1. The “Walled City” of Traditional Payment Systems: The Contradiction Between Massive Market and Outdated Infrastructure
The global payments industry is a market of enormous scale and rapid growth, yet its underlying infrastructure remains severely dependent on outdated technologies that are half a century old. While modern fintech companies like Stripe, Mastercard, and Visa have greatly improved the end-user experience, they still operate on these inefficient and costly traditional rails. This profound contradiction between technological maturity and market development creates a historic opportunity and powerful momentum for the rise of Web3 payments.
Market Size and Growth Trends
Despite its aging underlying architecture, the payments industry continues to demonstrate robust growth, becoming one of the world’s largest industries.
- As of 2024, global payments industry revenue is estimated at 4.7 trillion by 2029, representing a compound annual growth rate (CAGR) of 10.8%.
- In 2023, the B2B cross-border payments market reached 53 trillion by 2030.
Core Pain Points of Traditional Payment Systems
Behind the massive market size lie structural deficiencies inherent to traditional payment systems. These flaws not only limit efficiency but also increase the cost burden on global businesses and individual users.
- High costs According to World Bank data, the average fee for global remittances is 6.25% of the transaction amount. This cost primarily stems from complex intermediaries and inefficient settlement processes, effectively constituting a hidden tax on global commerce and households.
- Low efficiency Time costs are equally high. A cross-border remittance typically takes up to five business days for final settlement. Such delays can undermine cash flow in fast-paced global business environments and complicate liquidity planning.
- Bloated structure In a typical open-loop payment system (such as Visa/Mastercard), a single transaction may involve up to six intermediaries, including POS services, payment aggregators, acquirers, card network operators, card issuers, and digital wallets. This multi-layered structure essentially constitutes a “rent-seeking intermediary cartel,” with each step extracting fees from the transaction and increasing final costs.
- Insufficient coverage The reach of traditional financial systems is limited, with as many as 1.4 billion unbanked adults globally. For this population, the door to traditional payment systems remains essentially closed, leaving them unable to enjoy the conveniences modern digital payments offer.
Payment System Models: Open Loop vs. Closed Loop
To better understand the structure of traditional payments, we can divide it into two primary models: open loop and closed loop systems.
| Feature | Open Loop Payment Systems | Closed Loop Payment Systems |
|---|---|---|
| Core Characteristics | Networks are open, allowing multiple card issuers and acquirers to connect, enabling broad interoperability. | Controlled by a single entity that manages the entire payment flow, from card issuance to acquisition. |
| Key Participants | Visa, Mastercard | PayPal, Starbucks App |
| Advantages | Strong global universality; consumers holding a single card can transact at merchants worldwide. | Can bypass high fees charged by card networks and deepen customer stickiness through loyalty programs. |
| Limitations | Complex structure with numerous intermediaries, leading to high costs and slow settlement. | Highly fragmented systems operating independently; still require reliance on traditional banking systems for fund inflows and outflows. |
Despite the scale of traditional payment systems, their inherent high costs, low efficiency, and complexity provide fertile ground for disruptive innovation, and blockchain technology offers a completely new path forward.
2. The Rise of Web3 Payments: From Bitcoin’s Vision to Stablecoin-Driven Value Internet
The intellectual foundation of Web3 payments traces back to the revolutionary vision of a “peer-to-peer electronic cash system” articulated in Bitcoin’s 2009 whitepaper. This vision aimed to create a decentralized currency that could facilitate direct transactions without financial intermediaries. However, due to severe price volatility, early cryptocurrencies struggled to serve as ideal payment media. Stablecoins solved this fundamental problem by pegging to fiat currencies, combining value stability with blockchain technology’s advantages, ultimately evolving into a novel payment paradigm designed to solve traditional finance’s pain points.
Fundamental Advantages of Web3 Payments
Web3 payments based on blockchain and stablecoins fundamentally restructure the underlying logic of value transfer, exhibiting core advantages unmatched by traditional systems.
- Near-instant settlement In traditional payment systems, payment authorization and fund settlement are separate. When consumers swipe a card, the transaction appears instant, but actual settlement of funds from the card issuer to the acquirer (merchant account)—typically T+N—usually requires a day or longer. By contrast, blockchain technology enables synchronized authorization and settlement, with transactions achieving final confirmation within minutes or even seconds. A notable case is the Visa and Crypto.com pilot project, which leveraged USDC stablecoins on the Ethereum blockchain to process cross-border transactions, significantly reducing the time and complexity required by traditional international wire transfers.
- Substantially lower costs Web3 payments dramatically reduce transaction costs by eliminating layers of intermediaries. This cost advantage is particularly pronounced in cross-border payment scenarios. The global average cost to send a 12.50), while sending equivalent stablecoins on high-performance blockchains like Solana costs only approximately $0.00025. This cost differential spans five orders of magnitude, fundamentally transforming the unit economics of microtransactions. Furthermore, applications like Binance Pay can even enable low-fee or zero-fee peer-to-peer transfers and merchant payments.
- Transparent, trustless, and globally accessible Blockchain functions as a “unified, global, transparent” distributed ledger where every transaction is publicly verifiable and immutable. This fundamentally eliminates dependence on trust in intermediary institutions like correspondent banks, establishing a trust machine built on technological consensus. More importantly, it dramatically lowers the barrier to financial services. The 1.4 billion unbanked population globally need only a smartphone and internet connection to access this new global payment network and achieve financial inclusion.
Stablecoins: The Foundation of the Web3 Payment Ecosystem
Stablecoins, through their 1:1 peg to fiat currencies like the US dollar, successfully resolve the volatility problem of cryptocurrencies, emerging as ideal transaction media and units of account. They retain the stability of traditional currencies while fully leveraging blockchain’s global nature, efficiency, and programmability. The explosive growth of stablecoins has directly driven the scalable application of Web3 payments.
- Transaction volume: In 2023, stablecoins processed total transaction volume exceeding $10.8 trillion.
- Market capitalization: As of now, the total market cap of major stablecoins (primarily USDT and USDC) has exceeded $160 billion.
Leveraging core advantages of instantaneity, low cost, and global accessibility, and using stablecoins as the primary medium, Web3 payments are constructing an efficient value flow network, with specific ecosystem architecture deserving deeper analysis.
3. Web3 Payment Ecosystem Analysis: Technology Stack and Core Models
A clearly structured internal architecture has already formed within the current Web3 payment ecosystem. By decomposing its technology stack and core business models, we can clearly see how this emerging field operates and how it connects the traditional fiat world to the on-chain digital world.
Web3 Payment Technology Stack
The implementation of Web3 payments relies on a four-layer architectural technology stack, with each layer playing an indispensable role.
- Settlement Layer This is the underlying blockchain infrastructure that processes transactions. It essentially is a platform that “sells block space,” providing final settlement and record-keeping services for payment transactions. Key participants include Layer-1 public blockchains like Ethereum and Solana, as well as Layer-2 scaling solutions such as Arbitrum and Optimism.
- Asset Issuer Layer This layer comprises organizations that create, manage, and redeem stablecoins, such as Circle (issuing USDC) and Tether (issuing USDT). They typically operate using balance sheet-driven models similar to banks, generating yields by investing customer deposits in assets like US Treasury securities and issuing stablecoins as liabilities.
- On/Off-Ramp Layer This is the critical technological bridge connecting blockchain stablecoins to traditional fiat bank accounts. It handles the conversion between fiat and stablecoins, enabling users to “on-ramp” (move funds onto the chain) or “off-ramp” (move funds off the chain). Notably, this layer is typically the most expensive part of the current payment stack. For example, services like Moonpay may charge fees as high as 1.5%.
- Interface/Application Layer This is the client-facing software for end users, such as payment applications like Binance Pay. They provide user interfaces, abstract away underlying technical complexity, and utilize other stack components to facilitate and simplify payment transactions.
Core Business Model: “Stablecoin Sandwich”
Currently, the most mainstream operational model for Web3 cross-border payments is a core business model dubbed the “Stablecoin Sandwich” by digital asset infrastructure provider Fireblocks. This model ingeniously leverages blockchain’s global settlement capabilities, simplifying complex cross-border processes into two local transfers and one on-chain transfer.
- Step One: On-Ramp On the sending end, users exchange local fiat currency (such as Mexican pesos) for stablecoins (such as USDC) through currency exchange services.
- Step Two: On-Chain Transfer Stablecoins are transferred through a blockchain network (such as Solana), nearly instantaneously and at minimal cost, from the sender’s address to the recipient’s address.
- Step Three: Off-Ramp On the receiving end, the recipient exchanges the received stablecoins for the target fiat currency (such as euros) through local currency exchange services.
By decomposing a complex international wire transfer into two efficient local fiat transfers and one ultra-low-cost on-chain stablecoin transfer, this model successfully circumvents the multiple intermediaries, high fees, and long delays inherent to the traditional correspondent banking system.
More notably, as user confidence in stablecoins increases, this model is evolving toward a new form called the “Open Stablecoin Sandwich.” In this mode, one end of the transaction (typically the receiving end) chooses not to convert stablecoins back to fiat but instead holds and uses them directly. This shift is profoundly significant, signaling that stablecoins are evolving from mere payment conduit tools into reliable stores of value in specific markets, reflecting maturing market signals in the Web3 payment ecosystem.
Although the Web3 payment ecosystem architecture is becoming increasingly clear, it still faces multiple challenges including technical performance, user experience, and regulatory environment on its path toward large-scale adoption.
4. Obstacles Ahead: Core Challenges Facing Web3 Payments’ Large-Scale Adoption
While Web3 payments demonstrate enormous potential to reshape global finance, the road to mainstream adoption is not without obstacles. Before becoming a formidable competitor to systems like Visa or SWIFT, it must overcome several critical challenges in performance, user experience, and regulatory compliance.
Scalability and Performance Bottlenecks
A global payment network must be capable of processing massive transaction volumes continuously around the clock. Currently, even the highest-performing blockchains have transaction processing capacity (TPS, transactions per second) that falls significantly short compared to traditional payment giants.
| Platform | Recorded Highest Daily Average TPS | Visa Daily Average TPS (2023) |
|---|---|---|
| Visa | Approximately 65,000 (peak processing capacity) | Approximately 8,300 |
| Solana | Slightly above 1,000 | - |
| Sui | Over 850 | - |
| BNB Chain | 378.3 | - |
Beyond TPS gaps, network stability is also a critical consideration for institutional adoption. For example, despite Solana’s superior performance, it has experienced several major network outages since 2020, raising institutional concerns about its ability to operate reliably for critical functions like payments.
However, this performance gap has not deterred exploration by industry giants. A deeper industry insight is that despite performance bottlenecks and network stability issues, Web3 payments’ enormous advantages in efficiency and cost have already attracted traditional payment giants like Visa and PayPal to actively conduct pilots on public blockchains like Solana. This suggests that for institutional adoption, raw TPS metrics are not the sole determining factor; comprehensive benefits improvements in actual business processes hold equally strong appeal.
User Experience Complexity
Compared to the seamless, abstracted payment experiences provided by Square or Stripe, current on-chain interactions remain too complex and unfamiliar for ordinary users, creating a high usage barrier.
- Private key management: Users must personally manage their private keys; loss or theft results in permanent asset loss. This represents a significant psychological burden and security risk for non-technical users.
- Gas fee payments: Any on-chain transaction requires paying network fees (gas fees). This concept is difficult for non-crypto users to understand, adding transaction complexity.
- Lack of unified frontend: The Web3 ecosystem lacks the unified, comprehensive user interfaces typical of traditional fintech, resulting in relatively fragmented and inconvenient user interactions.
Regulatory Environment Uncertainty
Global regulatory policies toward cryptocurrencies and stablecoins remain in constant evolution, lacking unified and clear frameworks. Regulatory differences across jurisdictions create substantial compliance complexity for payment companies seeking global operations. Nevertheless, regulatory frameworks are gradually clarifying, as exemplified by the European Union’s Markets in Crypto-Assets Regulation (MiCA) and the United States’ advancing GENIUS Act, both aiming to provide the industry with clearer guidance and legal certainty.
Facing the triple challenges of performance, experience, and regulation, the industry is actively exploring future solutions by constructing innovative payment networks and integrating decentralized finance (DeFi) models.
5. Future Vision: Payment Network Innovation and the Rise of PayFi
Looking ahead, Web3 payments are transcending simple peer-to-peer transfers, evolving toward more ambitious and complex directions. Industry leaders are dedicated to building open payment networks and deeply integrating decentralized finance (DeFi), pioneering a new chapter known as “PayFi” (Payments + DeFi). This represents not merely an optimization of existing payment systems, but a fundamental restructuring of global payments and even the broader financial services landscape.
Emerging Web3 Payment Networks: Circle Payments Network as an Example
Taking Circle Payments Network (CPN), launched by Circle, the issuer of USDC stablecoin, as an example, this emerging model aims to construct an open, interoperable global payment infrastructure.
- Positioning: CPN is positioned as a “new protocol layer” and “payment coordination layer” built on stablecoins. Its objective is to become an open network akin to VISA, providing a modern alternative to traditional payment channels like SWIFT, VISA, and Mastercard.
- Functionality: CPN does not directly transfer funds. Instead, it functions as a marketplace and coordination protocol for financial institutions, connecting compliant financial institutions globally and coordinating efficient flows of fiat and stablecoins worldwide.
- Vision: As stated in its whitepaper, CPN’s goal is to lead a transformational shift “from mailing letters to email,” bringing global value transmission into the true internet age.
The Rise of PayFi: Fusing Payments and Finance, Activating the Time Value of Money
The core innovative concept of PayFi (Payments + DeFi) is to deeply fuse the logistics attributes of payments with DeFi’s composability, creating entirely new paradigms around the “time value of money,” the cornerstone of finance. Its essence is enabling capital to remain productive while awaiting payment or transfer, transforming payments from static value transfer into a dynamic process capable of embedding complex financial logic.
Typical PayFi use cases include:
- Interest-bearing stablecoin payments: Using Ondo Finance’s USDY as an example, stablecoins held by users can themselves earn yields from low-risk assets like US Treasury securities. This means user funds continue generating value while awaiting payment or transfer, achieving seamless fusion of payments and investment.
- Payment-backed RWA financing (Real World Assets): Projects like Huma Finance leverage DeFi liquidity pools to provide liquidity for real-world payment scenarios (such as supply chain finance and invoice factoring). This enables businesses to tokenize future receivables and obtain immediate financing in DeFi markets.
- DeFi yield payments: Using Ether.fi Cash as an example, users can directly use yields generated from assets staked in DeFi protocols (such as Ethereum) for daily consumption payments. This amounts to “paying with tomorrow’s money,” dramatically improving asset capital efficiency.
- On-chain credit systems: Projects like PolyFlow are exploring building decentralized credit systems by integrating on-chain transaction records, identity verification, and income data. This will provide the foundation for more complex financial services, such as unsecured lending and “Buy Now, Pay Later.”
Therefore, Web3 payments are not incremental improvements to the traditional system, but a fundamental restructuring of global value exchange. They are transforming global payment paradigms from closed, rent-seeking isolated networks into an open, programmable, and universally accessible financial internet, heralding the imminent arrival of a new financial landscape truly belonging to the digital age.