Settle and move money onchain, with security built for global payments scale
Stablecoin settlement is opening a faster, always-on rail for payments. OpenZeppelin secures the contracts, infrastructure, and operations beneath your onchain settlement and issuance so you can move faster with confidence.
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and infrastructure providers
The hard part of onchain payments is not moving the money. It is keeping it secure at scale.
$300B+ in stablecoin circulating supply
$7B+ annualized stablecoin settlement run rate
$3.4B lost to onchain exploits in 2025
Sources: rwa.xyz (2026); Visa, Visa Accelerates Stablecoin Momentum (April 2026); Chainalysis 2026 Crypto Crime Report.
For payment networks, settling onchain is fast becoming core infrastructure: a way to move money around the clock, across borders, and between partners without waiting on banking hours. The opportunity is real, and so is the shift in what you have to secure. Money settled onchain still has to clear, reconcile, and satisfy every compliance and sanctions obligation, but now the stablecoin standing in for the currency, the settlement logic executing in code, and the many chains the money travels across all sit inside your risk perimeter. Capturing the opportunity means holding that infrastructure to the standard your customers already expect of you.
Get it right, and moving money onchain becomes a lasting advantage.
The stablecoin standard, the settlement and reconciliation model, upgrade and admin-key design, and how the onchain record reconciles with your ledger and partners are all set before the first payment moves. They decide whether the system is defensible, and they are hardest to change once money is flowing through it.
Standing up settlement, issuance, and reconciliation logic in-house is slow and error-prone, and reaching production on patterns that have not been proven puts both your launch timeline and customer funds at risk. Payment networks can afford to compromise on neither.
Exposure does not stop at the settlement contract. It extends to the oracles that price and trigger flows, the bridges that move money between chains, the keys that authorize issuance and settlement, and the operational systems around the contract. Reviewing the contract alone leaves most of the surface uncovered.
A payment system is a long-lived product, and the chains, bridges, and partners it depends on keep changing after launch. The assurance you had at go-live says little about your exposure once money is moving at scale across many networks.
Security for every way you move money onchain
From settlement to the chains your payments travel across and the partners that depend on them, here is the risk you take on onchain and how OpenZeppelin removes it.
Onchain Settlement
Settle issuer, acquirer, and merchant obligations onchain, around the clock
We secure the settlement and reconciliation logic behind always-on stablecoin settlement: creation and redemption controls, supply integrity, and the accounting that has to match your ledger and your partners exactly. 9 of the top 10 stablecoins by market cap are built on OpenZeppelin Contracts, the same standard we bring to your settlement layer.
Stablecoin Issuance & Lifecycle
Issue, redeem, and control a regulated stablecoin in code
For an issuer, the smart contract is the product, and access control is the difference between a controlled supply and an uncontrolled one. We review the issuance and redemption, reserve-control, pause, freeze, and sanctions logic at the token level, so the rules governing your stablecoin hold on every chain it reaches, in line with frameworks like the GENIUS Act, MiCA, and DORA.
Cross-Border Payments & Payouts
Move money across borders and into wallets without multi-day delays
Stablecoins let you settle remittances, disbursements, and wallet payouts in minutes rather than days. The constraint is that onchain payouts are irreversible and compliance screening has to hold at every point where traditional systems meet the blockchain. We assess the payout, routing, and screening integrations and the operational controls behind them, so reach and speed never come at the cost of a misdirected or non-compliant transfer.
Programmable & Agentic Payments
Make payments conditional, automated, and ready for agent-driven commerce
Programmable money lets you encode settlement terms, escrow, and conditional release directly into the payment flow, and prepare for AI-agent-initiated payments. Authorization and execution logic becomes security-critical the moment money depends on it. We threat-model and review the conditional-settlement, escrow, and authorization logic, so automation expands what your network can do without expanding what an attacker can.
Multichain Settlement Reach
Settle across every chain without fragmenting your control
Settlement now spans many blockchains, and each new chain, bridge, and partner widens the surface you have to defend. We assess the cross-chain settlement and messaging, the bridge dependencies, and the institutional and self-custody integrations behind your reach, so balances and total supply stay reconciled no matter how many networks you settle across.
Across all of the above
Counterparty & Onchain Due Diligence
Decide what to rely on, with regulator-ready evidence behind every call
Before your settlement depends on a chain, bridge, oracle, stablecoin, or custodian, our Technical Risk Assessment gives your vendor-risk and compliance teams analysis built to withstand scrutiny under the GENIUS Act, MiCA, DORA, and equivalent frameworks, and to support license applications and internal risk reviews. Once you are live, custom monitoring keeps that picture current as the dependencies change.
Security that moves with your payment program, from first design to live operations
Settling onchain is not a one-time security review. Architecture, issuance, settlement, and operations each carry their own risk, and that risk keeps shifting as you reach new chains, partners, and payment types. OpenZeppelin works across all four stages as a single partner, led by world-class researchers and scaled by OpenZeppelin AI, and calibrated to your network's scale, volume, and regulatory exposure.
Architect
Validate the design before
code is written
Architecture Review
Threat Modeling
Standards & Regulatory Review
Governance Design
Cryptographic Design Review
Applied Research
Build
Reach production with secure foundations
Blockchain Library Development
Custom Platform & Solution Development
Reference Implementations
Standards Development
Blockchain Library Development
Custom Platform & Solution Development
Reference Implementations
Standards Development
Secure
Catch vulnerabilities across code, infrastructure, and operations
Smart Contract Security Audit
Blockchain Infrastructure Audit
Zero-Knowledge Proof Audit
Technical Risk Assessment (TRA)
Penetration Testing
Operational Security Assessment
Deployment Verification
Smart Contract Security Audit
Blockchain Infrastructure Audit
Zero-Knowledge Proof Audit
Technical Risk Assessment (TRA)
Penetration Testing
Operational Security Assessment
Deployment Verification
Support
Keep production systems secure over time
Continuous Support & Maintenance
Designated Blockchain Security Architect
Custom Monitoring Solution
Security Training & Enablement
Continuous Support & Maintenance
Dedicated Blockchain Architect
Custom Monitoring Solution
Security Training & Enablement
Coverage shaped around your payment program, not a fixed package
Talk to a Security ExpertWe combine services from across the lifecycle into the coverage your program actually needs, and adjust it as you grow from a first settlement integration into a multichain, multi-product network. Engage on a defined-scope project, or through the Continuous Security Program for ongoing coverage.
See the full service breakdownon Security Services →
The standard the leading stablecoins already run on
The payment networks and issuers already moving onchain are not betting customer funds on untested code. The libraries behind 9 of the top 10 stablecoins, and 10 of the top 10 tokenized money market funds, are ours, hardened over a decade with no exploits in any fully-remediated code we have audited.
Every engagement pairs world-class security researchers with OpenZeppelin AI, with risk assessment and monitoring running throughout, so issues surface early, while they are still cheap to fix.
+$35 Trillion in value transferred via OpenZeppelin Contracts
9 of the top 10 stablecoins by market cap built on OpenZeppelin Contracts
10 of the top 10 tokenized money market funds by market cap built on OpenZeppelin Contracts
"Huge thanks to OpenZeppelin for being a great partner during the security audit — their expertise and constant support were invaluable for the entire engagement."
"Scaling USDT0 across more than 20 networks means a continuous sequence of deployments, migrations, and governance changes all moving in parallel. OpenZeppelin's continuous coverage model is what makes that possible. Their team carries context across every environment we ship on, and the result is a clean track record since launch."
Built for institutional risk, compliance, and oversight
Security & Compliance
OpenZeppelin runs a security and compliance program aligned with SOC 2 Type II and enterprise requirements, with data privacy, operational controls, and an insurance program built into every engagement.
Shaping Industry Standards
We help write the rules, contributing to the International Organization for Standardization (ISO), the Blockchain Security Standards Council, the Linux Foundation Decentralized Trust, and the Enterprise Ethereum Alliance.
Regulatory & Central Bank Engagement
We engage directly with regulators and policymakers across major jurisdictions, including the U.S. Treasury, SEC, UK FCA, and French ACPR/AMF, and advise central banks and standards bodies such as the Bank for International Settlements.