diff --git a/README.md b/README.md
index 7345615..9dc3858 100644
--- a/README.md
+++ b/README.md
@@ -102,25 +102,144 @@ To use this package, install via Composer by adding the following to your applic
 This library uses named parameters to specify optional arguments.
 Parameters with a default value must be set by name.
 
+Here's a comprehensive example demonstrating the full workflow: start session, navigate, observe, act, extract, execute agent, and end session.
+
 ```php
 <?php
 
+require_once __DIR__ . '/../vendor/autoload.php';
+
 use Stagehand\Client;
+use Stagehand\Sessions\Action;
+
+// Load environment variables from .env file if it exists
+if (file_exists(__DIR__ . '/../.env')) {
+    $dotenv = parse_ini_file(__DIR__ . '/../.env');
+    foreach ($dotenv as $key => $value) {
+        if (!getenv($key)) {
+            putenv("$key=$value");
+        }
+    }
+}
 
+// Initialize the Stagehand client with API keys from environment variables
 $client = new Client(
-  browserbaseAPIKey: getenv('BROWSERBASE_API_KEY') ?: 'My Browserbase API Key',
-  browserbaseProjectID: getenv(
-    'BROWSERBASE_PROJECT_ID'
-  ) ?: 'My Browserbase Project ID',
-  modelAPIKey: getenv('MODEL_API_KEY') ?: 'My Model API Key',
+    browserbaseAPIKey: getenv('BROWSERBASE_API_KEY') ?: throw new Exception('BROWSERBASE_API_KEY environment variable is required'),
+    browserbaseProjectID: getenv('BROWSERBASE_PROJECT_ID') ?: throw new Exception('BROWSERBASE_PROJECT_ID environment variable is required'),
+    modelAPIKey: getenv('MODEL_API_KEY') ?: throw new Exception('MODEL_API_KEY environment variable is required'),
 );
 
-$response = $client->sessions->act(
-  '00000000-your-session-id-000000000000',
-  input: 'click the first link on the page',
+// Start a new session
+$startResponse = $client->sessions->start(
+    browserbaseAPIKey: getenv('BROWSERBASE_API_KEY'),
+    browserbaseProjectID: getenv('BROWSERBASE_PROJECT_ID'),
+    model: 'openai/gpt-4o',
+);
+echo "Session started: {$startResponse->data->sessionID}\n";
+
+$sessionID = $startResponse->data->sessionID;
+
+// Navigate to Hacker News
+$client->sessions->navigate(
+    $sessionID,
+    url: 'https://news.ycombinator.com',
 );
+echo "Navigated to Hacker News\n";
+
+// Observe to find possible actions
+$observeResponse = $client->sessions->observe(
+    $sessionID,
+    instruction: 'find the link to view comments for the top post',
+);
+
+$actions = $observeResponse->data->result;
+echo "Found " . count($actions) . " possible actions\n";
+
+if (count($actions) === 0) {
+    echo "No actions found\n";
+    exit(0);
+}
+
+// Use the first action
+$action = $actions[0];
+echo "Acting on: {$action->description}\n";
+
+// Pass the action to Act
+$actResponse = $client->sessions->act(
+    $sessionID,
+    input: Action::with(
+        description: $action->description,
+        selector: $action->selector,
+        method: $action->method,
+        arguments: $action->arguments,
+    ),
+);
+echo "Act completed: {$actResponse->data->result->message}\n";
+
+// Extract data from the page
+// We're now on the comments page, so extract the top comment text
+$extractResponse = $client->sessions->extract(
+    $sessionID,
+    instruction: 'extract the text of the top comment on this page',
+    schema: [
+        'type' => 'object',
+        'properties' => [
+            'commentText' => [
+                'type' => 'string',
+                'description' => 'The text content of the top comment',
+            ],
+            'author' => [
+                'type' => 'string',
+                'description' => 'The username of the comment author',
+            ],
+        ],
+        'required' => ['commentText'],
+    ],
+);
+echo "Extracted data: " . json_encode($extractResponse->data->result) . "\n";
+
+// Get the author from the extracted data
+$extractedData = $extractResponse->data->result;
+$author = $extractedData['author'] ?? 'unknown';
+echo "Looking up profile for author: $author\n";
+
+// Use the Agent to find the author's profile
+// Execute runs an autonomous agent that can navigate and interact with pages
+$executeResponse = $client->sessions->executeAgent(
+    $sessionID,
+    agentConfig: [
+        'model' => 'openai/gpt-4.1-mini',
+        'cua' => false,
+    ],
+    executeOptions: [
+        'instruction' => "Find any personal website, GitHub, LinkedIn, or other best profile URL for the Hacker News user '$author'. " .
+            "Click on their username to go to their profile page and look for any links they have shared. " .
+            "Use Google Search with their username or other details from their profile if you dont find any direct links.",
+        'maxSteps' => 15,
+    ],
+);
+echo "Agent completed: {$executeResponse->data->result->message}\n";
+echo "Agent success: " . ($executeResponse->data->result->success ? 'true' : 'false') . "\n";
+echo "Agent actions taken: " . count($executeResponse->data->result->actions) . "\n";
+
+// End the session to clean up resources
+$client->sessions->end($sessionID);
+echo "Session ended\n";
+```
+
+### Running the Example
+
+Set the required environment variables and run the example script:
+
+```bash
+# Set your credentials
+export BROWSERBASE_API_KEY="your-browserbase-api-key"
+export BROWSERBASE_PROJECT_ID="your-browserbase-project-id"
+export MODEL_API_KEY="your-openai-api-key"
 
-var_dump($response->data);
+# Install dependencies and run
+composer install
+php examples/basic.php
 ```
 
 ### Value Objects
diff --git a/examples/.keep b/examples/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/examples/basic.php b/examples/basic.php
new file mode 100644
index 0000000..51ee2b6
--- /dev/null
+++ b/examples/basic.php
@@ -0,0 +1,120 @@
+<?php
+
+require_once __DIR__ . '/../vendor/autoload.php';
+
+use Stagehand\Client;
+use Stagehand\Sessions\Action;
+
+// Load environment variables from .env file if it exists
+if (file_exists(__DIR__ . '/../.env')) {
+    $dotenv = parse_ini_file(__DIR__ . '/../.env');
+    foreach ($dotenv as $key => $value) {
+        if (!getenv($key)) {
+            putenv("$key=$value");
+        }
+    }
+}
+
+// Initialize the Stagehand client with API keys from environment variables
+$client = new Client(
+    browserbaseAPIKey: getenv('BROWSERBASE_API_KEY') ?: throw new Exception('BROWSERBASE_API_KEY environment variable is required'),
+    browserbaseProjectID: getenv('BROWSERBASE_PROJECT_ID') ?: throw new Exception('BROWSERBASE_PROJECT_ID environment variable is required'),
+    modelAPIKey: getenv('MODEL_API_KEY') ?: throw new Exception('MODEL_API_KEY environment variable is required'),
+);
+
+// Start a new session
+$startResponse = $client->sessions->start(
+    browserbaseAPIKey: getenv('BROWSERBASE_API_KEY'),
+    browserbaseProjectID: getenv('BROWSERBASE_PROJECT_ID'),
+    model: 'openai/gpt-4o',
+);
+echo "Session started: {$startResponse->data->sessionID}\n";
+
+$sessionID = $startResponse->data->sessionID;
+
+// Navigate to Hacker News
+$client->sessions->navigate(
+    $sessionID,
+    url: 'https://news.ycombinator.com',
+);
+echo "Navigated to Hacker News\n";
+
+// Observe to find possible actions
+$observeResponse = $client->sessions->observe(
+    $sessionID,
+    instruction: 'find the link to view comments for the top post',
+);
+
+$actions = $observeResponse->data->result;
+echo "Found " . count($actions) . " possible actions\n";
+
+if (count($actions) === 0) {
+    echo "No actions found\n";
+    exit(0);
+}
+
+// Use the first action
+$action = $actions[0];
+echo "Acting on: {$action->description}\n";
+
+// Pass the action to Act
+$actResponse = $client->sessions->act(
+    $sessionID,
+    input: Action::with(
+        description: $action->description,
+        selector: $action->selector,
+        method: $action->method,
+        arguments: $action->arguments,
+    ),
+);
+echo "Act completed: {$actResponse->data->result->message}\n";
+
+// Extract data from the page
+// We're now on the comments page, so extract the top comment text
+$extractResponse = $client->sessions->extract(
+    $sessionID,
+    instruction: 'extract the text of the top comment on this page',
+    schema: [
+        'type' => 'object',
+        'properties' => [
+            'commentText' => [
+                'type' => 'string',
+                'description' => 'The text content of the top comment',
+            ],
+            'author' => [
+                'type' => 'string',
+                'description' => 'The username of the comment author',
+            ],
+        ],
+        'required' => ['commentText'],
+    ],
+);
+echo "Extracted data: " . json_encode($extractResponse->data->result) . "\n";
+
+// Get the author from the extracted data
+$extractedData = $extractResponse->data->result;
+$author = $extractedData['author'] ?? 'unknown';
+echo "Looking up profile for author: $author\n";
+
+// Use the Agent to find the author's profile
+// Execute runs an autonomous agent that can navigate and interact with pages
+$executeResponse = $client->sessions->executeAgent(
+    $sessionID,
+    agentConfig: [
+        'model' => 'openai/gpt-4.1-mini',
+        'cua' => false,
+    ],
+    executeOptions: [
+        'instruction' => "Find any personal website, GitHub, LinkedIn, or other best profile URL for the Hacker News user '$author'. " .
+            "Click on their username to go to their profile page and look for any links they have shared. " .
+            "Use Google Search with their username or other details from their profile if you dont find any direct links.",
+        'maxSteps' => 15,
+    ],
+);
+echo "Agent completed: {$executeResponse->data->result->message}\n";
+echo "Agent success: " . ($executeResponse->data->result->success ? 'true' : 'false') . "\n";
+echo "Agent actions taken: " . count($executeResponse->data->result->actions) . "\n";
+
+// End the session to clean up resources
+$client->sessions->end($sessionID);
+echo "Session ended\n";