[Answers](https://scrapfly.io/blog) / [curl](https://scrapfly.io/blog/tag/curl) / [How To Use Proxy With cURL?](https://scrapfly.io/blog/answers/how-to-use-proxy-with-curl) # How To Use Proxy With cURL? by [Mazen Ramadan](https://scrapfly.io/blog/author/mazen) Apr 14, 2026 2 min read [\#curl](https://scrapfly.io/blog/tag/curl) [\#proxies](https://scrapfly.io/blog/tag/proxies) [ ](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fscrapfly.io%2Fblog%2Fanswers%2Fhow-to-use-proxy-with-curl "Share on LinkedIn") Proxies are essential to avoid IP address blocking and accessing restricted web pages over a specific location. In a nutshell, proxies are servers that allow for IP address hiding by requesting the web source through another, acting as a middleware. To add proxy to cURL, we can use the `-x` or `--proxy` options. Let's explore using these options for proxy types. #### HTTP and HTTPs Proxies The general command for setting HTTP proxy with cURL is the following: bash```bash curl -x ://: ``` The `protocol` indicates the HTTP protocol in the case of the HTTP proxies. It can be either `htttp` or `https` depending on the proxy type, as using the `https` protocol with a proxy that doesn't support it will result in errors. The `proxy_host` and `proxy_port` are configured based on the proxy itself. The `proxy_host` can be represented as a numeric IP address or domain name. Here is an example of setting HTTP proxies with cURL. The actual proxy hostname and port are mocked: bash```bash # HTTP proxy curl --proxy http://123.12.12.12:1234 http://example.com/ curl --proxy http://some_proxy_domain:1234 http://example.com/ # HTTPs proxy curl --proxy https://123.12.12.12:1234 https://example.com/ curl --proxy https://some_proxy_domain:1234 https://example.com/ ``` #### Authenticated Proxies To proxy authentication with cURL, we only have to add the username and password as a prefix to the proxy. The same HTTP and HTTPs rules are also applied: ``` # HTTP proxy with authentication curl --proxy http://username:password@123.12.12.12:1234 http://example.com/ curl --proxy http://username:password@some_proxy_domain:1234 http://example.com/ # HTTPs proxy with authentication curl --proxy https://username:password@123.12.12.12:1234 https://example.com/ curl --proxy https://username:password@some_proxy_domain:1234 https://example.com/ ``` #### SOCKS Proxies The socks proxies operate over the `SOCKS4` or the `SOCKS5` protocol. Here is how to use socks proxies with cURL: bash```bash #SOCKS4 curl --proxy socks4://123.12.12.12:1234 http://example.com #SOCKS5 curl --proxy socks5://123.12.12.12:1234 http://example.com ``` Scale Your Web Scraping Anti-bot bypass, browser rendering, and rotating proxies, all in one API. Start with 1,000 free credits. No credit card required 1,000 free API credits Anti-bot bypass included [Start Free](https://scrapfly.io/register) [View Docs](https://scrapfly.io/docs/onboarding) Not ready? 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We'll also explo... ](https://scrapfly.io/blog/posts/how-to-use-curl-for-web-scraping) ## Related Questions - [ Q How to Follow Redirects In cURL? ](https://scrapfly.io/blog/answers/how-to-follow-redirects-in-curl) - [ Q How to Set User Agent With cURL? ](https://scrapfly.io/blog/answers/how-to-set-curl-user-agent) - [ Q What is The cURL (28) Error, Couldn't connect to server? ](https://scrapfly.io/blog/answers/what-is-the-curl-28-error) - [ Q How to Solve the cURL (60) Error When Using Proxy? ](https://scrapfly.io/blog/answers/how-to-solve-the-curl-60-error-when-proxy) Premium rotating proxies for scraping, **1,000 free credits** [Start Free](https://scrapfly.io/register)