there is the url
http://wotr-mp.com/en_US/profile/associateSteamid?openid.assoc_handle=1234567890&openid.claimed_id=http%3A%2F%2Fsteamcommunity.com%2Fopenid%2Fid%2F76561198062900288&openid.identity=http%3A%2F%2Fsteamcommunity.com%2Fopenid%2Fid%2F76561198062900288&openid.mode=id_res&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0&openid.op_endpoint=https%3A%2F%2Fsteamcommunity.com%2Fopenid%2Flogin&openid.response_nonce=2016-01-30T10%3A54%3A19ZEYIRiGZiSoEFB8EtMGdBokmyRLs%3D&openid.return_to=http%3A%2F%2Fwotr-mp.com%2Fprofile%2FassociateSteamid&openid.sig=CQhV%2BoHJjL8KdXRkLhE46nDowZM%3D&openid.signed=signed%2Cop_endpoint%2Cclaimed_id%2Cidentity%2Creturn_to%2Cresponse_nonce%2Cassoc_handle