Private beta — I'm onboarding the first few teams by hand
M

The self-driving
inbox.

Mithril triages your Slack and Gmail, drafts every reply with real context, and finds anything anyone ever said. You just hit send.

I read every message myself · free during beta
Mithril
GmailSlack
Messages waiting on you5 need a reply
DO
Devin OkaforSlack DM2h ago
Can you review the auth-rewrite timeline before standup? Blocked on your call.
PN
Priya Nair · AcmeGmail5h ago
Re: Pilot agreement — we have two redlines on the data clause. Can we hop on a quick call this week?
S
Sam · #eng-platform@mention40m ago
@you PR #482 is green, just needs your approve to merge before the freeze at 5pm.
JL
Jordan (investor)Gmail1d ago
Quick check-in — and I want to intro you to a design partner who fits your ICP exactly. Free this week?
M
Maya · #designSlack DM3h ago
dropped the new onboarding flow in Figma — lmk if the empty state reads right to you

The problem

You're interrupted every couple of minutes.

Slack was built for humans talking to humans. You don't work that way anymore — you work across channels, across inboxes, alongside agents, all at once. The tools didn't keep up. Mithril is what comes next.

~275
interruptions a knowledge worker juggles in a day
~270
messages and emails the average worker gets daily
of the day lost searching for what someone already said
58%
say they feel anxiety opening their inbox

Figures from widely-cited workplace studies — directional, not exact.

How it works

Type what you want. Send what matters.

01

Connect

Link Gmail and Slack in two clicks. Read-only where it counts. We never train on your data.

02

Open your queue

Every message you owe someone — ranked by who's actually blocked, each with a draft already written.

03

Send or skip

Edit the draft, pick a different tone, or dismiss it. Drafts only — Mithril never sends without you.

The moat

Context is the whole product.

Gmail's smart reply only sees Gmail. Slack AI only sees Slack. Mithril sees both — plus your meetings and docs — so the draft actually knows what you're talking about.

One unified reply queue
Slack DMs, @-mentions and Gmail threads, ranked together. Nobody else has this.
Drafts that know the backstory
Pulled from every channel, thread, and email — not just the one you're staring at.
Find anything, with citations
Ask a question, get the answer and where it was said. Stop scrolling.

For engineers

Living in the terminal?

Mithril is coming as an MCP server — triage your inbox from Claude Code without leaving the terminal.

claude code
$ claude mcp add mithril

> what do I owe people today?

 5 messages waiting · 3 drafted
  · Devin — auth timeline (slack)
  · Priya @ Acme — redlines (gmail)
  · #eng — PR #482 approve (slack)

Talk to me

Reply, don't refresh.

I'm a solo founder onboarding the first few teams myself — no waitlist, no form. Message me directly and I'll get you set up. I genuinely want to know who you are and what's drowning your inbox.

I read every one myself · usually reply within a few hours
Mithril
we don't train on your dataWhatsAppEmail
Built by a solo founder who got tired of hating Slack.