An X reply generator that still sounds like you
Draft under the post. Edit the final line. Prefer threads that are still heating up.
Synapt is a Chrome extension AI reply generator for X: start from your tone and Knowledge Base, then ship a reply you actually wrote the last pass on, while the conversation still has oxygen.
The problem
Most reply generators fail the trust test
Speed without voice is just faster spam.
Generic drafts get skipped
“Great point!” and em-dash essays signal AI. People scroll past them.
Wrong thread, perfect sentence
A clever reply on a cold post still dies. Timing and velocity matter as much as wording.
Tab-switching kills the moment
Copying a post into ChatGPT while the thread moves on is how you arrive late.
How it works
From install to first reply
Minutes, not a migration. No content calendar to rebuild. Just the feed you already live in.
Install the Chrome extension
Add Synapt from the Chrome Web Store. Sign in, paste your API key once. It lives under the posts you already read.
Spot what's still heating up
On X, see view velocity on posts in real time. Filter toward Fired Posts when you want signal, not another cold scroll.
Add a short Knowledge Base
Who you are, what you build, how you sound. Optional, but it keeps drafts from reading like generic AI.
Draft, edit, ship
Generate under the post, tighten the line, post while the thread is still moving. You stay in control of every send.
FAQ
Reply generator FAQs
Straight answers. No marketing fog.