Taos implements a few new kernel calls, for use where importing OS or a related, RPC-based interface would be undesirable or impossible. Until man pages are written, consult the implementation modules:
| Name | # | Implementing package/module |
| copy | 7 | fs/UxFile.mod |
| nsenumerate | 13 | fs/UxFile.mod |
| checkpw | 18 | ux/UxPro.mod |
| terminate | 63 | ux/UxPro.mod |
| getpw | 77 | ux/UxPro.mod |
| dummy | 103 | ux/UxAS.mod |
| reservetraps | 107 | ux/UxAS.mod |
| strace | 147 | ux/UxPro.mod |
| getsignal | 115 | ux/UxPro.mod (obsolete) |
| getspaceinfo | 119 | ux/UxPro.mod (obsolete) |
| startnewspace | 132 | ux/UxPro.mod (obsolete) |