Developer guide · Last reviewed 1 October 2026 · 13 min read To use curl with proxy servers, add -x (or –proxy) followed by the proxy’s scheme, host and port, and put the username and password either in that string or in -U. This guide covers every curl proxy option you are likely to need: … Continue reading curl With Proxy: How to Use a curl Proxy (HTTP, SOCKS5, Auth, Env Vars)