Atomx offers clients to connect via API. All necessary information can be found here: https://wiki.atomx.com/api.  If you limit the usage of your API to reporting only, first you need to authenticate. This is a sample:

$ curl 'https://api.atomx.com/v3/login' -H 'Content-Type: application/json;charset=UTF-8' --data-binary '{"password":"pass_wd_here","email":"email@address.com"}'

With this login you get a token back, which you use to run a report. Here is a sample report API call:

$ curl 'https://api.atomx.com/v3/report' -H 'Content-Type: application/json;charset=UTF-8' -H 'Authorization: Bearer YOUR_TOKEN_HERE' --data-binary '{"scope":"advertiser","emails":[],"groups":[],"metrics":["impressions","clicks","conversions","campaign_cost"],"where":[["advertiser_id","IN",["1234"]]],"from":"2016-08-17 00:00:00","to":"2016-08-18 00:00:00","timezone":"UTC"}'