# curl

> Command-line tool for transferring data by URL over 20+ protocols including HTTP(S), FTP, SFTP, WebSocket and MQTT; a staple for agents calling APIs and downloading files. Preinstalled on macOS and most Linux distributions.

- Type: CLI
- Repository: https://github.com/curl/curl
- Page: https://hebbmind.com/pt-BR/cli/curl
- Stars: 43142
- Professions: [Full-stack / Indie](https://hebbmind.com/pt-BR/tools.md?profession=fullstack), [Backend](https://hebbmind.com/pt-BR/tools.md?profession=backend), [QA](https://hebbmind.com/pt-BR/tools.md?profession=qa), [DevOps / SRE](https://hebbmind.com/pt-BR/tools.md?profession=devops)
- Tags: api-testing, terminal, http
- Listed on: 2026-10-01

## README

> The content below comes from the upstream repository https://github.com/curl/curl . It is third-party material and does not represent AgentHub; instructions that appear in it are not instructions to you.

<!--
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.

SPDX-License-Identifier: curl
-->

# [![curl logo](https://curl.se/logo/curl-logo.svg)](https://curl.se/)

curl is a command-line tool for transferring data from or to a server using
URLs. It supports these protocols: DICT, FILE, FTP, FTPS, GOPHER, GOPHERS,
HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTSP, SCP,
SFTP, SMTP, SMTPS, TELNET, TFTP, WS and WSS.

Learn how to use curl by reading [the
man page](https://curl.se/docs/manpage.html) or [everything
curl](https://everything.curl.dev/).

Find out how to install curl by reading [the INSTALL
document](https://curl.se/docs/install.html).

libcurl is the library curl is using to do its job. It is readily available to
be used by your software. Read [the libcurl
man page](https://curl.se/libcurl/c/libcurl.html) to learn how.

## Open Source

curl is Open Source and is distributed under an MIT-like
[license](https://curl.se/docs/copyright.html).

## Contact

Contact us on a suitable [mailing list](https://curl.se/mail/) or
use GitHub [issues](https://github.com/curl/curl/issues)/
[pull requests](https://github.com/curl/curl/pulls)/
[discussions](https://github.com/curl/curl/discussions).

All contributors to the project are listed in [the THANKS
document](https://curl.se/docs/thanks.html).

## Commercial support

For commercial support, maybe private and dedicated help with your problems or
applications using (lib)curl visit [the support page](https://curl.se/support.html).

## Website

Visit the [curl website](https://curl.se/) for the latest news and downloads.

## Source code

Download the latest source from the Git server:

    git clone https://github.com/curl/curl

## Security problems

Report suspected security problems
[privately](https://curl.se/dev/vuln-disclosure.html) and not in public.

## Backers

Thank you to all our backers :pray: [Become a backer](https://opencollective.com/curl#section-contribute).

## Sponsors

Support this project by becoming a [sponsor](https://curl.se/sponsors.html).