You can add headers to your response. Create a response as described in Return a Response directly and pass the headers as an additional parameter: ```Python hl_lines="10 11 12" {!./src/response_headers/tutorial001.py!} ``` !!! tip Have in mind that custom proprietary headers can be added using the 'X-' prefix. But if you have custom headers that you want a client in a browser to be able to see, you need to add them to your CORS configurations, using the parameter `expose_headers` documented in Starlette's CORS docs.