chore: import upstream snapshot with attribution

examples/auth/github_oauth/README.md

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+# GitHub OAuth Example
+
+Demonstrates FastMCP server protection with GitHub OAuth.
+
+## Setup
+
+1. Create a GitHub OAuth App:
+   - Go to GitHub Settings > Developer settings > OAuth Apps
+   - Set Authorization callback URL to: `http://127.0.0.1:8000/auth/callback`
+   - Copy the Client ID and Client Secret
+
+2. Set environment variables:
+
+   ```bash
+   export FASTMCP_SERVER_AUTH_GITHUB_CLIENT_ID="your-client-id"
+   export FASTMCP_SERVER_AUTH_GITHUB_CLIENT_SECRET="your-client-secret"
+   ```
+
+3. Run the server:
+
+   ```bash
+   python server.py
+   ```
+
+4. In another terminal, run the client:
+
+   ```bash
+   python client.py
+   ```
+
+The client will open your browser for GitHub authentication.

examples/auth/github_oauth/client.py

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+"""OAuth client example for connecting to FastMCP servers.
+
+This example demonstrates how to connect to an OAuth-protected FastMCP server.
+
+To run:
+    python client.py
+"""
+
+import asyncio
+
+from fastmcp.client import Client, OAuth
+
+SERVER_URL = "http://127.0.0.1:8000/mcp"
+
+
+async def main():
+    try:
+        async with Client(SERVER_URL, auth=OAuth()) as client:
+            assert await client.ping()
+            print("✅ Successfully authenticated!")
+
+            tools = await client.list_tools()
+            print(f"🔧 Available tools ({len(tools)}):")
+            for tool in tools:
+                print(f"   - {tool.name}: {tool.description}")
+    except Exception as e:
+        print(f"❌ Authentication failed: {e}")
+        raise
+
+
+if __name__ == "__main__":
+    asyncio.run(main())

examples/auth/github_oauth/server.py

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+"""GitHub OAuth server example for FastMCP.
+
+This example demonstrates how to protect a FastMCP server with GitHub OAuth.
+
+Required environment variables:
+- FASTMCP_SERVER_AUTH_GITHUB_CLIENT_ID: Your GitHub OAuth app client ID
+- FASTMCP_SERVER_AUTH_GITHUB_CLIENT_SECRET: Your GitHub OAuth app client secret
+
+To run:
+    python server.py
+"""
+
+import os
+
+from fastmcp import FastMCP
+from fastmcp.server.auth.providers.github import GitHubProvider
+
+auth = GitHubProvider(
+    client_id=os.getenv("FASTMCP_SERVER_AUTH_GITHUB_CLIENT_ID") or "",
+    client_secret=os.getenv("FASTMCP_SERVER_AUTH_GITHUB_CLIENT_SECRET") or "",
+    base_url="http://127.0.0.1:8000",
+    # redirect_path="/auth/callback",  # Default path - change if using a different callback URL
+)
+
+mcp = FastMCP("GitHub OAuth Example Server", auth=auth)
+
+
+@mcp.tool
+def echo(message: str) -> str:
+    """Echo the provided message."""
+    return message
+
+
+if __name__ == "__main__":
+    mcp.run(transport="http", port=8000)