feat: Add Nstproxy Proxies

docs/examples/proxy/nstproxy_example.py

@@ -0,0 +1,39 @@
+"""
+NSTProxy Integration Examples for crawl4ai
+------------------------------------------
+
+NSTProxy is a premium residential proxy provider.
+👉 Purchase Proxies: https://nstproxy.com
+💰 Use coupon code "crawl4ai" for 10% off your plan.
+
+"""
+import asyncio
+from crawl4ai import AsyncWebCrawler, BrowserConfig
+
+
+async def main():
+    """
+    Example: Using NSTProxy with AsyncWebCrawler.
+    """
+
+    NST_TOKEN = "YOUR_NST_PROXY_TOKEN"  # Get from https://app.nstproxy.com/profile
+    CHANNEL_ID = "YOUR_NST_PROXY_CHANNEL_ID"  # Your NSTProxy Channel ID
+
+    browser_config = BrowserConfig()
+    browser_config.set_nstproxy(
+        token=NST_TOKEN,
+        channel_id=CHANNEL_ID,
+        country="ANY",  # e.g. "US", "JP", or "ANY"
+        state="",  # optional, leave empty if not needed
+        city="",  # optional, leave empty if not needed
+        session_duration=0  # Session duration in minutes,0 = rotate on every request
+    )
+
+    # === Run crawler ===
+    async with AsyncWebCrawler(config=browser_config) as crawler:
+        result = await crawler.arun(url="https://example.com")
+        print("[Nstproxy] Status:", result.status_code)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())