WordPress Rest API

I’m trying to call a post from a WordPress install using WP REST API. I keep getting an error in return and I can’t find out why. Do I need to authenticate? One website said I don’t need to authenticate for a GET request. WP REST API: Version 2.0-beta9. Here is the code I am using:

$(document).ready(function () {

setTimeout(GetPosts, 2000);

function GetPosts() {

     $.ajax({
        url: 'http://easterly.haamap.com/wp-json/posts',
        data: {
            filter: {
            'posts_per_page': 1
            }
        },
        dataType: 'json',
        type: 'GET',
        success: function(data) {
            console.log(data);
        },
        error: function() {
            console.log('error');
        }
    });

}

})

What version of the REST API are you using? If you’re using the version that’s bundled with WordPress 4.4 (ie, v2), you’ll need to change your url to something like http://example.com/wp-json/wp/v2/posts.

Reference

WP API version 2 docs