A finished, pre-launch AI writer for X: a Chrome extension that drafts replies, quotes and posts inside X in each user's own voice, sold with its hosted backend, Stripe billing, the domain starlingwriter.com, full source code and 30 days of handover help (Flippa escrow: https://flippa.com/14221920).
Founder name
Michael Shadpour
Tech Stack
Chrome extension: TypeScript, Manifest V3 (WXT). Backend: Python 3.11, FastAPI, SQLite. OpenAI API, Stripe, Docker (Fly.io config)
Expenses
About $30/month to run (hosting, storage, domain, email) plus pay-as-you-go OpenAI usage
Number of users
0
Published
October 12, 2026
Asking price
$1.95k
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