GeezerVison

list=users (us)

Get information about a list of users.

{
    "batchcomplete": "",
    "query": {
        "users": [
            {
                "name": "1.2.3.4",
                "invalid": ""
            },
            {
                "userid": 4587601,
                "name": "Catrope",
                "editcount": 359,
                "registration": "2007-06-07T16:36:03Z",
                "groups": [
                    "*",
                    "user",
                    "autoconfirmed"
                ],
                "emailable": "",
                "gender": "male"
            },
            {
                "name": "Vandal01",
                "missing": ""
            },
            {
                "userid": 2793024,
                "name": "Bob",
                "editcount": 4542,
                "registration": "2006-11-18T21:55:03Z",
                "groups": [
                    "extendedconfirmed",
                    "reviewer",
                    "*",
                    "user",
                    "autoconfirmed"
                ],
                "emailable": "",
                "gender": "male"
            }
        ]
    }
}

Python

#!/usr/bin/python3

"""
    get_users.py

    MediaWiki API Demos
    Demo of `Users` module: Get information about several users:
    [[1.2.3.4]], [[Catrope]], [[Vandal01]], and [[Bob]]

    MIT License
"""

import requests

S = requests.Session()

URL = "https://en.wikipedia.org/w/api.php"

PARAMS = {
    "action": "query",
    "format": "json",
    "list": "users",
    "ususers": "Catrope|Bob",
    "usprop": "blockinfo|groups|editcount|registration|emailable|gender"
}

R = S.get(url=URL, params=PARAMS)
DATA = R.json()

USERS = DATA["query"]["users"]

for u in USERS:
    print(str(u["name"]) + " has " + str(u["editcount"]) + " edits.")

PHP

<?php
/*
    get_users.php

    MediaWiki API Demos
    Demo of `Users` module: Get information about several users: [[1.2.3.4]], [[Catrope]], [[Vandal01]], and [[Bob]]

    MIT License
*/

$endPoint = "https://en.wikipedia.org/w/api.php";
$params = [
    "action" => "query",
    "list" => "users",
    "ususers" => "Catrope|Bob",
    "usprop" => "blockinfo|groups|editcount|registration|emailable|gender",
    "format" => "json"
];

$url = $endPoint . "?" . http_build_query( $params );

$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
$output = curl_exec( $ch );
curl_close( $ch );

$result = json_decode( $output, true );

foreach( $result["query"]["users"] as $user ){
    echo( $user["name"] . " has " . $user["editcount"] . " edits." . "\n" );
}

JavaScript

/*
    get_users.js

    MediaWiki API Demos
    Demo of `Users` module: Get information about several users: [[1.2.3.4]], [[Catrope]], [[Vandal01]], and [[Bob]]

    MIT License
*/

var url = "https://en.wikipedia.org/w/api.php"; 

var params = {
    action: "query",
    list: "users",
    ususers: "Catrope|Bob",
    usprop: "blockinfo|groups|editcount|registration|emailable|gender",
    format: "json"
};

url = url + "?origin=*";
Object.keys(params).forEach(function(key){url += "&" + key + "=" + params[key];});

fetch(url)
    .then(function(response){return response.json();})
    .then(function(response) {
        var users = response.query.users;
        for (var u in users) {
            console.log(users[u].name + " has " + users[u].editcount + " edits.");
        }
    })
    .catch(function(error){console.log(error);});

MediaWiki JS

/*
	get_users.js

	MediaWiki API Demos
	Demo of `Users` module: Get information about several users: [[1.2.3.4]], [[Catrope]], [[Vandal01]], and [[Bob]]

	MIT License
*/

var params = {
		action: 'query',
		list: 'users',
		ususers: 'Catrope|Bob',
		usprop: 'blockinfo|groups|editcount|registration|emailable|gender',
		format: 'json'
	},
	api = new mw.Api();

api.get( params ).done( function ( data ) {
	var users = data.query.users,
		u;
	for ( u in users ) {
		console.log( users[ u ].name + " has " + users[ u ].editcount + " edits.");
	}
} );