77.35
63.17
46.58
23.36
84.89
29.56
9.64
0.31
78.59
20.93
97.23
72.73
92.43
48.84
93.52
35.91
31.37
76.46
3.86
7.12
91.72
78.23
50.70
1.76
66.38
68.83
32.58
36.46
90.46
21.43
72.23
35.94
60.44
4.39
44.99
47.41
34.10
43.42
4.30
4.76
52.95
38.74
54.86
41.95
13.54
37.94
80.82
94.94
43.04
63.16
45.78
70.67
9.07
14.11
64.90
93.25
61.96
92.45
89.47
73.84
89.82
1.75
53.76
23.04
48.55
65.11
33.89
55.04
14.21
22.44
63.28
47.30
92.12
39.08
14.59
5.93
69.87
54.10
6.29
47.58
32.71
85.69
45.22
11.66
89.72
35.24
19.74
22.87
6.29
42.93
44.08
97.92
10.65
15.22
5.68
51.62
Powered by Arcium

Private
peer-to-peer
OTC trading

Execute large trades with complete privacy. No slippage, no front-running, no information leakage.

Start Trading→V.0.1.0 DEVNET

The OTC desk without third parties

Don't rely on others to execute large trades for you.
Undesk makes private deals possible without the middlemen.

Traditional OTC

  • Third parties hold your funds
  • Requires trust in intermediaries
  • Risk of information disclosure

Undesk

  • Full control of your funds
  • Trustless on-chain trading
  • Encrypted, private execution

How It Works

Posting, matching, and settlement — everything is encrypted.

For Deal Creators

Post your deal

Define your trade: assets, size, and your price. Deposit funds. Everything is encrypted before it leaves your wallet.

Receive blind offers

Counterparties submit offers without seeing your price or size. Offers that don't meet your threshold are rejected without information leaks.

Execute the deal

Once enough valid offers arrive, the trade is executed. Settlement is on-chain and private. You always get your price or better.

For Offerors (Makers)

Browse open deals

See available deals and their assets. You won't see price or size, only what you need to decide if you're interested.

Submit your offer

Make a blind offer with your desired price and size. If your offer passes the creator's threshold, it gets silently added to the deal.

Get matched

If the deal executes and your offer matches, you receive exactly your desired price or better. If it doesn't, your funds are returned.

End-to-end privacy and security

Powered by Arcium's confidential computing network. Your trades are encrypted and processed using multi-party computation. No single party ever sees your data.

Protocol details→

Private by design.

Fully on-chain, non-custodial trading that never ties back to your wallet.

Everything is encrypted.

Deals, offers, balances: all data and execution is end-to-end encrypted by Arcium's MPC network.

Full self-custody.

All funds are escrowed on-chain through private shared pools, always retrievable.

FAQ

Everything you need to know about Undesk

Undesk is a private over-the-counter trading platform built on Solana. It uses Arcium's confidential computing network to enable encrypted order matching. Your trade intentions stay completely private, even during execution.
Your trade data is encrypted end-to-end using Arcium's multi-party computation (MPC). No single party, not even the network operators, can see your order details.
You can trade any SPL token on Solana. If you can't find your token in the list, you can simply specify its mint address, also known as Token Address (TA) or Contract Address (CA), when creating a deal.
There's no minimum trade size, but Undesk is designed for larger trades where privacy and zero price impact matter most.
Trades settle through encrypted execution inside the MPC network. Shared pool user balances are updated, and users may withdraw their funds at any time.
Connect your Solana wallet, then either create a new deal with your terms or browse and accept existing deals from other traders.
All deal, deposit, and balance accounts are created using deterministically derived private addresses paired with random keypairs for frontrunning protection. Accounts on mainnet will be created through a private SOL pre-deposit scheme using Privacy Cash.
Undesk is our first step towards fully private OTC trading. We are building an RFQ system on top of Undesk that will allow you to make and receive quotes through a fully private market structure. Coming soon.