How to Add a Header to a curl Request / / No Comments curl is one of those great utilities that’s been around seemingly forever and has endless use cases. These days I find myself using curl to batch download files and test APIs. Sometimes my testing leads me to using different HTTP headers in my requests. To add a header to a curl request, use the -H flag: curl -X 'GET' \ 'https://nft.api.cx.metamask.io/collections?chainId=1' \ -H 'accept: application/json' \ -H 'Version: 1' You can add multiple headers with multiple -H uses. Header format is usually [key]: [value]. The post How to Add a Header to a curl Request appeared first on David Walsh Blog. David Walsh Blog… more → Posted in: JavaScript Tagged with: curl, Header, Request