Payments

Automated market makers (AMMs) have become the predominant trading mechanism in the DeFi ecosystem, allowing users to swap various crypto assets via liquidity pools. However, as trading scenarios shift from highly volatile cryptocurrencies to stablecoin foreign exchange (FX) markets, traditional AMMs may face challenges such as price deviations and reduced liquidity efficiency. This article compares the AMM and the Fixed Price Market Maker (FPMM) model employed by Mento, examining their differences in price discovery, liquidity management, and cross-border payment use cases, and illustrates why Mento builds multi-currency stablecoin markets using FPMM.

USD stablecoins continue to dominate the global stablecoin market. However, as cross-border payments, corporate treasury management, and financial digitalization advance worldwide, demand for non-USD stablecoins is steadily increasing. Without robust liquidity and on-chain foreign exchange (On-chain FX) infrastructure, however, efficient currency exchange and payments across different currencies remain difficult to achieve.

With the stablecoin market moving away from exclusive US dollar dominance toward greater multi-currency adoption, Onchain FX infrastructure is becoming increasingly critical. Mento Protocol has recently deployed its decentralized FX protocol on Polygon, introducing a USDm/EURm liquidity pool and the euro reserve asset EURØP. This enhances the onchain trading and settlement capabilities of stablecoins beyond the US dollar.

As cryptocurrency applications advance, wallets have transitioned from merely storing assets to serving as comprehensive digital financial gateways that integrate trading, yield management, and payment services. Taking BloFin Wallet as a case study, this article examines the operational model of an all-in-one cryptocurrency wallet and explores how trading, Earn, and Visa Card collectively enable a seamless capital cycle.

Explore BloFin Wallet’s role in the Web3 financial ecosystem by examining how an all-in-one crypto wallet brings together trading, Earn yields, and payment services, delivering a complete digital asset application experience.

As the cryptocurrency market continues its transition from asset investment toward daily financial use, users now expect wallets to offer more than just token storage. BloFin Wallet has recently launched perpetual contract trading and Visa payment card services, striving to create a comprehensive digital finance tool that seamlessly integrates trading, asset management, yield generation, and payment functionalities.

Mainstream crypto cards—often called U cards—connect stablecoins or other digital assets to payment networks such as Visa or Mastercard so balances can be spent online, in stores, or, where supported, withdrawn at ATMs. Products differ by form factor: virtual cards ship as digital credentials for fast online use; physical cards support POS and cash access; prepaid models load a spendable balance before each purchase rather than drawing from a bank deposit account. Issuers vary in top-up paths, FX conversion, regional coverage, KYC tiers, and fee design. Choosing a card means matching its type and issuer rules to the intended payment path—not assuming every product supports the same withdrawal or cross-border capabilities.

A crypto card is a debit- or credit-style payment card linked to a cryptocurrency wallet or exchange balance. At checkout, the issuer typically converts supported crypto into fiat and settles the purchase over Visa or Mastercard. Products differ mainly by fees, rewards, KYC, regional availability, and whether they offer virtual and physical cards.

To trade AEON on Gate, users need a Gate account and sufficient USDT, then enter the AEON/USDT spot market and place either a market order or a limit order. Once the order is filled, the purchased AEON appears in the account balance and can be held, sold, or transferred on-chain when deposits and withdrawals are available on a supported network.

The AEON tokenomics model is designed around cross-chain payments and AI agent commerce. It connects the AEON token to AEON Pay, cross-chain settlement, and the node network through payment gas, validator staking, protocol governance, fee-funded buybacks, and liquidity incentives. AEON has a fixed total supply of 1,000,000,000 tokens allocated across ecosystem development, the team, the foundation, early investors, marketing, liquidity, and airdrops.

AEON is a crypto payment infrastructure designed for AI agents and real-world commerce. Through its node network, cross-chain settlement protocol, and AEON Pay, it connects users, autonomous agents, wallets, and merchants to support scan-to-pay transactions, multichain payments, agent-to-agent settlements, and AI-driven real-world purchases.

Crypto payment cards are designed to connect digital assets with everyday spending. Instead of withdrawing crypto to a bank account before making a purchase, eligible users can pay online, shop at physical stores, subscribe to digital services, or withdraw cash from supported ATMs through a virtual or physical card.

U Cards suit cross-border payments mainly because they connect stablecoins or other digital assets to global card networks, covering overseas spending, online subscriptions, and travel payments. Compared with traditional bank wires, U Cards lean toward high-frequency, smaller consumer payments and near-instant checkout; bank wires fit clearer payee accounts and larger account-to-account transfers.

A U Card is neither inherently unsafe nor inherently high-risk. Safety depends mainly on issuer compliance capability, payment-network support, account risk controls, and the user’s funding and spending path. To assess whether a U Card is reliable, focus on custody logic, KYC requirements, regional limits, risk-trigger conditions, and how personal and transaction data are handled.

U card costs usually combine top-up fees, FX conversion fees, withdrawal fees, payment-network charges, and exchange-rate spread. Whether a U card is inexpensive depends on top-up path, withdrawal frequency, cross-border payment patterns, and effective FX loss—not on any one headline rate alone.