FAQ

Is Murk custodial?

No. Murk never holds your funds. Your keys derive everything, and neither we nor a relayer can move, freeze, or recover your assets.

Do I need a separate seed phrase?

No. Your Murk keys are derived from a signature made by your existing Solana wallet. Connect the same wallet on any device and sign to unlock the same private balance.

Is my deposit private?

The deposit itself is public (anyone can see you veiled a token). Privacy applies to everything you do afterward inside the pool. To break the link to your identity, deposit from a fresh wallet or wait and mix activity.

Can I get audited without giving up control?

Yes — that's what the viewing key is for. It grants read-only access to your notes and history but can't spend or reveal your spend key.

What happens if the website / relayer / indexer goes down?

You can still recover and move your funds with your wallet + an archival RPC + the open-source circuits + the deployed program. See Self-custody & recovery.

Why do I have lots of small notes?

Each private action produces "change," so your balance fragments over time. Use Consolidate to merge them so you can make large private spends.

What tokens are supported?

Any SPL token (and SOL). You can onramp any token into the pool; swaps route through supported pairs (Jupiter on mainnet).

How much does it cost?

Deposits cost gas (plus one-time rent for a new token). Private spends pay a break-even fee deducted from your note, or only gas if you self-submit a SOL transfer/withdrawal. See Fees.

Is it safe to use with real money?

Murk is non-custodial and enforces every private action with an on-chain zero-knowledge proof — no one, not even us, can move your funds. The circuits and program are independently audited and backed by a large adversarial test suite. As with any DeFi protocol, use good judgement: understand the risks, keep your wallet secure, and transact with amounts you're comfortable with.

How strong is the privacy?

Cryptographically strong on-chain (amounts, mints, and parties are hidden and proven, not trusted). But privacy is probabilistic and depends on the anonymity set and your habits. See How privacy works.

Is Murk open source?

Yes — the program, circuits, and client are open. Links are in the app footer and Settings.