WordPress at a glance
action is not described

http_api_curl action-hook . WP 1.0

This action is documented in wp-includes/class-wp-http-curl.php

Usage

add_action( 'http_api_curl', 'action_function_name_2447', 10, 3 );
function action_function_name_2447( &$parameters[0], $request, $url ){
	// action...
}
&$parameters[0]
-
$request
-
$url
-

Where the hook is called

WP_HTTP_Requests_Hooks::dispatch()
http_api_curl
WP_Http_Curl::request()
http_api_curl
wp-includes/class-wp-http-requests-hooks.php 57
do_action_ref_array( 'http_api_curl', array( &$parameters[0], $this->request, $this->url ) );
wp-includes/class-wp-http-curl.php 230
do_action_ref_array( 'http_api_curl', array( &$handle, $parsed_args, $url ) );

Where in WP core the hook is used WordPress

Usage not found.