diff --git a/apps/docs/content/docs/api-reference/python.mdx b/apps/docs/content/docs/api-reference/python.mdx
index 5ab91aac6bf..39aa0ed719f 100644
--- a/apps/docs/content/docs/api-reference/python.mdx
+++ b/apps/docs/content/docs/api-reference/python.mdx
@@ -30,7 +30,7 @@ from simstudio import SimStudioClient
 # Initialize the client
 client = SimStudioClient(
     api_key="your-api-key-here",
-    base_url="https://www.sim.ai"  # optional; the default https://sim.ai redirects to this host
+    base_url="https://www.sim.ai"  # optional, defaults to https://www.sim.ai
 )
 
 # Execute a workflow
@@ -48,12 +48,12 @@ except Exception as error:
 #### Constructor
 
 ```python
-SimStudioClient(api_key: str, base_url: str = "https://sim.ai")
+SimStudioClient(api_key: str, base_url: str = "https://www.sim.ai")
 ```
 
 **Parameters:**
 - `api_key` (str): Your Sim API key
-- `base_url` (str, optional): Base URL for the Sim API (defaults to `https://sim.ai`, which redirects to `https://www.sim.ai`; set the `www` host explicitly)
+- `base_url` (str, optional): Base URL for the Sim API (defaults to `https://www.sim.ai`; versions before 0.2.1 default to `https://sim.ai`, which redirects to `https://www.sim.ai`, so set the `www` host explicitly on older versions)
 
 #### Methods
 
diff --git a/apps/docs/content/docs/api-reference/typescript.mdx b/apps/docs/content/docs/api-reference/typescript.mdx
index 88068da4506..9d4e9310bd3 100644
--- a/apps/docs/content/docs/api-reference/typescript.mdx
+++ b/apps/docs/content/docs/api-reference/typescript.mdx
@@ -44,7 +44,7 @@ import { SimStudioClient } from 'simstudio-ts-sdk';
 // Initialize the client
 const client = new SimStudioClient({
   apiKey: 'your-api-key-here',
-  baseUrl: 'https://www.sim.ai' // optional; the default https://sim.ai redirects to this host
+  baseUrl: 'https://www.sim.ai' // optional, defaults to https://www.sim.ai
 });
 
 // Execute a workflow
@@ -68,7 +68,7 @@ new SimStudioClient(config: SimStudioConfig)
 
 **Configuration:**
 - `config.apiKey` (string): Your Sim API key
-- `config.baseUrl` (string, optional): Base URL for the Sim API (defaults to `https://sim.ai`, which redirects to `https://www.sim.ai`; set the `www` host explicitly)
+- `config.baseUrl` (string, optional): Base URL for the Sim API (defaults to `https://www.sim.ai`; versions before 0.2.1 default to `https://sim.ai`, which redirects to `https://www.sim.ai`, so set the `www` host explicitly on older versions)
 
 #### Methods
 
diff --git a/bun.lock b/bun.lock
index 3dc4a7980b7..d1862eaf6d0 100644
--- a/bun.lock
+++ b/bun.lock
@@ -738,7 +738,7 @@
     },
     "packages/ts-sdk": {
       "name": "simstudio-ts-sdk",
-      "version": "0.2.0",
+      "version": "0.2.1",
       "devDependencies": {
         "@sim/tsconfig": "workspace:*",
         "@types/node": "24.2.1",
diff --git a/packages/python-sdk/README.md b/packages/python-sdk/README.md
index 5074c4658fb..97119468785 100644
--- a/packages/python-sdk/README.md
+++ b/packages/python-sdk/README.md
@@ -33,7 +33,7 @@ from simstudio import SimStudioClient
 # Initialize the client
 client = SimStudioClient(
     api_key=os.getenv("SIM_API_KEY", "your-api-key-here"),
-    base_url="https://sim.ai"  # optional, defaults to https://sim.ai
+    base_url="https://www.sim.ai"  # optional, defaults to https://www.sim.ai
 )
 
 # Execute a workflow
@@ -51,11 +51,11 @@ except Exception as error:
 #### Constructor
 
 ```python
-SimStudioClient(api_key: str, base_url: str = "https://sim.ai")
+SimStudioClient(api_key: str, base_url: str = "https://www.sim.ai")
 ```
 
 - `api_key` (str): Your Sim API key
-- `base_url` (str, optional): Base URL for the Sim API (defaults to `https://sim.ai`)
+- `base_url` (str, optional): Base URL for the Sim API (defaults to `https://www.sim.ai`)
 
 #### Methods
 
@@ -408,7 +408,7 @@ from simstudio import SimStudioClient
 # Using environment variables
 client = SimStudioClient(
     api_key=os.getenv("SIM_API_KEY"),
-    base_url=os.getenv("SIM_BASE_URL", "https://sim.ai")
+    base_url=os.getenv("SIM_BASE_URL", "https://www.sim.ai")
 )
 ```
 
diff --git a/packages/python-sdk/pyproject.toml b/packages/python-sdk/pyproject.toml
index 1552d4e1412..a3a5cfbb2f1 100644
--- a/packages/python-sdk/pyproject.toml
+++ b/packages/python-sdk/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "simstudio-sdk"
-version = "0.2.0"
+version = "0.2.1"
 authors = [
     {name = "Sim", email = "help@sim.ai"},
 ]
diff --git a/packages/python-sdk/simstudio/__init__.py b/packages/python-sdk/simstudio/__init__.py
index 1258b37c100..4be050fbc48 100644
--- a/packages/python-sdk/simstudio/__init__.py
+++ b/packages/python-sdk/simstudio/__init__.py
@@ -21,7 +21,7 @@
 # rather than silently reporting True.
 _SUCCESSFUL_RUN_STATUSES = ('completed', 'paused')
 
-__version__ = "0.2.0"
+__version__ = "0.2.1"
 
 
 def _client_headers() -> Dict[str, str]:
@@ -140,10 +140,10 @@ class SimStudioClient:
     
     Args:
         api_key: Your Sim API key
-        base_url: Base URL for the Sim API (defaults to https://sim.ai)
+        base_url: Base URL for the Sim API (defaults to https://www.sim.ai)
     """
     
-    def __init__(self, api_key: str, base_url: str = "https://sim.ai"):
+    def __init__(self, api_key: str, base_url: str = "https://www.sim.ai"):
         self.api_key = api_key
         self.base_url = base_url.rstrip('/')
         self._session = requests.Session()
diff --git a/packages/python-sdk/tests/test_client.py b/packages/python-sdk/tests/test_client.py
index eb084b2b45b..de6e7029991 100644
--- a/packages/python-sdk/tests/test_client.py
+++ b/packages/python-sdk/tests/test_client.py
@@ -46,7 +46,7 @@ def test_simstudio_client_default_base_url():
     """Test SimStudioClient with default base URL."""
     client = SimStudioClient(api_key="test-api-key")
     assert client.api_key == "test-api-key"
-    assert client.base_url == "https://sim.ai"
+    assert client.base_url == "https://www.sim.ai"
 
 
 def test_set_api_key():
@@ -79,7 +79,7 @@ def test_validate_workflow_returns_false_on_error(mock_get):
     result = client.validate_workflow("test-workflow-id")
     
     assert result is False
-    mock_get.assert_called_once_with("https://sim.ai/api/workflows/test-workflow-id/status")
+    mock_get.assert_called_once_with("https://www.sim.ai/api/workflows/test-workflow-id/status")
 
 
 def test_simstudio_error():
@@ -131,7 +131,7 @@ def test_async_execution_returns_run_id(mock_post):
     mock_response.json.return_value = {
         "data": {
             "runId": "execution-123",
-            "statusUrl": "https://sim.ai/api/v2/workflows/workflow-id/runs/execution-123"
+            "statusUrl": "https://www.sim.ai/api/v2/workflows/workflow-id/runs/execution-123"
         }
     }
     mock_response.headers.get.return_value = None
@@ -146,11 +146,11 @@ def test_async_execution_returns_run_id(mock_post):
 
     assert result.success is True
     assert result.run_id == "execution-123"
-    assert result.status_url == "https://sim.ai/api/v2/workflows/workflow-id/runs/execution-123"
+    assert result.status_url == "https://www.sim.ai/api/v2/workflows/workflow-id/runs/execution-123"
     assert result.async_execution is True
 
     call_args = mock_post.call_args
-    assert call_args.args[0] == "https://sim.ai/api/v2/workflows/workflow-id/execute"
+    assert call_args.args[0] == "https://www.sim.ai/api/v2/workflows/workflow-id/execute"
     assert "X-Execution-Mode" not in call_args.kwargs["headers"]
     assert call_args.kwargs["json"] == {
         "input": {"message": "Hello"},
diff --git a/packages/ts-sdk/README.md b/packages/ts-sdk/README.md
index b077951eb3c..8357f8d68c9 100644
--- a/packages/ts-sdk/README.md
+++ b/packages/ts-sdk/README.md
@@ -34,7 +34,7 @@ import { SimStudioClient } from 'simstudio-ts-sdk';
 // Initialize the client
 const client = new SimStudioClient({
   apiKey: 'your-api-key-here',
-  baseUrl: 'https://sim.ai' // optional, defaults to https://sim.ai
+  baseUrl: 'https://www.sim.ai' // optional, defaults to https://www.sim.ai
 });
 
 // Execute a workflow
@@ -57,7 +57,7 @@ new SimStudioClient(config: SimStudioConfig)
 ```
 
 - `config.apiKey` (string): Your Sim API key
-- `config.baseUrl` (string, optional): Base URL for the Sim API (defaults to `https://sim.ai`)
+- `config.baseUrl` (string, optional): Base URL for the Sim API (defaults to `https://www.sim.ai`)
 
 #### Methods
 
diff --git a/packages/ts-sdk/examples/basic-usage.ts b/packages/ts-sdk/examples/basic-usage.ts
index f89b0d0d97a..f5c024ab892 100644
--- a/packages/ts-sdk/examples/basic-usage.ts
+++ b/packages/ts-sdk/examples/basic-usage.ts
@@ -4,7 +4,7 @@ import { SimStudioClient, SimStudioError } from '../src/index'
 async function basicExample() {
   const client = new SimStudioClient({
     apiKey: process.env.SIM_API_KEY!,
-    baseUrl: 'https://sim.ai',
+    baseUrl: 'https://www.sim.ai',
   })
 
   try {
diff --git a/packages/ts-sdk/package.json b/packages/ts-sdk/package.json
index 682e48a71ac..2cc07c7327e 100644
--- a/packages/ts-sdk/package.json
+++ b/packages/ts-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "simstudio-ts-sdk",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Sim SDK - Execute workflows programmatically",
   "type": "module",
   "exports": {
diff --git a/packages/ts-sdk/src/index.test.ts b/packages/ts-sdk/src/index.test.ts
index 905e626b1ca..a979db84257 100644
--- a/packages/ts-sdk/src/index.test.ts
+++ b/packages/ts-sdk/src/index.test.ts
@@ -245,4 +245,16 @@ describe('client identity', () => {
     )
     expect(headers['X-API-Key']).toBe('test-api-key')
   })
+
+  it('sends requests to the canonical www host when no baseUrl is given', async () => {
+    const client = new SimStudioClient({ apiKey: 'test-api-key' })
+    vi.mocked(mockFetch).mockClear()
+    vi.mocked(mockFetch).mockResolvedValue(
+      new Response(JSON.stringify({ data: { isDeployed: true } }), { status: 200 })
+    )
+
+    await client.getWorkflowStatus('workflow-id')
+
+    expect(String(vi.mocked(mockFetch).mock.calls[0][0])).toMatch(/^https:\/\/www\.sim\.ai\//)
+  })
 })
diff --git a/packages/ts-sdk/src/index.ts b/packages/ts-sdk/src/index.ts
index 6982f9acd85..76f0a9834a4 100644
--- a/packages/ts-sdk/src/index.ts
+++ b/packages/ts-sdk/src/index.ts
@@ -8,7 +8,7 @@ export interface SimStudioConfig {
  * rather than read at runtime, so the SDK stays usable where there is no file
  * system to read it from.
  */
-export const SDK_VERSION = '0.2.0'
+export const SDK_VERSION = '0.2.1'
 
 /**
  * Identifies this SDK to the API on every request, the way every official Sim
@@ -216,7 +216,7 @@ export class SimStudioClient {
 
   constructor(config: SimStudioConfig) {
     this.apiKey = config.apiKey
-    this.baseUrl = normalizeBaseUrl(config.baseUrl || 'https://sim.ai')
+    this.baseUrl = normalizeBaseUrl(config.baseUrl || 'https://www.sim.ai')
   }
 
   /** The headers every request carries: the credential and the client's identity. */