Sphere Pay, also known as SpherePay, is a payment infrastructure platform for companies using stablecoins in international settlements. The platform combines fiat on/off-ramps, currency conversion, blockchain transfers, compliance, and APIs, allowing businesses to send and receive funds across different countries without independently integrating multiple banking and cryptocurrency providers. Sphere focuses on B2B payments, fintech companies, marketplaces, payment providers, and other organizations with international money flows. The primary role of blockchain in this model is to accelerate the intermediate settlement layer, while senders and recipients can continue using traditional fiat currencies when required.
Contents:
- Sphere Pay: How the B2B Payment Platform Works
- Stablecoins, On/Off-Ramps, and Cross-Border Settlements
- SpherePay API, Dashboard, and Payment Infrastructure
- Blockchain Networks and Sphere Payment Architecture
- Sphere Pay: Development, Regulation, and Risks
1. Sphere Pay: How the B2B Payment Platform Works
Sphere was founded by Arnold Lee and Luigi Charles in 2022. The company focused on the challenges of international transfers, where a payment may pass through multiple banks, currency conversions, and local providers. For businesses, this structure creates additional integration requirements, the need to manage liquidity across different countries, and dependence on banking hours.
Sphere uses stablecoins as an intermediate settlement layer. A company can deposit fiat currency, after which the funds are converted into a supported stablecoin, transferred via blockchain, and converted back into the required currency on the recipient's side. This structure is known as a stablecoin sandwich: fiat is used at the entry and exit points, while digital dollars are used to transfer value between the two sides.
As a result, users of the payment infrastructure do not necessarily need to manage cryptocurrency wallets themselves or search for local exchanges. Sphere combines payment routing, conversion, and related processes through a single interface. According to current company data, the infrastructure covers more than 160 markets, while many international settlements can be completed in less than 30 minutes. Actual settlement times depend on the specific route, currency, banks, and compliance procedures.
The model is primarily designed for real-world money flows rather than cryptoasset trading. Potential use cases include settlements between importers and exporters, supplier payments, international payroll, payment provider operations, marketplaces, digital wallets, and companies that need to move working capital between legal entities.
2. Stablecoins, On/Off-Ramps, and Cross-Border Settlements
A key advantage of stablecoins for payment infrastructure is the 24/7 availability of blockchain networks. International bank transfers may depend on business days, cut-off times, and chains of correspondent banks. An onchain transaction allows a digital settlement asset to be transferred independently of banking schedules, although fiat deposits and withdrawals still depend on traditional financial infrastructure.
Sphere supports a model in which payments can be funded with either fiat currencies or stablecoins. After receiving a payment instruction, the system selects an available route, executes settlement through the stablecoin layer, and either delivers the digital asset to the recipient or converts it into local currency. After the transaction, the business receives the data required to track and reconcile the payment.
Key components of Sphere's payment model include:
- Cross-border payments — international B2B transfers using a combination of fiat and blockchain rails.
- Fiat on-ramp — conversion of bank funds into supported stablecoins.
- Fiat off-ramp — conversion of stablecoins back into bank-based fiat currencies.
- Stablecoin settlement — use of digital currencies as an intermediate settlement layer.
- FX routing — currency conversion within the payment route.
- Reconciliation — access to statuses, identifiers, and data required for accounting reconciliation.
- KYC/KYB — identification and verification of individuals and legal entities according to the service model.
Offload Wallets are another dedicated tool within the infrastructure. They allow a blockchain address to be linked to a bank account: supported stablecoins received at the address are automatically converted into fiat and transferred to the designated bank account. In Sphere's published configuration, the service supported, among other assets, USDC across several networks and USDT on Ethereum, with withdrawals available in USD and EUR. The range of supported assets, networks, and currencies may change as the product develops.
3. SpherePay API, Dashboard, and Payment Infrastructure
Sphere builds its product as an infrastructure layer that companies can integrate into their own services. The Developer Toolkit provides REST APIs and SDKs for sending, receiving, converting, and tracking payments. This approach is particularly relevant for fintech applications and payment platforms that need to integrate stablecoin rails into an existing user interface.
For companies that do not require deep technical integration, Sphere provides a Dashboard. It allows businesses to manage transfers and payment operations without writing their own code. Embedded Ramp is designed to integrate stablecoin purchases and sales directly into third-party products, while Private Desk focuses on larger OTC transfers and customized payment routing.
| Component | Purpose | Typical Use Case |
|---|---|---|
| Developer Toolkit | APIs and SDKs | Embedding payments into applications |
| Dashboard | Transaction management | Sending and monitoring payments without code |
| Embedded Ramp | Fiat-stablecoin conversion | Embedded on/off-ramp for users |
| Offload Wallets | Automated off-ramp | Stablecoin-to-bank settlement |
| Private Desk | Large OTC transactions | FX and customized routing |
| Compliance Layer | KYC, KYB, and screening | Verification of payment participants |
An important part of the API is the abstraction of differences between individual networks, currencies, and payment partners. For a corporate client, the primary operation remains transferring a specific amount to a particular recipient, while blockchain route selection, conversion, and interaction with payment infrastructure can take place at the Sphere level. This brings stablecoin payments closer to the familiar payment API model.
4. Blockchain Networks and Sphere Payment Architecture
Historically, Sphere has been closely connected to the Solana ecosystem. The network's high throughput and low transaction costs are suitable for payment use cases where fees and settlement speed have a direct economic impact. In 2024, the company also introduced Spherenet — its concept for a payment network based on the Solana Virtual Machine and designed for regulated money flows.
However, the modern SpherePay platform should not be viewed exclusively as a Solana application. The platform is developing as multichain infrastructure. Depending on the product, it works with stablecoins across several blockchain networks. For example, Sphere listed support for USDC on Solana, Ethereum, Base, Arbitrum, Avalanche, and Polygon for Offload Wallets, while in 2025 SpherePay announced Aptos support for stablecoin transfers.
A multichain approach is important for B2B payments because counterparties may not always find it convenient to use the same network. A payment platform needs to consider liquidity availability, fees, support for specific stablecoins, local off-ramp capabilities, and the recipient's infrastructure. Blockchain therefore serves as an internal settlement rail rather than necessarily being the interface used by the final corporate customer.
This architecture also demonstrates the limitations of stablecoin payments. Blockchain can significantly accelerate the digital settlement stage, but it does not eliminate banks, local payment systems, or FX infrastructure. If a recipient wants to receive pesos, euros, or another national currency in a bank account, the final stage of the transaction must still pass through a regulated fiat rail.
5. Sphere Pay: Development, Regulation, and Risks
In December 2024, Sphere raised $5 million in a strategic funding round involving Coinbase Ventures, Kraken Ventures, Anza, Anagram, Pyth Network, and other investors. According to Fortune, the company planned to allocate part of its resources to developing compliance and risk management. By that point, Sphere was already processing international payments through its API and working with regulated participants in local financial infrastructure.
Compliance remains an important part of the B2B model. Sphere's documentation provides for KYC and KYB procedures, including verification of businesses and their ultimate beneficial owners, as well as AML/CFT and sanctions screening depending on the integration structure. In 2026, the company also announced enhanced verification for EEA+ customers in connection with MiCA requirements. In September 2026, Sphere announced regulated operations for the MXN/USD corridor in Mexico, initially through a limited launch.
The platform's risks are not limited to blockchain. International payments depend on banking and on/off-ramp partners, the availability of specific currency corridors, stablecoin regulation, sanctions restrictions, and the quality of compliance processes. Additional risks are associated with digital assets themselves, including stablecoin deviations from their target value, issuer-related issues, network outages, integration errors, and temporary liquidity shortages.
Sphere Pay is therefore better understood as a payment orchestration layer between traditional finance and blockchain rather than as a standalone cryptocurrency payment system. Its model uses stablecoins where they can accelerate international settlement while retaining fiat rails for funding and final payouts. Sphere's further development will depend on the expansion of regulated payment corridors, the reliability of banking partnerships, and its ability to maintain a unified compliance layer across different countries, currencies, and blockchain networks.
