Get paid without exposing your client list
A client paying an invoice should not see your other clients, your rates or your savings. Each invoice gets its own address.
What Sepia is for
Unseen
Solana made on-chain payments fast enough to feel like an app. It also made every one of them permanent and public. Sepia lets you move money there unseen, without handing your whole financial history to whoever you share an address with.
The problem
One address tells everything.
On Solana, an address is a public ledger page. Once someone knows yours, a block explorer shows them your balance, every incoming and outgoing transfer, and every wallet you ever dealt with. That history never expires.
A fresh address for each payment sounds like the fix, but it breaks in practice. The new address holds no SOL to pay its own fee. Fund it from your main wallet and the link is back on Solscan for anyone to see.
Sepia closes both gaps: a new address for every payment, created automatically, and a relayer that signs as fee payer when you move the money out.
Who it's for
Anyone who moves money on-chain
Six situations where a public wallet costs real money, safety or leverage.
A tip link in your bio, safely
Fans send tips to your Sepia link. Nobody can track how much you earn or follow the money to your main wallet.
Settle deals without being copied
Receive OTC settlements and profits on unlinked addresses, so your size and timing do not become someone else's signal.
Pay contributors quietly
Team cashboxes (Phase 2) let a project pay people without publishing a salary table to the whole chain.
Take payments at the counter
A printed Solana Pay QR takes SOL, USDC or any SPL token. Customers never learn your turnover.
Split rent, send gifts
Friends and family pay you without learning your balance. Your money stays your business.
Not a mixer
Private by design, clean by design.
Mixers pool strangers' money and have been sanctioned for it. Sepia never touches a pool.
| Property | Mixer | Sepia |
|---|---|---|
| Funds from many users in one pool | ||
| Protocol holds your money | ||
| Each payment to its own address | ||
| Open, documented key scheme | ||
| Share a viewing key with an auditor |
Principles
Four rules Sepia does not break
Non-custodial
Keys are derived in your browser. Sepia never holds funds or private keys.
No pooled funds
Every payment goes directly to an address that belongs to the recipient.
Open scheme
The ERC-5564 dual-key design on ed25519, fully documented so any wallet or tool can implement it.
Opt-in disclosure
Share your viewing key with an accountant or auditor whenever you need to prove a payment.
Why Solana
The busiest place to pay in public.
A stealth address on Solana is just an ed25519 key, the same kind Phantom already holds. Nothing new for wallets to learn: the one-time address signs like any other account. Fees are a fraction of a cent, so a fresh address per payment costs nothing worth counting.
Solana is also where on-chain money moves most: USDC transfers, pump.fun launches, creator tips. All of it is one Solscan search away. Sepia launches $SEPIA on pump.fun and accepts any SPL token as payment.
- Wallet-native. Works with Phantom, Solflare, Backpack and any Wallet Standard wallet.
- Native fee payer. The relayer covers your withdrawal fee inside the transaction itself.
- Every SPL token. SOL, USDC and memecoins all land on the same link.