01
What was unclear
The hard part was not generating text. It was working out how a reply could sound like the creator, stay fast enough for daily use, and sit inside a real product with separate accounts and usage state.
SaaS · Fullstack · 2025
Reactify
AI replies that sound human. Growth tool for creators on X.
Overview
A growth tool for creators on X: generated replies that carry the creator's own voice, built for crypto and creator audiences. Auth, API layer and account state included.
Visit live siteRole
Fullstack, auth, API layer, UI
Stack
- Next.js
- Node.js
- APIs
- Auth
Year
2025
The problem
Reply-based growth on X works, but generic AI output reads like a bot and costs creators credibility.
The approach
- 01Built a prompt and context layer that carries the creator's own voice into each generated reply.
- 02Wired auth and usage handling so accounts stay scoped and metered.
- 03Kept the compose surface fast, pick a tone, get options, edit, post.
The messy middle
From an unclear ask to something real.
02
What I figured out
I designed the prompt and context layer around voice, reduced the interaction to tone, options, edit, and post, then connected authentication, the API layer, and usage handling around it.
03
What I delivered
A complete SaaS surface for creators on X, including account access, voice-aware reply generation, usage state, and a focused compose experience.
The result
Replies that read as human, tuned for crypto and creator niches.
Full SaaS surface: auth, generation, account state.
Continue through the work