EchoMind
Beta coming soon

Win the reply game on X, in your own voice.

EchoMind is a browser extension that lays an assistant right over your X timeline. It points you at the best tweet to reply to and pre-writes the reply the way you'd write it. Get on the early-access list.

No spam. I'll only write when the tool is ready. By joining you consent to receiving those launch emails. See our Privacy Policy.

You're in.

position #…

3 founders on the waitlist
Works in Google Chrome Microsoft Edge Brave Firefox · desktop only (no mobile app)

// what you get

Everything you need to win on X

01 · autopilot

The Reply Sidekick

It finds the best tweet to reply to, pre-drafts the reply, and lines up the next one. Replying becomes a queue you click through.

02 · originals

Originals + an ideas feed

Draft standalone tweets and scroll a feed of tweet ideas, all in your voice, from a separate compose model trained on your own posts.

03 · grounded

Sounds like you, not a bot

Every draft is grounded in your real tweets, your rhythm, your tics, so it reads as you, never generic AI.

04 · your call

Pick the angle

One tap steers the draft: crack a joke, push back, add a hot take, ask a sharp question, or just play it straight. Same voice, the angle you want.

05 · you're in control

You stay in control

EchoMind never acts on X for you. No auto-posting, no auto-likes, no auto-follows, no auto-scroll. It only drafts and suggests. You click, you edit, you post. (Automating actions would violate X's policy.)

06 · your keys

Bring your own keys

You plug in your own OpenAI or Anthropic API key. Drafts go straight from your browser to the provider on your key, so there's no middleman and you only ever pay them for what you use, at cost.

// before you ask

How does it actually work?
You install the extension, paste in your own OpenAI or Anthropic API key, and point it at your voice (either import your X archive or just let it learn from your posts as you browse). After that it rides along on X: it reads the timeline you're already looking at, flags the tweets worth replying to, and drafts a reply in your voice. You read it, tweak it if you want, and hit post. It's a desktop browser extension, so you run it on your computer, not the phone app.
Is this cheating?
Not really, unless spellcheck and thesauruses count too. The thinking is still yours. EchoMind learns how you already write and gives you a head start on saying it, but you pick what's worth replying to, you edit every word, and the takes are your own. You're not borrowing a stranger's voice or faking expertise you don't have, it's literally your voice, drafted a little faster. Every writer leans on tools to get the words out. This is just one more.
Won't this get me banned?
It shouldn't. EchoMind never posts for you and never scrapes anything. It only reads the timeline X already loaded on your screen, the same posts you're looking at. No bots, no private APIs, no auto-scrolling, nothing happening behind your back. You click, you read the draft, you decide whether to send it. It just means you're not staring at an empty reply box. Common sense still applies, though: don't spam, and use it like a normal person would. If you go wild and get your account limited, that's on you, not the tool.
Is my data private?
Yes, and not because I promise it but because of how it's built. There's no EchoMind server. Everything runs in your browser, your posts stay on your own machine, and you plug in your own AI key. The only thing that ever leaves your browser is the text going straight to whichever AI you picked (OpenAI or Anthropic), on your key. It never passes through me, and it only ever learns from your own posts.
Do I need X Premium?
Nope. There are two free ways to teach it your voice. You can download your X archive (Settings → Your account → Download an archive of your data; X emails it to you within a day or so) so it learns your whole history at once, or just let it pick up your style from your own posts as you scroll. Either one works, both are free. No Premium, no paid export.
When do I get access?
Soon. I'm finishing off the beta right now. Drop your email and I'll tell you the second it's ready. First on the list, first in.

Get on the list. Beta coming soon.

No spam. I'll only write when the tool is ready. By joining you consent to receiving those launch emails. See our Privacy Policy.

You're on the list.

position #…. Watch your inbox.

3 founders on the waitlist