In their X bio “14 yrs dev. 20+ projects shipped. 2 exits. · Currently building: · ~3k MRR”
serx (@serxzsz) is the founder of Fireply AI. serx builds solo. The highest publicly reported figure: Fireply AI reported $1,378 MRR, according to its TrustMRR page (verified by the payment provider) on November 1, 2026.
serx is building Fireply AI (AI agent that writes and posts replies on X in your voice to grow your account automatically).
How much does Fireply AI make?
Fireply AI reported $1,378 MRR, according to its TrustMRR page (verified by the payment provider) on November 1, 2026. It is a publicly reported figure, not an estimate by Sell Micro SaaS.
Where can I follow serx?
You can follow serx on X at @serxzsz and on their website (fireply.ai).