cURL is a free and open-source project supported by hundreds of contributors and sponsors. libcurl is responsible for all portability-related functionality in cURL.

cURL is used to send data across command lines or scripts. It’s also found in automobiles, televisions, routers, printers, music, mobile devices, tablets, set-top boxes, and media players. It serves as the foundation for hundreds of software packages that connect billions of individuals on the internet every day.

Proxy support, user authentication, FTP upload, HTTP publishing, SSL connections, cookies, file transfer resumption, Metalink, and other capabilities are included in cURL. The plethora of features will make your head spin, as you can see below!

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cURL Api Call Command Line Tool Features

Durable and Reliable! cURL API

It was introduced in its present ‘incarnation’ in 1998 and has been used by several apps and businesses ever since. Sure, there were bugs and even some security problems, but it remained a highly strong and trustworthy library, and many users are still using older versions because they cling to what works.

Unrivaled Collection of Features!

There is simply no other HTTP and FTP library that offers the same amount and variety of functionality as cURL. Whether it’s free or paid.
The checkout and push interfaces each have their own unique view, allowing programs to use them precisely how they want.
It also provides an unrivaled variety of links, allowing you to access and use cURL from any language!

It’s Quite Popular!

It is the world’s most used C-based transport library.
It′ is used in high-volume applications by some of the world’s top corporations.
It is used in various well-popular open-source apps.
It′ has almost one million frequent users, either purposefully or unwittingly.

Mobile Devices

cURL has been ported to a wide range of platforms and CPUs. It offers the same API and functionality for all of them! Ensure that you can develop your program across a wide range of environments, including Solaris, NetBSD, FreeBSD, OS/2, BeOs, Mac OS, Ultrix, QNX, OpenVMS, RISC OS, Novell NetWare, DOS, and many more, rather than simply Solaris, NetBSD, FreeBSD, HPUX, IRIX, AIX, and others. cURL Api Call Command Line Tool. cURL Api Call Command Line Free.

Security

There are a few exceptions to this program’s safety. More information is available at libcurl-thread (3).

Supports IPv6

All protocols work flawlessly on IPv6 packets, as long as IPv6 support is enabled. There are a few minor details to consider:

Kerberos4 is not designed to work on IPv6.
SOCKS4 support is not fully IPv6 adapted.
There is no special requirement to utilize IPv6.
The library API stays unchanged and dynamically adapts to IPv4 / IPv6.
Only hostnames with AAAA DNS entries are permitted, as are IPv6 IP-type addresses.

Comparison of cURL and Wget

On the surface, both Curl and Wget can be thought of as utilities that can request and download content from web servers. However, if you dig deep, there is a lot more to uncover. The Curl command supports many protocols ranging from HTTPS and SFTP to IMAP, POP3, etc., while the Wget command only supports HTTP, HTTPS, and FTP.

Another major difference is that Wget supports recursive downloading while Curl does not. So, Wget will download everything from the webpage to the linked pages whereas Curl will not. On the other hand, Curl is based on the libcurl library, which provides APIs. Hence, it can be easily used in command-line scripting as well as GUI-based applications. You can think of Curl as a stripped-down command-line web browser that can upload and download content to and from a web server.

Install Curl on Windows

cURL comes pre-installed on Unix-based or Unix-like operating systems, and thus can be used directly on macOS. However, it can also be used on non-Unix systems like Windows with the help of “libcurl” library.

In Windows, all we have to do is download the libcurl zip file and make some changes to make it usable via the command prompt. First, download the libcurl zip file for Windows 32-bit or 64-bit, depending on what you own. After you have downloaded the file, extract the contents into a folder. For context, here is a screenshot of the contents extracted from the libcurl folder. cURL Api Call Command Line Tool.

Inside the extracted folder, head to the bin folder and copy the following files – “curl.exe” and “curl-ca-bundle“.

Create a folder called “cURL” inside the “C:” drive and paste both the copied files. Once you do that, you can directly use the cURL command when navigating to the “C:curl” folder inside Command Prompt.

Alternatively, if you want to run cURL directly from cmd, I would recommend creating an environment variable. To do this, head to the Start menu and type “environment variables” and click on the first result.

In the System Properties pop-up, click the Environment Variables button at the bottom.

On the Environment Variables screen, click the New button in the top half to add the user environment variable.

In the new User Variable screen, add the following entry. After that, click on ‘OK’ and then ‘Apply’ to save the changes.

Variable Value: C:curl

Learn how to use cURL with these useful commands for cURL- Windows
Once done, click OK under the Environment Variables menu to save changes. Should you post this, you should be able to use the cURL command directly at the command prompt. To test it, enter the following command

cURL –Version

Alternatively, you can also enable WSL for Windows and use the Ubuntu bash shell to run cURL commands from bash on Windows.

Excellent Assistance

You may obtain assistance with a mailing list fast and precisely. Usually within a few hours. The availability of mailing list archives on the web makes them searchable, allowing you to locate previously stated solutions and responses.

CURL has a bug tracker, and most known issues are addressed promptly.
It also provides highly thorough documentation on all of the procedures, which is available not only in each version archive but also on the website (s).

You can obtain paid help from one of the plexus support businesses listed below.
Because the code is open and free, any experienced programmer may fix and improve the tool and library at any time.

Fast!

Independent user tests have shown that it is just as quick, if not faster, than libwww in similar test scenarios.

Because libcurl is written in C, you achieve unprecedented speeds when utilizing links, but language-specific solutions (whether Perl, Python, PHP, TCL, or something else) are frequently far slower.

Extensive Documentation

Each function has its own thorough page that describes its true function and purpose. All interfaces feature human-style overview pages that describe the ideas that tie all capabilities together: simple, multiple parsing, sharing, and URLs.

There is a tutorial available.
Many samples of source code are excellent.

Closing Words

The cURL command is mainly used in programs to exchange data, files, and forms. Apart from the above commands, there are many other APIs, collections, or scripts that you can use with cURL. You can learn more about this on GitHub repos or Stack Overflow. For more issues or queries regarding any commands for cURL, let me know in the comments below.

Technical Details

Program name: cURL API Call′
Category: Utility Tools
License: Open-source
Version: latest
File size: 5.9 MB
Core: 32/64-bits
Operating systems: all Windows, Mac, Linux, etc
Languages: Multilingual
Developed by: Daniel Stenberg
Official website: curl.se

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cURL Api Call Command Line Free 2024 for Windows and Mac