diff --git a/src/examples/README.md b/src/examples/README.md
index e5654b9d..68e1ece2 100644
--- a/src/examples/README.md
+++ b/src/examples/README.md
@@ -33,6 +33,12 @@ A full-featured interactive client that connects to a Streamable HTTP server, de
 npx tsx src/examples/client/simpleStreamableHttp.ts
 ```
 
+Example client with OAuth:
+
+```bash
+npx tsx src/examples/client/simpleOAuthClient.js
+```
+
 ### Backwards Compatible Client
 
 A client that implements backwards compatibility according to the [MCP specification](https://modelcontextprotocol.io/specification/2025-03-26/basic/transports#backwards-compatibility), allowing it to work with both new and legacy servers. This client demonstrates:
diff --git a/src/examples/client/simpleOAuthClient.ts b/src/examples/client/simpleOAuthClient.ts
new file mode 100644
index 00000000..4531f4c2
--- /dev/null
+++ b/src/examples/client/simpleOAuthClient.ts
@@ -0,0 +1,422 @@
+#!/usr/bin/env node
+
+import { createServer } from 'node:http';
+import { createInterface } from 'node:readline';
+import { URL } from 'node:url';
+import { exec } from 'node:child_process';
+import { Client } from '../../client/index.js';
+import { StreamableHTTPClientTransport } from '../../client/streamableHttp.js';
+import { OAuthClientInformation, OAuthClientInformationFull, OAuthClientMetadata, OAuthTokens } from '../../shared/auth.js';
+import {
+  CallToolRequest,
+  ListToolsRequest,
+  CallToolResultSchema,
+  ListToolsResultSchema
+} from '../../types.js';
+import { OAuthClientProvider, UnauthorizedError } from '../../client/auth.js';
+
+// Configuration
+const DEFAULT_SERVER_URL = 'http://localhost:3000/mcp';
+const CALLBACK_PORT = 8090; // Use different port than auth server (3001)
+const CALLBACK_URL = `http://localhost:${CALLBACK_PORT}/callback`;
+
+/**
+ * In-memory OAuth client provider for demonstration purposes
+ * In production, you should persist tokens securely
+ */
+class InMemoryOAuthClientProvider implements OAuthClientProvider {
+  private _clientInformation?: OAuthClientInformationFull;
+  private _tokens?: OAuthTokens;
+  private _codeVerifier?: string;
+
+  constructor(
+    private readonly _redirectUrl: string | URL,
+    private readonly _clientMetadata: OAuthClientMetadata,
+    onRedirect?: (url: URL) => void
+  ) {
+    this._onRedirect = onRedirect || ((url) => {
+      console.log(`Redirect to: ${url.toString()}`);
+    });
+  }
+
+  private _onRedirect: (url: URL) => void;
+
+  get redirectUrl(): string | URL {
+    return this._redirectUrl;
+  }
+
+  get clientMetadata(): OAuthClientMetadata {
+    return this._clientMetadata;
+  }
+
+  clientInformation(): OAuthClientInformation | undefined {
+    return this._clientInformation;
+  }
+
+  saveClientInformation(clientInformation: OAuthClientInformationFull): void {
+    this._clientInformation = clientInformation;
+  }
+
+  tokens(): OAuthTokens | undefined {
+    return this._tokens;
+  }
+
+  saveTokens(tokens: OAuthTokens): void {
+    this._tokens = tokens;
+  }
+
+  redirectToAuthorization(authorizationUrl: URL): void {
+    this._onRedirect(authorizationUrl);
+  }
+
+  saveCodeVerifier(codeVerifier: string): void {
+    this._codeVerifier = codeVerifier;
+  }
+
+  codeVerifier(): string {
+    if (!this._codeVerifier) {
+      throw new Error('No code verifier saved');
+    }
+    return this._codeVerifier;
+  }
+}
+/**
+ * Interactive MCP client with OAuth authentication
+ * Demonstrates the complete OAuth flow with browser-based authorization
+ */
+class InteractiveOAuthClient {
+  private client: Client | null = null;
+  private readonly rl = createInterface({
+    input: process.stdin,
+    output: process.stdout,
+  });
+
+  constructor(private serverUrl: string) { }
+
+  /**
+   * Prompts user for input via readline
+   */
+  private async question(query: string): Promise<string> {
+    return new Promise((resolve) => {
+      this.rl.question(query, resolve);
+    });
+  }
+
+  /**
+   * Opens the authorization URL in the user's default browser
+   */
+  private async openBrowser(url: string): Promise<void> {
+    console.log(`🌐 Opening browser for authorization: ${url}`);
+
+    const command = `open "${url}"`;
+
+    exec(command, (error) => {
+      if (error) {
+        console.error(`Failed to open browser: ${error.message}`);
+        console.log(`Please manually open: ${url}`);
+      }
+    });
+  }
+  /**
+   * Example OAuth callback handler - in production, use a more robust approach
+   * for handling callbacks and storing tokens
+   */
+  /**
+   * Starts a temporary HTTP server to receive the OAuth callback
+   */
+  private async waitForOAuthCallback(): Promise<string> {
+    return new Promise<string>((resolve, reject) => {
+      const server = createServer((req, res) => {
+        // Ignore favicon requests
+        if (req.url === '/favicon.ico') {
+          res.writeHead(404);
+          res.end();
+          return;
+        }
+
+        console.log(`📥 Received callback: ${req.url}`);
+        const parsedUrl = new URL(req.url || '', 'http://localhost');
+        const code = parsedUrl.searchParams.get('code');
+        const error = parsedUrl.searchParams.get('error');
+
+        if (code) {
+          console.log(`✅ Authorization code received: ${code?.substring(0, 10)}...`);
+          res.writeHead(200, { 'Content-Type': 'text/html' });
+          res.end(`
+            <html>
+              <body>
+                <h1>Authorization Successful!</h1>
+                <p>You can close this window and return to the terminal.</p>
+                <script>setTimeout(() => window.close(), 2000);</script>
+              </body>
+            </html>
+          `);
+
+          resolve(code);
+          setTimeout(() => server.close(), 3000);
+        } else if (error) {
+          console.log(`❌ Authorization error: ${error}`);
+          res.writeHead(400, { 'Content-Type': 'text/html' });
+          res.end(`
+            <html>
+              <body>
+                <h1>Authorization Failed</h1>
+                <p>Error: ${error}</p>
+              </body>
+            </html>
+          `);
+          reject(new Error(`OAuth authorization failed: ${error}`));
+        } else {
+          console.log(`❌ No authorization code or error in callback`);
+          res.writeHead(400);
+          res.end('Bad request');
+          reject(new Error('No authorization code provided'));
+        }
+      });
+
+      server.listen(CALLBACK_PORT, () => {
+        console.log(`OAuth callback server started on http://localhost:${CALLBACK_PORT}`);
+      });
+    });
+  }
+
+  private async attemptConnection(oauthProvider: InMemoryOAuthClientProvider): Promise<void> {
+    console.log('🚢 Creating transport with OAuth provider...');
+    const baseUrl = new URL(this.serverUrl);
+    const transport = new StreamableHTTPClientTransport(baseUrl, {
+      authProvider: oauthProvider
+    });
+    console.log('🚢 Transport created');
+
+    try {
+      console.log('🔌 Attempting connection (this will trigger OAuth redirect)...');
+      await this.client!.connect(transport);
+      console.log('✅ Connected successfully');
+    } catch (error) {
+      if (error instanceof UnauthorizedError) {
+        console.log('🔐 OAuth required - waiting for authorization...');
+        const callbackPromise = this.waitForOAuthCallback();
+        const authCode = await callbackPromise;
+        await transport.finishAuth(authCode);
+        console.log('🔐 Authorization code received:', authCode);
+        console.log('🔌 Reconnecting with authenticated transport...');
+        await this.attemptConnection(oauthProvider);
+      } else {
+        console.error('❌ Connection failed with non-auth error:', error);
+        throw error;
+      }
+    }
+  }
+
+  /**
+   * Establishes connection to the MCP server with OAuth authentication
+   */
+  async connect(): Promise<void> {
+    console.log(`🔗 Attempting to connect to ${this.serverUrl}...`);
+
+    const clientMetadata: OAuthClientMetadata = {
+      client_name: 'Simple OAuth MCP Client',
+      redirect_uris: [CALLBACK_URL],
+      grant_types: ['authorization_code', 'refresh_token'],
+      response_types: ['code'],
+      token_endpoint_auth_method: 'client_secret_post',
+      scope: 'mcp:tools'
+    };
+
+    console.log('🔐 Creating OAuth provider...');
+    const oauthProvider = new InMemoryOAuthClientProvider(
+      CALLBACK_URL,
+      clientMetadata,
+      (redirectUrl: URL) => {
+        console.log(`📌 OAuth redirect handler called - opening browser`);
+        console.log(`Opening browser to: ${redirectUrl.toString()}`);
+        this.openBrowser(redirectUrl.toString());
+      }
+    );
+    console.log('🔐 OAuth provider created');
+
+    console.log('👤 Creating MCP client...');
+    this.client = new Client({
+      name: 'simple-oauth-client',
+      version: '1.0.0',
+    }, { capabilities: {} });
+    console.log('👤 Client created');
+
+    console.log('🔐 Starting OAuth flow...');
+
+    await this.attemptConnection(oauthProvider);
+
+    // Start interactive loop
+    await this.interactiveLoop();
+  }
+
+  /**
+   * Main interactive loop for user commands
+   */
+  async interactiveLoop(): Promise<void> {
+    console.log('\n🎯 Interactive MCP Client with OAuth');
+    console.log('Commands:');
+    console.log('  list - List available tools');
+    console.log('  call <tool_name> [args] - Call a tool');
+    console.log('  quit - Exit the client');
+    console.log();
+
+    while (true) {
+      try {
+        const command = await this.question('mcp> ');
+
+        if (!command.trim()) {
+          continue;
+        }
+
+        if (command === 'quit') {
+          break;
+        } else if (command === 'list') {
+          await this.listTools();
+        } else if (command.startsWith('call ')) {
+          await this.handleCallTool(command);
+        } else {
+          console.log('❌ Unknown command. Try \'list\', \'call <tool_name>\', or \'quit\'');
+        }
+      } catch (error) {
+        if (error instanceof Error && error.message === 'SIGINT') {
+          console.log('\n\n👋 Goodbye!');
+          break;
+        }
+        console.error('❌ Error:', error);
+      }
+    }
+  }
+
+  private async listTools(): Promise<void> {
+    if (!this.client) {
+      console.log('❌ Not connected to server');
+      return;
+    }
+
+    try {
+      const request: ListToolsRequest = {
+        method: 'tools/list',
+        params: {},
+      };
+
+      const result = await this.client.request(request, ListToolsResultSchema);
+
+      if (result.tools && result.tools.length > 0) {
+        console.log('\n📋 Available tools:');
+        result.tools.forEach((tool, index) => {
+          console.log(`${index + 1}. ${tool.name}`);
+          if (tool.description) {
+            console.log(`   Description: ${tool.description}`);
+          }
+          console.log();
+        });
+      } else {
+        console.log('No tools available');
+      }
+    } catch (error) {
+      console.error('❌ Failed to list tools:', error);
+    }
+  }
+
+  private async handleCallTool(command: string): Promise<void> {
+    const parts = command.split(/\s+/);
+    const toolName = parts[1];
+
+    if (!toolName) {
+      console.log('❌ Please specify a tool name');
+      return;
+    }
+
+    // Parse arguments (simple JSON-like format)
+    let toolArgs: Record<string, unknown> = {};
+    if (parts.length > 2) {
+      const argsString = parts.slice(2).join(' ');
+      try {
+        toolArgs = JSON.parse(argsString);
+      } catch {
+        console.log('❌ Invalid arguments format (expected JSON)');
+        return;
+      }
+    }
+
+    await this.callTool(toolName, toolArgs);
+  }
+
+  private async callTool(toolName: string, toolArgs: Record<string, unknown>): Promise<void> {
+    if (!this.client) {
+      console.log('❌ Not connected to server');
+      return;
+    }
+
+    try {
+      const request: CallToolRequest = {
+        method: 'tools/call',
+        params: {
+          name: toolName,
+          arguments: toolArgs,
+        },
+      };
+
+      const result = await this.client.request(request, CallToolResultSchema);
+
+      console.log(`\n🔧 Tool '${toolName}' result:`);
+      if (result.content) {
+        result.content.forEach((content) => {
+          if (content.type === 'text') {
+            console.log(content.text);
+          } else {
+            console.log(content);
+          }
+        });
+      } else {
+        console.log(result);
+      }
+    } catch (error) {
+      console.error(`❌ Failed to call tool '${toolName}':`, error);
+    }
+  }
+
+  close(): void {
+    this.rl.close();
+    if (this.client) {
+      // Note: Client doesn't have a close method in the current implementation
+      // This would typically close the transport connection
+    }
+  }
+}
+
+/**
+ * Main entry point
+ */
+async function main(): Promise<void> {
+  const serverUrl = process.env.MCP_SERVER_URL || DEFAULT_SERVER_URL;
+
+  console.log('🚀 Simple MCP OAuth Client');
+  console.log(`Connecting to: ${serverUrl}`);
+  console.log();
+
+  const client = new InteractiveOAuthClient(serverUrl);
+
+  // Handle graceful shutdown
+  process.on('SIGINT', () => {
+    console.log('\n\n👋 Goodbye!');
+    client.close();
+    process.exit(0);
+  });
+
+  try {
+    await client.connect();
+  } catch (error) {
+    console.error('Failed to start client:', error);
+    process.exit(1);
+  } finally {
+    client.close();
+  }
+}
+
+// Run if this file is executed directly
+main().catch((error) => {
+  console.error('Unhandled error:', error);
+  process.exit(1);
+});
\ No newline at end of file