Off-ramp without
the interrogation.

How it works

Settl is a no-KYC crypto off-ramp on Solana with built-in privacy layers that sever the link between your wallet and your card spend. As private as your on-chain activity should be.

The problem

Crypto off-ramps are broken in two ways.

KYC off-ramps demand your identity.

Passport, selfie, proof of address. You built wealth pseudonymously on-chain, then hand over your real identity to spend it.

No-KYC cards still leak your wallet.

Existing services skip ID checks but fund cards directly from your wallet. Anyone watching the chain can trace: wallet → funding address → spend.

Neither preserves privacy. Settl fixes both.

How it works

Four steps from wallet to spend.

Every stage severs the connection between your on-chain identity and your real-world purchases.

Connect Wallet

Phantom, Solflare, Backpack. No sign-up. No email. No KYC.

Privacy Layer

Funds pass through single-use deposit addresses, a shielded pool, and time-delayed settlement.

Non-Reloadable Card

Instantly issued virtual Visa/Mastercard. Use anywhere. Expires on use.

Off-Ramp Complete

Your crypto is now fiat. No wallet link. No trace back to you.

Privacy architecture

Five layers between your wallet and your spend.

Each layer is designed to defeat a specific class of surveillance.

LAYER 1

Address Isolation

Every deposit generates a unique single-use Solana address. Your main wallet never touches card infrastructure. No wallet clustering.

LAYER 2

Shielded Pool

Deposits enter a commingled pool. Pedersen commitments verify balances without revealing amounts. Withdrawals cannot be linked to specific deposits.

LAYER 3

Zero-Knowledge Proofs

Groth16 proofs verify sufficient funds, valid withdrawals, and no double-spending — without revealing which deposit belongs to which withdrawal.

LAYER 4

Timing Obfuscation

Randomized settlement delays between deposit and card issuance defeat timing correlation attacks.

LAYER 5

Card Isolation

Each non-reloadable card is standalone. No card history. No spending profile. No behavioral fingerprint.

Flow

User Wallet

→

Single-Use Address

→

Shielded Pool (ZK)

→

Time-Delayed Settlement

→

Card Issuer

→

Virtual Card

→

Spend Anywhere

— Supported assets

Deposit any Solana asset.

USDC

SPL stablecoin

USDT

SPL stablecoin

— Fees

Transparent. No hidden spread.

Deposit to shielded poolFree

Card issuance2 – 4%

Privacy layerIncluded

Comparison

Settl vs. the rest.

Feature	Settl	No-KYC cards	KYC off-ramps
Identity required (KYC)		Sometimes
Wallet linked to card funding
On-chain trail broken
Timing correlation defense
Single-use / ephemeral cards
Non-custodial funds		Sometimes
Privacy layers	5	0–1	0

No-KYC card providers vary: some verify email/phone or geolocation and fund cards directly from a linked wallet. KYC off-ramps tie every card and payout to a verified identity file. Neither breaks the wallet ↔ spend link.

Security

Nothing to trust. Nothing to leak.

Non-custodial

Funds live in smart contracts, never held by Settl.

Open source

All contracts publicly auditable.

ZK proofs

Cryptographic guarantees, not trust assumptions.

No user data

No accounts, no emails, no identity to leak.

Ephemeral cards

Card details generated client-side, never stored.