Privacy protocols

Four privacy protocols, each hiding something specific. Confidential crossing on NEAR Intents and Monero are live today; the Solana ZK pool and Zcash shielded are coming soon. See the full cost before you start. Velum adds 0% to any of them.

Built in
Confidential crossing
Deposit not publicly linked Payout

Confidential crossing on NEAR Intents

Your deposit and your payout aren't publicly linked. Automatic wherever NEAR allows it, so there is nothing to switch on. Costs the same as any NEAR Intents swap.

Automatic · 0.2% NEAR fee
Zero-knowledge
Solana ZK pool
Privacy Cash · proof hides which deposit paid which withdrawal
Fresh wallet in your browserkeys stay here

Solana ZK pool Soon

A zero-knowledge proof hides which deposit paid which withdrawal. The pool is Privacy Cash. Round amounts blend in best; the busier the pool, the stronger the cover.

About 3–5 min · 0.35% + about $0.63
Shielded
Zcash shielded
Sender, receiver and amount hidden inside the shielded pool
24 wordssaved by you, never seen by Velum

Zcash shielded Soon

Your coin becomes shielded ZEC in a wallet made in your browser, where the sender, the receiver and the amount are hidden, then leaves it as the coin you want.

Several minutes · Zcash network fees
Ring signatures
Monero
Sender, receiver and amount hidden, built into the chain
Minimumabout 50 USD

Monero

Monero hides the sender, the receiver and the amount (ring signatures and stealth addresses). On its own it is a single deposit; your coins are held for a few minutes on the way.

About 15 min · spread in the rate
Standard
A public swap
Best price, seconds to minutes. Anyone reading the chain can follow it.

A standard swap

No step switched on. A normal public swap at the best price, straight on NEAR Intents or Relay. Best for swaps where speed and price come first.

Seconds to minutes · protocol fee only
SOLZK poolMoneroETH
NEAR Intents and Relaycarry the legs between steps

Stack them your way

Use one or several, in the order you choose. The route draws the path your money takes, and the cost and the expected time include every step. Works in Swap and in Pay.

Deep link: /swap?…&privacy=zk,xmr

Built in, every time

What every private swap gets, whichever protocols you switch on.

01. Wallets made in your browser

The steps that need a wallet make one here. Keys are encrypted, never leave it except in the recovery file you save, and each wallet ends empty.

02. No account, no profile

Nothing to sign up for, no wallet to connect, no analytics. There is no Velum-side profile tying your swaps together.

03. Providers see our server, not you

Confidential NEAR requests, the Monero step's orders and the ZK pool's withdrawals go through Velum's pass-throughs. Velum keeps no record of them.

04. Cost and time, before you start

Every step's time and cost are in the total the swap page shows, in dollars. Velum fee 0%.

Who sees what

Everyone who touches a swap, and what each one can see. Privacy protocols break the public links between your wallets; they don't make you anonymous.

Anyone reading the blockchain

Every on-chain transaction: which addresses sent and received, the amounts and the times. In a standard swap that ties the wallet you paid from to the address you receive in. That is the link the privacy protocols break.

The protocols

NEAR Intents or Relay issues your deposit address and fills the swap. Each sees the addresses and amounts of the part it carries. Privacy Cash's pool holds SOL between deposit and withdrawal; the Monero step's services each see one side, never both.

Velum's servers and your device

Small pass-throughs forward some requests and store none of it. Your browser keeps a running swap and, for privacy steps, the temporary wallets' keys, encrypted and here only. Like any wallet, it relies on a clean device.

Switch one on and see the full cost before you start.

On the swap page, the Privacy box has one switch per step. Turn on as many as you like, set their order, and the route draws the path your money takes.

  • Works in Swap and in Pay
  • Each failed step is retried, then refunded
  • Velum adds 0%