List of Payments projects on Optimism (2026)

Tether

Payments

Driving the Future of Money

Tether helps users transact with digital versions of traditional currencies through blockchain technology.

Make money movement your competitive edge

Circle is a global financial technology firm that enables businesses of all sizes to harness the power of digital currencies and public blockchains.

Onramper

Payments

The leading fiat to crypto Onramp Aggregator

Onramper is a fiat-to-crypto onramp aggregator that gives Web3 businesses a single API to multiple payment providers. It routes transactions to the optimal onramp based on geography, payment method, and conversion rates.

Powering businesses globally with stablecoin payment infrastructure

TransFi is a payments infrastructure company that enables cross-border payments using stablecoin rails. It serves businesses and individuals moving money across multiple markets worldwide.

Kotani Pay

Payments

Your reliable cash in and cash out partner

Kotani Pay is a payments company providing fiat to stablecoin on-ramp and off-ramp services in Africa. It lets blockchain protocols, dApps, and fintechs integrate local payment channels via API and USSD.

Swapped

Payments

Buying crypto made simple

Swapped is a cryptocurrency on-ramp and off-ramp service. It lets individuals and businesses buy and sell digital assets using local payment methods across many countries.

Crypto payment gateway for your business

0xProcessing is a cryptocurrency payment gateway for businesses. It enables merchants to accept a wide range of digital currencies across multiple blockchain networks with automated volatility protection.

Powering the next generation of global finance

Bakkt is a regulated financial technology company providing digital asset trading, stablecoin settlement, and programmable payments infrastructure. It serves financial institutions, fintechs, and payments providers seeking compliant access to digital markets.

Visa, a trusted leader in digital payments.

Visa is a payments company that operates a global network connecting consumers, merchants, and financial institutions. It processes card-based transactions and has expanded into stablecoin settlement and tokenization services.

Buy and sell digital assets, your crypto, your way

Topper is a fiat-to-crypto on-ramp and off-ramp payment widget for Web3 apps and wallets. It lets users buy and sell digital assets to and from self-custodial wallets using cards and other common payment methods.

#1 Finance Super App

GCash is a mobile wallet platform offering payments, savings, credit, and investment services in the Philippines. It helps unbanked and underbanked Filipinos access financial services through their smartphones.

Bridging the fiat and crypto global economies

Alchemy Pay is a payment solutions provider that bridges fiat and crypto economies. It enables consumers, merchants, developers, and institutions to convert between fiat currencies and digital assets across a wide range of markets.

Multisender.app

Payments

Send tokens to multiple addresses

Multisender.app is a token distribution platform for blockchain networks. It helps users and teams send tokens or NFTs to multiple recipients through batched transactions and an API.

Your secure, compliant crypto payment gateway

CoinGate is a cryptocurrency payment processor. It helps businesses accept digital asset payments and lets individuals buy or sell crypto with cards or bank transfers.

USDt payments infrastructure for Asia and MENA.

Stables is a stablecoin payments infrastructure provider. It offers a single API for businesses to collect, convert, and move USDt across corridors in Asia and MENA.

Accept the future of payments

Coinify is a cryptocurrency payment processor and trading platform for businesses and individuals. It provides payment acceptance, corporate trading, and OTC brokerage services with settlement in local currency or crypto.

Making Web3 Applications Accessible

Transak is a fiat-to-crypto payments infrastructure provider. It helps developers integrate on-ramp and off-ramp solutions so users can buy and sell crypto directly within web3 applications.

reply.cash

Payments

Use stablecoins to pay with local rails

reply.cash is a non-custodial payments project that lets users send stablecoins to mobile money and bank accounts. It serves recipients across multiple countries in Africa and Latin America who do not need a crypto wallet to receive funds.

Easy Access to Digital Assets

Meld is a fintech infrastructure platform that aggregates crypto on/off ramps, payment processors, and bank linking providers through a single API.

An entirely new payments platform, built with stablecoins, to simplify global money movement

Bridge is a stablecoin infrastructure provider offering APIs for global money movement. It helps businesses accept, issue, store, and spend stablecoins for cross border payments and financial services.

DePay pioneers Web3 payments with the power of DeFi

DePay is a cryptocurrency payments company. It enables merchants and developers to accept crypto payments across multiple blockchains with automatic token conversion powered by decentralized finance protocols.

Best place to buy over 1000 crypto

Guardarian is a fiat-to-crypto exchange service provider. It lets users buy, sell, and swap cryptocurrencies using bank transfers, cards, and other payment methods without requiring an account.

Seamless on and off ramp in the Web3 world

OnMeta is a fiat-to-crypto on/off ramp infrastructure provider. It enables Web3 platforms to offer local payment methods for buying and selling digital assets across India and Southeast Asia.

Bring your crypto to life

Spritz Finance is a crypto payments company that lets users pay bills, convert crypto to fiat, and spend digital assets via a card. It serves crypto holders who want to use their holdings for everyday spending without a bank.

Peer

Payments

No barriers, no middlemen, just peer

Peer is a peer-to-peer crypto marketplace and payment protocol, formerly known as ZKP2P. It lets users trade fiat and crypto directly through everyday payment apps without a custodial middleman.

A whole world of crypto, in one simple account.

MoonPay is a fintech company that provides payments infrastructure for crypto. It lets businesses and individuals buy, sell, send, and trade digital assets using everyday payment methods.

Full Set of Crypto Products and Services to Build Your Own Web3 Financial System

CPAY is a software company providing crypto payment infrastructure, including payment gateways, non-custodial wallets, and white-label solutions.

BlockBee

Payments

Effortless crypto payments with instant payouts.

BlockBee is a cryptocurrency payment processing platform for businesses. It provides non-custodial crypto payment acceptance and mass payouts with low fees for merchants worldwide.

Swap crypto across chains in minutes

CryptoRoute is a self-custodial crypto swap protocol that lets users exchange assets across blockchain networks. It offers route-specific quote pages with live pricing, fee breakdowns, and real-time status tracking.

The infrastructure for every payment, everywhere

Nuvei is a payment technology company that provides global payment processing, card issuing, and financial services. It serves merchants and platforms across multiple markets, currencies, and payment methods, including crypto and digital assets.

Accept payments in cryptocurrency online on your website

TryBit is a cryptocurrency payment gateway company for online businesses. It processes payments in a range of digital currencies for merchants across e-commerce, digital products, and online services worldwide.

Money beyond borders

Due is a cross-border payments company that provides stablecoin-based payment infrastructure. It helps fintechs, exchanges, and businesses move money globally through multi-currency accounts and instant settlement.

The easiest way to get paid by international clients

DashX is a cross-border payments platform for Indian freelancers and businesses. It helps users receive international payments through virtual multi-currency accounts, automated compliance documentation, and settlement to local bank accounts.

Your global card issuing and banking partner

Interlace is a payments and banking infrastructure company for Web3 and crypto-facing businesses. It offers card issuance, crypto-to-fiat conversion, and multi-currency accounts for cross-border commerce.

Seamless crypto and fiat conversions

Banxa is a payments infrastructure provider for digital asset platforms, offering fiat-to-crypto on-ramp and off-ramp services. It serves exchanges, wallets, and fintech platforms seeking to embed crypto payments globally.

Money at the speed of light

Swipelux is a payment infrastructure company providing a unified API for fiat-to-crypto and crypto-to-fiat transactions. It offers on-ramp routing, custody, swaps, and payouts for Web3 and fintech businesses across multiple countries.

Simple blockchain payments, for life and business

Zypto is a crypto payments company offering a self-custodial wallet, cards, and merchant payment services. It helps individuals and businesses buy, hold, and spend digital assets in everyday transactions.

FX infrastructure for modern payments

LINK is a foreign exchange infrastructure provider for digital payments. It offers APIs and a dashboard that let banks, neobanks, PSPs, fintechs, and multinational enterprises move funds and stablecoins across currency pairs and payment rails.

Your global dollar account

Meru is a payments company serving freelancers and remote workers in Latin America. It offers self-custodial USD wallets, ACH and SEPA transfers, and Visa payment cards.

Take back control of your crypto.

BitPay is a cryptocurrency payment processor and self-custody wallet provider. It helps individuals buy, store, swap, and spend crypto, and helps businesses accept crypto payments.

A crypto and stablecoin payment infrastructure for merchants, PSPs, and banks.

Lyzi is a crypto and stablecoin payment infrastructure provider. It lets merchants, e-commerce sites, PSPs, and banks accept crypto payments through a single API with fiat settlement.

Cryptocurrency payment gateway

B2BinPay is a cryptocurrency payment gateway and infrastructure provider for businesses. It enables companies to accept, send, store, and convert digital assets through a unified platform with API integration.

The Super App for Money in Latin America

El Dorado is a financial technology company operating a money SuperApp for Latin America. It lets users exchange stablecoins peer to peer, hold a US dollar account, access a card, and make local payments.

Buy and sell crypto. It’s quick, simple, and secure.

Ramp Network is a fiat to crypto payments company. It provides on-ramp, off-ramp, and swap services that let businesses and individuals convert between currencies and digital assets.

EUROe is a modern European stablecoin - a digital version of euros.

A regulated European stablecoin providing near-instant global payments and euro-based blockchain solutions.

Next generation fiat on-ramp

Unlimit Crypto is a fiat-to-crypto payment infrastructure provider. It helps businesses accept fiat payments for crypto through on-ramp and off-ramp solutions for NFT marketplaces, games, and other platforms.

Get the crypto prepaid card

Laso Finance is a crypto prepaid card provider offering no-KYC, instantly issued cards. It lets users convert stablecoins into spendable balances for global purchases.

Enterprise stablecoin payments infrastructure

Fipto is a stablecoin payments infrastructure provider for businesses. It enables companies to send, receive, and convert funds globally in real time across fiat and stablecoin rails.

Accept crypto payments for your business

Auras Pay is a non-custodial crypto payment infrastructure provider for businesses. It offers merchant tools for direct wallet-to-wallet settlement alongside a separate self-custody wallet for individual users.

Your Money, Minus the Worry

Onboard is a financial services company offering USD accounts, virtual cards, a self-custody crypto wallet, and cross-border payments. It serves individuals and businesses moving money and digital assets across borders.