| Name | CR | Type | Environment |
| Aeon Guard | 3 | humanoid (human) | any (Azlanti Star Empire) |
| Aeon Guard, Aeon Guard Specialist | 7 | humanoid (human) | any (Azlanti Star Empire) |
| Aeon, Tekhoinos | 10 | outsider (aeon, extraplanar) | any (Outer Planes) |
| Akata | 1 | aberration | any |
| Akata, Void Zombie | 1 | undead | any |
| Anacite, Anacite Ambassador | 6 | construct (technological) | any (Aballon) |
| Anacite, Anacite Laborer | 7 | construct (technological) | any (Aballon) |
| Anacite, Anacite Predator Drone | 10 | construct (technological) | any (Aballon) |
| Anacite, Anacite Wingbot | 1/2 | construct (technological) | any (Aballon) |
| Angel, Barachius | 7 | outsider (angel, extraplanar, good) | any good-aligned planes |
| Animated Armor, Animated Lashunta Mind Mail III | 16 | construct (magical, technological; armor) | any |
| Animated Armor, Animated Lictor Hellknight Plate | 5 | construct (magical, technological; armor) | any |
| Apari | 7 | vermin | temperate or warm plains |
| Apari, Apari Constituent | 2 | vermin | temperate or warm plains |
| Archon, Power Archon | 5 | outsider (archon, extraplanar, good, lawful) | any (Heaven) |
| Azata, Tritidair | 8 | outsider (azata, chaotic, extraplanar, good) | any (Elysium) |