Halyard
Block912,017· 12 ms
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Security
Proof, not promises.
Every month an outside auditor checks that what we hold is more than what you are owed. Here is how, and what else stands between you and a bad day.
We publish a Merkle-tree attestation of every customer balance against the on-chain addresses we control.
Anyone can verify their own leaf.
Multi-signature vaults in three jurisdictions. Hot wallets hold only what the day's withdrawals need.
For a breach that is ours, never yours. Funded 2021, topped up from fees every quarter.
- Sep 2026Proof of reservesHacken
- Jun 2026Smart-contract auditTrail of Bits
- Mar 2026SOC 2 Type IIPrescient Assurance
- Nov 2025Penetration testCure53
- May 2025Proof of reserves methodology reviewMazars
- Passkeys and hardware keys
- Two-factor on every withdrawal
- Withdrawal allow-list with a 24 h hold
- Anti-phishing code in every email
- Device and session list with one-tap revoke
- Login alerts for new countries
Find something real and we pay. Scope: the exchange, the wallet, the API.
Security
Proof, not promises.
Every month an outside auditor checks that what we hold is more than what you are owed. Here is how, and what else stands between you and a bad day.
We publish a Merkle-tree attestation of every customer balance against the on-chain addresses we control.
Anyone can verify their own leaf.
Multi-signature vaults in three jurisdictions. Hot wallets hold only what the day's withdrawals need.
For a breach that is ours, never yours. Funded 2021, topped up from fees every quarter.
- Sep 2026Proof of reservesHacken
- Jun 2026Smart-contract auditTrail of Bits
- Mar 2026SOC 2 Type IIPrescient Assurance
- Nov 2025Penetration testCure53
- May 2025Proof of reserves methodology reviewMazars
- Passkeys and hardware keys
- Two-factor on every withdrawal
- Withdrawal allow-list with a 24 h hold
- Anti-phishing code in every email
- Device and session list with one-tap revoke
- Login alerts for new countries
Find something real and we pay. Scope: the exchange, the wallet, the API.
Security
Proof, not promises.
Every month an outside auditor checks that what we hold is more than what you are owed. Here is how, and what else stands between you and a bad day.
We publish a Merkle-tree attestation of every customer balance against the on-chain addresses we control.
Anyone can verify their own leaf.
Multi-signature vaults in three jurisdictions. Hot wallets hold only what the day's withdrawals need.
For a breach that is ours, never yours. Funded 2021, topped up from fees every quarter.
- Sep 2026Proof of reservesHacken
- Jun 2026Smart-contract auditTrail of Bits
- Mar 2026SOC 2 Type IIPrescient Assurance
- Nov 2025Penetration testCure53
- May 2025Proof of reserves methodology reviewMazars
- Passkeys and hardware keys
- Two-factor on every withdrawal
- Withdrawal allow-list with a 24 h hold
- Anti-phishing code in every email
- Device and session list with one-tap revoke
- Login alerts for new countries
Find something real and we pay. Scope: the exchange, the wallet, the API.
Questions
Before you trade.
Something else? Write to support@halyard.exchange. A person answers within one business day.
Yes. The quote includes the fee, and a market order fills against the live book. For a fixed price, place a limit order.
TradingThe matching engine handles an order in under a millisecond. Network settlement for withdrawals depends on the chain.
TradingIn the Halyard wallet, yes: it is self-custody, and we cannot move your funds. Balances on the exchange are held in segregated custody wallets.
WalletNobody can recover a self-custody wallet without the seed. Write it down, store it in two places, and test recovery with a small amount.
WalletTier 1 is 0.10 % maker and 0.20 % taker. Volume tiers lower it to 0.02 % / 0.06 %. Deposits are free; withdrawals pay the network fee.
FeesNo. The fee schedule is the only fee. The spread you see on the book is the market's, not ours.
Fees98 % in cold storage across three jurisdictions, 2 % in hot wallets for withdrawals, all covered by monthly proof of reserves.
SecurityYes, $120M funded from fees, covering losses from a custody failure. It does not cover market losses.
SecurityResidents of 140 countries. The sign-up flow checks your country first, before any documents.
AccountMost accounts are verified in under 10 minutes. Manual reviews take up to one business day.
Account
Questions
Before you trade.
Something else? Write to support@halyard.exchange. A person answers within one business day.
Yes. The quote includes the fee, and a market order fills against the live book. For a fixed price, place a limit order.
TradingThe matching engine handles an order in under a millisecond. Network settlement for withdrawals depends on the chain.
TradingIn the Halyard wallet, yes: it is self-custody, and we cannot move your funds. Balances on the exchange are held in segregated custody wallets.
WalletNobody can recover a self-custody wallet without the seed. Write it down, store it in two places, and test recovery with a small amount.
WalletTier 1 is 0.10 % maker and 0.20 % taker. Volume tiers lower it to 0.02 % / 0.06 %. Deposits are free; withdrawals pay the network fee.
FeesNo. The fee schedule is the only fee. The spread you see on the book is the market's, not ours.
Fees98 % in cold storage across three jurisdictions, 2 % in hot wallets for withdrawals, all covered by monthly proof of reserves.
SecurityYes, $120M funded from fees, covering losses from a custody failure. It does not cover market losses.
SecurityResidents of 140 countries. The sign-up flow checks your country first, before any documents.
AccountMost accounts are verified in under 10 minutes. Manual reviews take up to one business day.
Account
Questions
Before you trade.
Something else? Write to support@halyard.exchange. A person answers within one business day.
Yes. The quote includes the fee, and a market order fills against the live book. For a fixed price, place a limit order.
TradingThe matching engine handles an order in under a millisecond. Network settlement for withdrawals depends on the chain.
TradingIn the Halyard wallet, yes: it is self-custody, and we cannot move your funds. Balances on the exchange are held in segregated custody wallets.
WalletNobody can recover a self-custody wallet without the seed. Write it down, store it in two places, and test recovery with a small amount.
WalletTier 1 is 0.10 % maker and 0.20 % taker. Volume tiers lower it to 0.02 % / 0.06 %. Deposits are free; withdrawals pay the network fee.
FeesNo. The fee schedule is the only fee. The spread you see on the book is the market's, not ours.
Fees98 % in cold storage across three jurisdictions, 2 % in hot wallets for withdrawals, all covered by monthly proof of reserves.
SecurityYes, $120M funded from fees, covering losses from a custody failure. It does not cover market losses.
SecurityResidents of 140 countries. The sign-up flow checks your country first, before any documents.
AccountMost accounts are verified in under 10 minutes. Manual reviews take up to one business day.
Account