About ONYX
A focused BlueSky scheduling tool, built by one person, for people who want a sharp tool instead of a marketing platform.
What ONYX is
ONYX schedules and publishes posts to BlueSky. It drafts new posts in your own writing voice using AI trained on your past public posts, builds threads, and shows you what actually works. That is it. No extra social networks, no inflated stats, no fake badges. One platform, done well.
Why BlueSky-only
Every other scheduling tool tries to cover eight platforms badly. Different APIs, different rate limits, different content formats, all duct-taped together. ONYX picks one platform and gets it right. If you live on BlueSky, this is built for you. If you do not, this is not the tool.
Who built it
ONYX is built solo. No VC funding, no growth team, no investor pressure to add features nobody asked for. That is on purpose. It means a fair price forever instead of starting cheap and jacking it up later.
How it stays cheap
Vercel hosts the frontend, Render runs the backend, Supabase holds the database, Upstash handles the job queue, and AI drafting runs on Gemini with free-tier fallback providers. Lean infrastructure keeps the floor low, so Pro can stay at $7 a month.
Security
Your BlueSky app password is AES-256-GCM encrypted at rest before it ever lands in the database. We never see your main BlueSky password — you should never share that with any third-party tool, including this one. Use BlueSky's app password feature instead; you can revoke it any time with one click.
Get in touch
Email support@onyxhq.us for support, feature requests, billing, or anything else. Reply target is within 24 hours on weekdays.