend/server.ts b/examples/raw-fetch-handler/src/backend/server.ts
index a70c8e887..394945681 100644
--- a/examples/raw-fetch-handler/src/backend/server.ts
+++ b/examples/raw-fetch-handler/src/backend/server.ts
@@ -4,7 +4,12 @@ import { cors } from "hono/cors";
 import { registry } from "./registry";
 
 // Start RivetKit
-const { client } = registry.start();
+const { client } = registry.start({
+	cors: {
+		origin: "http://localhost:5173",
+		credentials: true,
+	},
+});
 
 // Setup router
 const app = new Hono();
@@ -12,6 +17,7 @@ const app = new Hono();
 app.use(
 	cors({
 		origin: "http://localhost:5173",
+		credentials: true,
 	}),
 );
 
diff --git a/examples/raw-websocket-handler-proxy/src/backend/server.ts b/examples/raw-websocket-handler-proxy/src/backend/server.ts
index 9b386ce5c..a8eb71f97 100644
--- a/examples/raw-websocket-handler-proxy/src/backend/server.ts
+++ b/examples/raw-websocket-handler-proxy/src/backend/server.ts
@@ -3,7 +3,12 @@ import { createNodeWebSocket } from "@hono/node-ws";
 import { Hono } from "hono";
 import { registry } from "./registry.js";
 
-const { client } = registry.start();
+const { client } = registry.start({
+	cors: {
+		origin: "http://localhost:5173",
+		credentials: true,
+	},
+});
 
 const app = new Hono();
 const { injectWebSocket, upgradeWebSocket } = createNodeWebSocket({ app });
diff --git a/examples/raw-websocket-handler/src/frontend/App.tsx b/examples/raw-websocket-handler/src/frontend/App.tsx
index e3acd5b2d..167bef54e 100644
--- a/examples/raw-websocket-handler/src/frontend/App.tsx
+++ b/examples/raw-websocket-handler/src/frontend/App.tsx
@@ -1,9 +1,8 @@
 import React, { useState, useEffect, useRef } from "react";
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import type { registry } from "../backend/registry";
 
-const client = createClient<typeof registry>();
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 export default function App() {
 	const [messages, setMessages] = useState<Array<{ id: string; text: string; timestamp: number }>>([]);
diff --git a/examples/react/src/backend/server.ts b/examples/react/src/backend/server.ts
index f20eefd70..b51ac47fe 100644
--- a/examples/react/src/backend/server.ts
+++ b/examples/react/src/backend/server.ts
@@ -3,5 +3,6 @@ import { registry } from "./registry";
 registry.start({
 	cors: {
 		origin: "http://localhost:5173",
+		credentials: true,
 	},
 });
diff --git a/examples/react/src/frontend/App.tsx b/examples/react/src/frontend/App.tsx
index 9320b68d5..0fbc28b27 100644
--- a/examples/react/src/frontend/App.tsx
+++ b/examples/react/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useState } from "react";
 import type { registry } from "../backend/registry";
 
-const client = createClient<typeof registry>();
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 function App() {
 	const [count, setCount] = useState(0);
diff --git a/examples/stream/src/backend/server.ts b/examples/stream/src/backend/server.ts
index f20eefd70..56b5a5272 100644
--- a/examples/stream/src/backend/server.ts
+++ b/examples/stream/src/backend/server.ts
@@ -2,6 +2,7 @@ import { registry } from "./registry";
 
 registry.start({
 	cors: {
-		origin: "http://localhost:5173",
+		origin: "http://localhost:3000",
+		credentials: true,
 	},
 });
diff --git a/examples/stream/src/frontend/App.tsx b/examples/stream/src/frontend/App.tsx
index b226943d0..7dc73e6ea 100644
--- a/examples/stream/src/frontend/App.tsx
+++ b/examples/stream/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useState } from "react";
 import type { registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 export function App() {
 	const [topValues, setTopValues] = useState<number[]>([]);
@@ -179,4 +178,4 @@ export function App() {
 			</div>
 		</div>
 	);
-}
\ No newline at end of file
+}
diff --git a/examples/sync/src/backend/server.ts b/examples/sync/src/backend/server.ts
index f20eefd70..56b5a5272 100644
--- a/examples/sync/src/backend/server.ts
+++ b/examples/sync/src/backend/server.ts
@@ -2,6 +2,7 @@ import { registry } from "./registry";
 
 registry.start({
 	cors: {
-		origin: "http://localhost:5173",
+		origin: "http://localhost:3000",
+		credentials: true,
 	},
 });
diff --git a/examples/sync/src/frontend/App.tsx b/examples/sync/src/frontend/App.tsx
index 19e470279..83851f4b0 100644
--- a/examples/sync/src/frontend/App.tsx
+++ b/examples/sync/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useRef, useState } from "react";
 import type { Contact, registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 export function App() {
 	const [contacts, setContacts] = useState<Contact[]>([]);
@@ -342,4 +341,4 @@ export function App() {
 			</div>
 		</div>
 	);
-}
\ No newline at end of file
+}
diff --git a/examples/tenant/src/backend/server.ts b/examples/tenant/src/backend/server.ts
index f20eefd70..56b5a5272 100644
--- a/examples/tenant/src/backend/server.ts
+++ b/examples/tenant/src/backend/server.ts
@@ -2,6 +2,7 @@ import { registry } from "./registry";
 
 registry.start({
 	cors: {
-		origin: "http://localhost:5173",
+		origin: "http://localhost:3000",
+		credentials: true,
 	},
 });
diff --git a/examples/tenant/src/frontend/App.tsx b/examples/tenant/src/frontend/App.tsx
index c8356017a..0e7c2c1f5 100644
--- a/examples/tenant/src/frontend/App.tsx
+++ b/examples/tenant/src/frontend/App.tsx
@@ -1,9 +1,8 @@
-import { createClient, createRivetKit } from "@rivetkit/react";
+import { createRivetKit } from "@rivetkit/react";
 import { useEffect, useState } from "react";
 import type { Member, registry } from "../backend/registry";
 
-const client = createClient<typeof registry>("http://localhost:8080");
-const { useActor } = createRivetKit(client);
+const { useActor } = createRivetKit<typeof registry>("http://localhost:8080");
 
 const ORG_ID = "org-1";
 
diff --git a/packages/react/src/mod.ts b/packages/react/src/mod.ts
index 9070556a0..8cd6cd30e 100644
--- a/packages/react/src/mod.ts
+++ b/packages/react/src/mod.ts
@@ -6,11 +6,25 @@ import {
 } from "@rivetkit/framework-base";
 import { useStore } from "@tanstack/react-store";
 import { useEffect, useRef } from "react";
-import type { Client, ExtractActorsFromRegistry } from "rivetkit/client";
+import {
+	type Client,
+	createClient,
+	type ExtractActorsFromRegistry,
+} from "rivetkit/client";
 
 export { createClient } from "rivetkit/client";
 
 export function createRivetKit<Registry extends AnyActorRegistry>(
+	clientInput: Parameters<typeof createClient>[0],
+	opts: CreateRivetKitOptions<Registry> = {},
+) {
+	return createRivetKitWithClient<Registry>(
+		createClient<Registry>(clientInput),
+		opts,
+	);
+}
+
+export function createRivetKitWithClient<Registry extends AnyActorRegistry>(
 	client: Client<Registry>,
 	opts: CreateRivetKitOptions<Registry> = {},
 ) {