CUSTODIAL · ISOLATED WALLETS · MASS PAYOUTS

B2B Wallet — crypto treasury for business.

A custodial wallet infrastructure for companies that need to send payouts, manage liquidity, and exchange crypto at scale. Think of it as a crypto current account — without the bank.

Get started Multi-wallet · Multisig · Custody
B2B Wallet dashboard with payouts, collecting wallets, and balances
TokenScope
Sumsub
Crystal
WatchData
EXMO
Watchblock
FinchTrade
Finery Market
TokenScope
Sumsub
Crystal
WatchData
EXMO
Watchblock
FinchTrade
Finery Market

B2B Wallet features

A treasury that moves

Every operation a finance team actually runs — holding, paying, swapping, reporting — in one consistent surface, with API parity throughout.

01 / WALLETS

ISOLATED CUSTODY

As many wallets as your operations need

A custodial crypto account inside Calypso. Private keys are held by Calypso; control of funds stays with you. Funds in each wallet are physically isolated — they don't mix with other merchants and don't move unless you move them.

A studio creates four wallets: one for EU payroll, one for Asia contractors, one for treasury reserves, and one project-scoped wallet for a new product line. Each lives on its own blockchain, named by purpose.
Learn more
Multiple business wallets on a blue gradient

02 / PAYOUTS

SINGLE & MASS

Pay one. Or pay 300

Send crypto to external counterparties — one at a time or in bulk. Single Payout for one-off transfers, Mass Payout for CSV/Excel uploads with hundreds of recipients. The system validates entries before processing.

A platform pays 152 contractors every Wednesday: uploads a CSV with addresses and amounts, the system flags two invalid rows, a manager approves the rest, and all transfers fire in one batch.
Learn more
Mass payout UI on a green gradient

03 / FEE ACCOUNT

SEPARATE FROM WORKING BALANCE

Fees go in one place

A dedicated account from which all transaction fees are deducted automatically. Service fee (Calypso) in the payout currency, network fee (blockchain) in the base coin. Supports a controlled negative balance — operations continue within a preset limit while you top up.

A finance team lets the Fee Account go negative mid-week — payouts keep running. They top up before the limit is reached, and operations never pause.
Learn more
Fee account UI on an orange gradient

The quieter capabilities.

Everything else a treasury needs day-to-day — deposits, internal swaps, exports — in the same surface.

— 01 / TOP-UP

Deposit by address or QR.

Token deposits share the same address as the base currency on that network. Sending tokens needs a small amount of the base coin to cover network fees.

USDTUSDCDAI

— 02 / TRANSFER & EXCHANGE

Move & swap without leaving Calypso.

Rebalance between your own wallets, top up the Fee Account, or convert one crypto asset to another — no external blockchain transaction needed.

Wallet → WalletWallet → FeeCrypto ↔ Crypto

— 03 / REPORTING

Full breakdown, any period.

Generate reports across all wallets for any date range. Filter by blockchain, download CSV or XLSX with deposits, withdrawals, exchanges, fees, and balances.

CSVXLSXAPI

Custody that's yours. Operations that are fast. Compliance that holds up

0

Shared addresses. Every wallet is physically isolated from every other client's funds.

Multisig

Manager approval flow. The person who created the payout cannot approve it themselves.

100%

API parity. Every wallet operation in the dashboard is also available via the Calypso API.

Frequently Asked Questions

Find answers to common questions about Calypso Pay

What is B2B Wallet?
B2B Wallet is a custodial crypto treasury tool for businesses that need to manage corporate funds in crypto: send payouts to contractors, hold reserves in separate wallets, and exchange assets — all without going through external exchanges or banks.
Who holds the private keys?
Calypso holds the private keys. Funds are stored in isolated custody — they don't mix with other merchants' assets. You retain full control over when and where funds move.
What's the difference between a wallet and an account?
An account is a top-level container for organizing your business. Each account can have unlimited wallets. Wallets physically separate funds — money in one wallet can't be accessed from another.
Can I require approval before a payout goes through?
Yes. You can configure payout confirmation so that every withdrawal must be reviewed and approved by a manager before it's processed.
What happens if my Fee Account runs out of funds?
Operations can continue within a preset negative balance limit. Once the limit is reached, payouts pause until the Fee Account is topped up.
Can I pay multiple contractors at once?
Yes — use Mass Payout. Upload a CSV or Excel file with recipient addresses and amounts. The system validates the data before processing; incorrect addresses are rejected automatically.
Which blockchains are supported?
B2B Wallet supports all major networks available on Calypso Pay, including Ethereum, Tron, and Bitcoin. The specific list depends on your account configuration.
Can I use B2B Wallet via API?
Yes. All wallet operations — creating wallets, initiating payouts, transfers, and exchanges — are available via the Calypso API.

Get demo account

Get started
Demo view