What is OP?
Optimism's native token is an Ethereum Layer 2 scaling solution. It is used to govern the Optimism Collective, powering decisions on network upgrades and Superchain growth.
Optimism payment gateway
Accept OP payments and connect your business with one of the largest Ethereum Layer 2 ecosystems in crypto. As an OP payment provider, 0xProcessing delivers fast, secure, and low-fee processing for merchants worldwide.
How does OP processing work?
The customer selects OP
Your client picks the token at checkout.
Window generated
A secure window appears with a unique address and the exact amount.
The customer sends funds
The buyer transfers tokens from any compatible wallet. Confirmation happens in seconds.
Funds hit your balance
Credited to your merchant account immediately. Hold or convert to stablecoins.
Why accept Optimism payments?
Adding OP to your checkout connects you with a fast-growing Superchain ecosystem that now handles more than half of all Ethereum Layer 2 activity.
Superchain scale
The Optimism Superchain spans 34 OP Chains and processed 3.6 billion transactions in H2 2025, representing 13% of all crypto transactions during that period. That is an active user base, not a passive community.
Near-zero fees
Median fees on OP Mainnet sit around $0.00001, with sub-250ms transaction finality. Even small payments remain economically viable.
Real payment adoption
Ether.fi migrated its crypto card product to OP Mainnet with $220M in TVL, 70,000 active cards, and 300,000 accounts – the largest single TVL event in the network's history. Migration completed in three days with no downtime.
No chargebacks
On-chain transfers are final. No disputes, no fraud reversals.
Institutional footprint
OKX migrated XLayer to the OP Stack, and the broader Superchain reached approximately $5.9 billion in TVL by the end of 2025, representing 278% year-over-year growth
Possible OP operations
Convert to stablecoins
Swap incoming tokens into USDT or USDC through your dashboard to lock in value.
Crypto exchange
Trade incoming tokens for Bitcoin, Ethereum, or other supported assets directly on the platform.
Batch payouts
Distribute funds to partners, affiliates, or team members in bulk – fast settlement. Sub-second finality keeps your cash flow moving without delay.
OP payment method
Several ways to integrate this OP payment method:
API integration
Plug token acceptance into your platform through our API. Full documentation, test mode, and real-time webhooks give your dev team everything they need.
Links
No website needed. Generate a secure link from your dashboard and send it via email, Telegram, or any messaging app.
Payouts
Queue multiple transfers and execute them in a single batch – for affiliate rewards, creator grants, or operational payouts.
What is OP payment?
OP is the native token of Optimism, an Ethereum Layer 2 built on Optimistic Rollups. The network processes transactions off-chain and posts them to Ethereum, reducing fees while relying on Ethereum for security. OP is used in the Optimism Collective for governance. Token holders vote on upgrades, treasury allocations, and decisions related to Superchain development.
Its underlying technology – the OP Stack – is the open-source framework powering Base (by Coinbase), World Chain, Unichain, Zora, and 30+ other Layer 2 chains.
For merchants, accepting it means tapping into a payment rail built specifically for high-throughput, low-cost commerce. Every transaction settles in seconds, costs a fraction of a cent, and benefits from Ethereum's underlying security.
Background on Optimism
OP Mainnet launched in December 2021 by Optimism (then Optimism PBC, rebranded OP Labs in 2022), using Optimistic Rollup technology to scale Ethereum.
OP Mainnet has accumulated over 400 million distinct addresses since launch, with daily increases averaging 100,000+ new addresses.
Superchain Interoperability Layer launches in early 2026, enabling native asset movement across all 34 OP Stack chains.
31.34 million tokens were unlocked on November 29, 2025, representing 1.74% of the circulating supply.
The fourth round of RetroPGF (Retroactive Public Goods Funding) distributed 10 million OP tokens to developers and contributors.
Key features
Payments in Optimism OP
When evaluating Optimism merchant processors, infrastructure matters. As an Optimism payment gateway, 0xProcessing runs its own nodes and monitors the network directly – no third-party aggregators.
High acceptance rate
No geographic restrictions and lightning-fast payment processing.
Reliable security
Modern technical solutions to bypass potential threats and guarantee the reliability of financial transactions.
White label
Customizable white-label payment forms.
Wide selection
Accepts a wide range of payment methods and cryptocurrencies.
Instant withdrawal
Fees are charged only when depositing funds.
Simple API integration
Start receiving payments quickly with a simple API connection.
What our clients say:
“Our store's USDT payment integration was a breeze using 0xProcessing. The assistance was top-notch, and everything went off without a hitch. Our confidence in the safety of our financial dealings has grown.”
Olga M.
E-commerce manager
What our clients say:
“Thanks to our partnership with 0xProcessing, we can now provide our global consumers with rapid, fee-free Ethereum transactions.”
Thomas J.
Operations Manager
What our clients say:
“The USDC solution from 0xProcessing has drastically cut down on our transaction expenses while also streamlining our payment process. Strongly suggested for any company considering accepting cryptocurrency payments.”
Sarah L.
CFO
What our clients say:
“It was a great decision to use 0xProcessing for payment processing in GameFi projects. Both the API's simplicity and the speed with which transactions are processed are noteworthy. Our productivity has skyrocketed thanks to this.”
Alex K.
Game developer
How to accept OP payments?
E-commerce and other enterprises may start 0xProcessing with these steps:
1
Sign Up
2
Confirm the information
3
Get onboarding
4
Add the OP payment button to your website.
85+ currencies
Accept payments in other cryptocurrencies
Why accept it?
Optimism processes over half of all Layer 2 activity on Ethereum, with 34 connected chains and 3.6 billion transactions in H2 2025. Its users transact on-chain daily and are comfortable paying in crypto.
How fast are transactions?
OP Mainnet delivers sub-250ms finality with median fees around $0.00001. Funds appear on your merchant balance almost immediately.
What is the Superchain?
A network of 34 Layer 2 chains built on the OP Stack, including Base, World Chain, Unichain, and Ink. Together, they hold $6.8 billion in TVL and share security through the Optimism framework.
Can I convert to stablecoins?
Yes. Use the exchange feature in your dashboard to swap incoming tokens into USDT or USDC.
What other cryptocurrencies can I accept?
0xProcessing supports 85+ cryptocurrencies across 18 blockchains – BTC, ETH, USDT, SOL, BNB, and many more.
Experience secure payments with an acceptance rate of up to 99.9%
Fill in all fields and we’ll get in touch soon
