| Module | Supported Domain Extensions | Protocol | Reference | Configuration guide |
| Verisign COM/NET EPP | com, net | EPP (extended), WHOIS | Verisign | Configuration Guide |
| Affilias | .info | EPP (extended) | Affilias | |
| Enom | Over 30 | Enom API/RRP | Enom | |
| SRSPlus | com, net, biz, info, org, co.uk me.uk, org.uk, us, tv, cc, ws, bz, tc, gs, ms, vg | SRSPlus API | SRSPlus | Configuration Guide |
| OnlineNIC | com, net, org, biz, info, us, in, cn, eu, cc, ws, mobi, tv, asia | OnlineNIC API | OnineNIC | |
| RRPProxy/KeySystems | Over 50 | RRPPRoxy API | RRPProxy | Configuration Guide |
| EU EPP | eu | EPP(extended) | EURid | |
| GR EPP | gr, *.gr | EPP(extended) | EPP Forth | Configuration Guide |
| SWITCH EPP | li, ch | EPP(extended) | SWITCH | Configuration Guide |
| LU EPP | lu | EPP(extended) | DNS-LU | Configuration Guide |
| COCCA EPP | af, cx, dm, gs, gt, hm, ki, nf, tl, mn, na, pe, sb, as, ms | EPP | Council of Country Code Administrators | |