API for curl
A Modern and Flexible Web Client for R

Global functions
.onAttach Source code
.onLoad Source code
CURLALTSVC_H1 Man page
CURLALTSVC_H2 Man page
CURLALTSVC_H3 Man page
CURLALTSVC_READONLYFILE Man page
CURLAUTH_ANY Man page
CURLAUTH_ANYSAFE Man page
CURLAUTH_AWS_SIGV4 Man page
CURLAUTH_BASIC Man page
CURLAUTH_BEARER Man page
CURLAUTH_DIGEST Man page
CURLAUTH_DIGEST_IE Man page
CURLAUTH_GSSAPI Man page
CURLAUTH_NEGOTIATE Man page
CURLAUTH_NONE Man page
CURLAUTH_NTLM Man page
CURLAUTH_ONLY Man page
CURLFOLLOW_ALL Man page
CURLFOLLOW_FIRSTONLY Man page
CURLFOLLOW_OBEYCODE Man page
CURLFTPAUTH_DEFAULT Man page
CURLFTPAUTH_SSL Man page
CURLFTPAUTH_TLS Man page
CURLFTPMETHOD_DEFAULT Man page
CURLFTPMETHOD_MULTICWD Man page
CURLFTPMETHOD_NOCWD Man page
CURLFTPMETHOD_SINGLECWD Man page
CURLFTPSSL_CCC_ACTIVE Man page
CURLFTPSSL_CCC_NONE Man page
CURLFTPSSL_CCC_PASSIVE Man page
CURLFTP_CREATE_DIR Man page
CURLFTP_CREATE_DIR_NONE Man page
CURLFTP_CREATE_DIR_RETRY Man page
CURLGSSAPI_DELEGATION_FLAG Man page
CURLGSSAPI_DELEGATION_NONE Man page
CURLGSSAPI_DELEGATION_POLICY_FLAG Man page
CURLHEADER_SEPARATE Man page
CURLHEADER_UNIFIED Man page
CURLHSTS_ENABLE Man page
CURLHSTS_READONLYFILE Man page
CURLMIMEOPT_FORMESCAPE Man page
CURLPROXY_HTTP Man page
CURLPROXY_HTTPS Man page
CURLPROXY_HTTPS2 Man page
CURLPROXY_HTTP_1_0 Man page
CURLPROXY_SOCKS4 Man page
CURLPROXY_SOCKS4A Man page
CURLPROXY_SOCKS5 Man page
CURLPROXY_SOCKS5_HOSTNAME Man page
CURLSSH_AUTH_AGENT Man page
CURLSSH_AUTH_ANY Man page
CURLSSH_AUTH_DEFAULT Man page
CURLSSH_AUTH_GSSAPI Man page
CURLSSH_AUTH_HOST Man page
CURLSSH_AUTH_KEYBOARD Man page
CURLSSH_AUTH_NONE Man page
CURLSSH_AUTH_PASSWORD Man page
CURLSSH_AUTH_PUBLICKEY Man page
CURLSSLOPT_ALLOW_BEAST Man page
CURLSSLOPT_AUTO_CLIENT_CERT Man page
CURLSSLOPT_NATIVE_CA Man page
CURLSSLOPT_NO_PARTIALCHAIN Man page
CURLSSLOPT_NO_REVOKE Man page
CURLSSLOPT_REVOKE_BEST_EFFORT Man page
CURLUSESSL_ALL Man page
CURLUSESSL_CONTROL Man page
CURLUSESSL_NONE Man page
CURLUSESSL_TRY Man page
CURLWS_NOAUTOPONG Man page
CURLWS_RAW_MODE Man page
CURL_HTTP_VERSION_1_0 Man page
CURL_HTTP_VERSION_1_1 Man page
CURL_HTTP_VERSION_2 Man page
CURL_HTTP_VERSION_2TLS Man page
CURL_HTTP_VERSION_2_0 Man page
CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE Man page
CURL_HTTP_VERSION_3 Man page
CURL_HTTP_VERSION_3ONLY Man page
CURL_HTTP_VERSION_NONE Man page
CURL_IPRESOLVE_V4 Man page
CURL_IPRESOLVE_V6 Man page
CURL_IPRESOLVE_WHATEVER Man page
CURL_NETRC_IGNORED Man page
CURL_NETRC_OPTIONAL Man page
CURL_NETRC_REQUIRED Man page
CURL_REDIR_GET_ALL Man page
CURL_REDIR_POST_301 Man page
CURL_REDIR_POST_302 Man page
CURL_REDIR_POST_303 Man page
CURL_REDIR_POST_ALL Man page
CURL_SSLVERSION_DEFAULT Man page
CURL_SSLVERSION_MAX_DEFAULT Man page
CURL_SSLVERSION_MAX_NONE Man page
CURL_SSLVERSION_MAX_TLSv1_0 Man page
CURL_SSLVERSION_MAX_TLSv1_1 Man page
CURL_SSLVERSION_MAX_TLSv1_2 Man page
CURL_SSLVERSION_MAX_TLSv1_3 Man page
CURL_SSLVERSION_TLSv1 Man page
CURL_SSLVERSION_TLSv1_0 Man page
CURL_SSLVERSION_TLSv1_1 Man page
CURL_SSLVERSION_TLSv1_2 Man page
CURL_SSLVERSION_TLSv1_3 Man page
CURL_TIMECOND_IFMODSINCE Man page
CURL_TIMECOND_IFUNMODSINCE Man page
CURL_TIMECOND_LASTMOD Man page
CURL_TIMECOND_NONE Man page
build_query_urlencoded Source code
curl Man page Source code
curl_connection Source code
curl_download Man page Source code
curl_dryrun Source code
curl_echo Man page Source code
curl_escape Man page Source code
curl_fetch_disk Man page Source code
curl_fetch_echo Man page Source code
curl_fetch_memory Man page Source code
curl_fetch_multi Man page Source code
curl_fetch_stream Man page Source code
curl_modify_url Man page Source code
curl_options Man page Source code
curl_options_table Man page Source code
curl_parse_url Man page Source code
curl_symbols Man page Source code
curl_unescape Man page Source code
curl_upload Man page Source code
curl_version Man page Source code
file_writer Man page Source code
find_port Man page Source code
fix_options Source code
form_data Man page Source code
form_file Man page Source code
format_request_headers Source code
format_size Source code
get_windows_build Source code
guess_handle_filename Source code
handle Man page
handle_clength Source code
handle_cookies Man page Source code
handle_data Man page Source code
handle_getcustom Source code
handle_getheaders Man page Source code
handle_mtime Source code
handle_received Source code
handle_reset Man page Source code
handle_setform Man page Source code
handle_setheaders Man page Source code
handle_setopt Man page Source code
handle_speed Source code
has_internet Man page
ie_get_proxy_for_url Man page Source code
ie_proxy Man page
ie_proxy_info Man page Source code
is_string Source code
later_wrapper Source code
make_one_handle Source code
multi Man page
multi_add Man page Source code
multi_cancel Man page Source code
multi_download Man page Source code
multi_fdset Man page Source code
multi_list Man page Source code
multi_run Man page Source code
multi_set Man page Source code
multipart Man page
new_file_writer Source code
new_handle Man page Source code
new_pool Man page Source code
normalize_field Source code
nslookup Man page Source code
parse_date Man page Source code
parse_headers Man page Source code
parse_headers_list Man page Source code
parse_query_urlencoded Source code
print.curl_handle Source code
print.curl_multi Source code
print.form_data Source code
print.form_file Source code
print_stream Source code
raise_libcurl_error Source code
replace_host Source code
send_mail Man page Source code
set_emscripten_gateway Source code
split_string Source code
total_handles Source code
total_writers Source code
toupper_url_encoding Source code
trimws Source code
write_file_writer Source code
write_to_file Source code
curl documentation built on Oct. 14, 2026, 5:06 p.m.