Method signature
Parameters
Return value
Examples
Get Host for Web Server
Get Host for API Server
Get Host for Database Connection
Error handling
The method throws errors in the following cases:- Sandbox not active: When called without an active sandbox environment
- Unsupported sandbox: When called with unsupported sandbox environments (FlyIO, Modal)
- Invalid port: When the port number is invalid or out of range
Sandbox compatibility
Use cases
- Web Development: Access development servers running in the sandbox
- API Testing: Get URLs for API servers to test endpoints
- Database Access: Connect to databases running in the sandbox
- Microservices: Access multiple services running on different ports
- Live Previews: Generate URLs for real-time preview of web applications
Notes
- Multi-Sandbox Support: This method is available for E2B, Daytona, Cloudflare and Northflank sandbox environments
- Automatic URL Generation: Supported sandboxes automatically generate secure HTTPS URLs for exposed ports
- Real-time Access: URLs are immediately accessible once the service starts on the specified port
- Security: All generated URLs use HTTPS and are scoped to the specific sandbox instance
- Port Range: Standard port ranges (1-65535) are supported
- No Port Validation: The method doesn’t validate if a service is actually running on the specified port

