I have the following artifacts available for trade. Ones with no uses left indicated mean I only have a few to spare (i.e. 10 or less). The hallows bane tricks and orbital mass disruptors are given by sharing. I also have one artifact warehouse and over 100k em. I prefer ctp but will also accept ku or aid.

Hallows Bane Trick (Uses Left: 14)
Halcyon Trap (Uses Left: 201)
Crimson Obelisk (Uses Left: 946)
Tachyon Cylinder
Grav-Whip Trap (Uses Left: 29)
Omicron Mine Trap (Uses Left: 143)
Orbital Mass-Disruptor (Uses Left: 49)
Calming Amplifier (Uses Left: 121)
Cloning Pods (Uses Left: 462)
Spy Probe - Weapons (Uses Left: 296)
Spy Probe - Defenses (Uses Left: 137)
Quantum Firewall Trap (Uses Left: 158)
Subspace Seeker (Uses Left: 60)
Sentry Guards
Longevity Serum (Uses Left: 77)
Continuum Beacon (Uses Left: 55)
Planet Vortex Deflector (Uses Left: 190)

I will also trade for artifacts I want:
viewtopic.php?f=9&t=18217