Release Notes

Introducing the Offloader Wallets API

Offloader Wallets are automated crypto-to-fiat conversion wallets that let your customers receive stablecoins and have them automatically settled to a linked bank account.

Supported stablecoins and networks:

• USDC on Arbitrum, Avalanche, Base, Ethereum, Polygon, and Solana
• USDT on Ethereum and Tron
• EURC on Base, Ethereum, and Solana

Supported fiat destinations:

• USD via ACH and Wire
• EUR via SEPA

For full details, see the Offloader Wallets guide and Supported Rails & Currencies.

EURC Now Supported

EURC is now available across SpherePay's on-ramp and off-ramp products on Base, Ethereum, and Solana networks.

For full details, see Supported Rails & Currencies.

Customer API Suite for Business Customers

Full API support for onboarding and verifying business customers, including UBO registration — giving you complete control over the onboarding UX without redirecting customers to an external flow.

New endpoints available:

• Register business representative
• Upload UBO identification documents
• Request face liveness verification for UBO
• Submit UBO for verification

For full details, see the KYB via API guide and Create Customer endpoint.

Customer API Suite for Individual Customers

Full API support for onboarding and verifying individual customers — enabling end-to-end KYC flows inside your own product without redirecting customers to an external page.

New endpoints available:

• Upload required documents
• Send and verify email OTP
• Send and verify phone OTP
• Request face liveness verification

The Create Customer endpoint now accepts the following fields for API-based KYC:

• personalInformation.taxIdentificationNumber
• personalInformation.taxIdentificationNumberType
• personalInformation.taxIdentificationNumberCountry
• personalInformation.taxIdentificationNumberDescription

For full details, see the KYC via API guide. If you want a faster integration path, see KYC via Link.

Introducing the Onramper Accounts API

Onramper Accounts generate dedicated bank accounts that automatically convert incoming fiat deposits into stablecoins and deliver them on-chain — no manual intervention required.

• Generate dedicated bank accounts per customer or application
• Automatically convert USD/EUR deposits into USDC or USDT
• Deliver converted funds directly to any on-chain wallet address

For full details, see the Onramper Accounts guide and Virtual Account API reference.

Starknet Network Support

Starknet is now supported for USDC onRamp and offRamp transfers. Use "network": "starknet" in the source or destination of your transfer request.

{
    "customer": "customer_098xxxxxxxxxxxxxxxxxxxxxxxxxxxfbb",
    "amount": "1.12",
    "source": {
        "id": "wallet_81bxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx9f3",
        "network": "starknet",
        "currency": "usdc"
    },
    "destination": {
        "id": "bankAccount_cabxxxxxxxxxxxxxxxxxxxxcxxxxx42c",
        "network": "achSameDay",
        "currency": "usd"
    }
}

{
    "customer": "customer_098xxxxxxxxxxxxxxxxxxxxxxxxxxxfbb",
    "amount": "2",
    "source": {
        "id": "bankAccount_cabxxxxxxxxxxxxxxxxxxxxcxxxxx42c",
        "network": "wire",
        "currency": "usd"
    },
    "destination": {
        "id": "wallet_81bxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx9f3",
        "network": "starknet",
        "currency": "usdc"
    }
}