THE TRUST LAYER FOR EMAIL
Everything is on trust.
Kith ranks every email sender by where they sit in your trust graph. People you email, and strangers your trusted contacts vouch for, reach your inbox. Everyone else waits.
Hover a green sender to downvote and watch their path drop. A stranger with no path meets a red gate: open it with $5, or whatever you set.
Email lost the ability to tell who is real.
Spam keeps scaling.
The volume climbs every year, and the filters that sort it are always a step behind.
You cannot tell a human from a bot.
Nothing inside a message proves a real person wrote it, and AI now writes personal cold email at scale.
A verified domain is still a stranger.
SPF, DKIM, and DMARC prove which domain sent a message. They say nothing about whether you wanted to hear from it.
Decentralized PageRank for email, with a karma system and microtransactions.
Three ways a sender earns your inbox.
Trusted graph
Scored by who vouches, and how close.
A sender's score is how much trust reaches them through your whole graph, so who vouches for someone counts more than how many. It runs on your mailbox alone, private to you.
- Warm intros through people you trust
- Private to your mailbox
- Spam farms score zero
- alice@acme.com92
- ben@stripe.com87
- carol@linear.app78
- dan@notion.so71
- omar@figma.com64
- spam@offers.net2
- bot@ai-mail.io0
Trust flows inward: the closer a sender sits to you, the higher their score. Hover anyone to light up who they know.
Karma
You keep your own graph honest.
Upvote a sender and they gain standing with you. Downvote one and they lose it, right away, and the people who trust you get a quiet heads-up. Every score is personal, so no mob can pile on.
- One click, up or down
- Weighted by how much you are trusted
- Personal to your own inbox
to: you · again
they lose their standing with you, and only you
- the sender, for you
- blocked right away
- people who trust you
- get a quiet heads-up
- everyone else
- never knows
A downvote blocks the sender for you and gives the people who trust you a quiet heads-up. It stays inside your circle.
Proof-of-Value
No trust path? Prove it is worth a look.
Some good mail comes from people who know no one you know. They reach you by doing something an automated sender will not bother to fake: stake a little money, pass a check, or do real work you asked for.
- A refundable bond
- A human check
- Real work you set
Refunded when you reply. Forfeits are burned, so you never profit from saying no.
Clearing a gate buys one message a look, and adds nobody to your graph. Paying never overrides a block or a warning from someone you trust.
Paying never overrides a block or a warning from someone you trust. It only buys one message a look.
Two questions.
- Does Kith read your emails?
- Nope, nope, nope. We do not read email contents. We only use the from, to, and datetime, and those are encrypted.
- What is Kith's vision?
- Proof-of-human. A way to tell real people and consented tools from a flood of AI, without reading a word.
Put your inbox back on trust.
Be the first to run Kith on your own mailbox.