7 Best OFAC APIs for Sanctions Screening in 2026
The best OFAC API combines frequently updated OFAC data, accurate fuzzy matching, and reliable false-positive management in a developer-friendly package.
Our top pick is SanctionsLookup; it syncs OFAC data every 15 minutes, delivers advanced fuzzy matching with audit-friendly match reasons, and includes crypto wallet screening and startup-friendly pricing.
Best OFAC APIs: Top Picks
- Best for developers: SanctionsLookup
- Best for broader AML: sanctions.io
- Best for KYC/AML: ComplyAdvantage
- Best for crypto exchanges: Chainalysis
- Best for crypto monitoring: TRM Labs
- Best for enterprise screening: LexisNexis
- Best for raw data: OpenSanctions
1. SanctionsLookup — Best OFAC API for Developers
SanctionsLookup is the best real-time OFAC API for developers, startups, and small businesses that need OFAC screening without enterprise sales calls, forced contracts, or long setup cycles.
Pros
- Focused OFAC API, not bloated AML software
- 15-minute OFAC data sync
- Startup-friendly pricing from $49/month
- Single batch endpoint for 1–20 subjects per request
- Screens individuals, entities, vessels, aircraft, and crypto wallets
- Strong false positive control with hard/soft attributes
- Human-readable match reasons
- Free OFAC search UI available for manual checks
Cons
- No PEP or adverse media screening
- Newer provider with less brand recognition
SanctionsLookup’s strength is that it does one thing well: OFAC screening. It focuses on OFAC SDN and Consolidated List screening rather than trying to replace a full AML platform. It also covers individuals, entities, vessels, aircraft, and crypto wallets, with OFAC data synced every 15 minutes, the fastest published update frequency in this comparison.
The API is fully self-serve, with transparent pricing starting at $49/month. Developers can test without a credit card and make the first call in minutes. Documentation is in-depth and comes with code examples in 8 languages (including Python, Java, and Go).
One endpoint supports both single checks and small-batch screening for 1–20 subjects, which is essential for increasing throughput.
One notable feature is the false positives control. SanctionsLookup has advanced fuzzy matching that supports aliases, AKAs, transliteration, multi-script names, and hard/soft attributes like IDs, tax IDs, birthdate, gender, and address. Results also include human-readable match reasons.
Crypto wallet screening is built into the same workflow, so teams can screen wallets directly or alongside person/entity data without needing a full blockchain intelligence platform.
Why it ranks #1: SanctionsLookup has the strongest fit for OFAC-focused API buyers because it combines 15-minute data syncs, advanced fuzzy matching, audit-friendly match reasons, crypto wallet screening, self-serve access, and startup-friendly pricing.
Verdict: SanctionsLookup is the best OFAC API for teams that want fresh OFAC data, fast setup, simple integration, strong matching controls, and crypto wallet screening without enterprise AML platform overhead.
2. sanctions.io — Best for Compliance Teams
sanctions.io is a screening API built for compliance teams that need broader AML coverage.
Pros
- Covers sanctions, PEPs, criminal watchlists, and adverse media
- Designed for automated compliance workflows
- Supports real-time and batch screening
- Async batch endpoint
Cons
- 60-minute sync frequency is slower than SanctionsLookup’s 15-minute sync
- Pricing and evaluation require sales calls and contracts
- A broader platform may be unnecessary for teams that only need OFAC screening
Sanctions.io covers sanctions, PEPs, criminal watchlists, and adverse media, making it useful for companies that want multiple risk checks in one workflow.
The API supports real-time and batch screening for individual users, businesses, and larger customer lists. Published sanctions list updates run every 60 minutes, which is reasonable for broad watchlist screening, though slower than SanctionsLookup’s 15-minute OFAC sync.
Because sanctions.io covers several risk categories, it is best suited for teams that need more than OFAC-only screening. Teams focused only on OFAC checks may find the broader scope more than necessary.
Verdict: sanctions.io is a solid choice for broader AML screening, especially when PEPs, criminal watchlists, and adverse media are part of the requirement.
3. ComplyAdvantage — Best for KYC and AML
ComplyAdvantage is a broader AML and financial crime platform built for fintechs, banks, payment companies, and regulated businesses that need more than OFAC screening.
Pros
- Broad AML and financial crime coverage
- Includes sanctions, PEPs, and adverse media
- Good fit for fintech compliance teams
- Useful when screening is part of a larger KYC/AML workflow
Cons
- May be overkill for OFAC-only screening
- More complex than lightweight API-first tools
- Pricing and setup may require more evaluation
- Less suited for teams that only need simple OFAC API access
Its strength is breadth. ComplyAdvantage covers sanctions, watchlists, PEPs, adverse media, customer screening, and broader financial crime workflows. This makes it a good fit for teams that want KYC, AML, and sanctions screening in one platform.
The tradeoff is complexity. For companies that only need OFAC API checks, ComplyAdvantage may be more platform than necessary. It is better suited for compliance teams with broader AML requirements, not teams looking for a narrow OFAC-only screening layer.
Verdict: ComplyAdvantage is a strong AML platform for fintech and regulated teams that need broad compliance coverage, but it may be more than necessary for OFAC-only screening.
4. Chainalysis — Best for crypto exchanges
Chainalysis is best known for blockchain analytics, crypto investigations, and crypto compliance.
Pros
- Strong crypto compliance and investigation focus
- Useful for exchanges, custodians, and financial institutions
- Helps analyze blockchain risk beyond direct sanctions list checks
- Strong brand recognition in crypto compliance
Cons
- More focused on blockchain analytics than general OFAC API screening
- May be more complex than needed for basic OFAC checks
- Better suited to larger crypto compliance operations
- Not designed as a general-purpose sanctions screening API
Chainalysis is a strong fit for exchanges, custodians, law enforcement, and financial institutions that need deep blockchain intelligence.
For crypto companies, Chainalysis is useful when the compliance problem goes beyond checking whether a wallet is directly listed on OFAC. It helps teams investigate blockchain activity, identify exposure to illicit actors, and understand transaction flows across crypto networks.
That depth is valuable, but it also makes Chainalysis more specialized than a standard OFAC API. Teams that only need basic sanctions screening may not need a full blockchain investigation platform.
Verdict: Chainalysis is a strong choice for crypto exchanges and investigation-heavy compliance teams, but it may be more than needed for basic OFAC screening.
5. TRM Labs — Best for High-Volume Crypto Transaction Screening
TRM Labs is best suited for crypto exchanges, financial institutions, and large compliance teams that need wallet screening, transaction monitoring, and blockchain risk intelligence at scale.
Pros
- Strong fit for crypto-native compliance teams
- Built for wallet, transaction, and blockchain risk workflows
- Useful for exchanges and financial institutions
- Good option for high-volume crypto monitoring
Cons
- More specialized than a standard OFAC API
- Better suited for larger crypto compliance teams
- May be unnecessary for direct OFAC-only screening
- Evaluation and pricing are more enterprise-oriented
TRM is useful when sanctions screening goes beyond direct OFAC list checks. It helps teams evaluate wallet risk, transaction exposure, and blockchain activity linked to sanctioned entities or other financial crime risks.
That makes TRM a strong fit for crypto-native compliance teams with high-volume monitoring needs. However, it is more specialized than a standard OFAC API and may be more than necessary for teams that only need direct sanctions screening.
Verdict: TRM Labs is a strong choice for crypto teams that need wallet risk, transaction monitoring, and blockchain intelligence at scale.
6. LexisNexis Risk Solutions — Best for Enterprise Watchlist Screening
LexisNexis Risk Solutions is an enterprise-grade compliance and risk intelligence provider for banks, financial institutions, insurers, and large regulated businesses that need broad watchlist screening.
Pros
- Strong enterprise reputation
- Broad global watchlist and sanctions coverage
- Suitable for banks and large regulated institutions
- Supports ongoing monitoring and complex compliance workflows
Cons
- Pricing and access typically require a sales process
- More complex than needed for basic OFAC screening
- Not designed as a lightweight self-serve API
- Crypto wallet screening is not the core focus
Its strength is enterprise coverage. LexisNexis supports sanctions, watchlists, ongoing monitoring, and risk intelligence workflows across large compliance programs. It is a better fit for organizations with dedicated compliance teams, formal procurement, and complex screening requirements.
Because of that enterprise focus, LexisNexis may be more than smaller teams need for basic OFAC screening. Pricing and access typically require a sales process, and implementation can be heavier than API-first screening tools.
Verdict: LexisNexis is a strong fit for large organizations that need enterprise watchlist screening, but it may be too heavy for teams looking for simple OFAC API access.
7. OpenSanctions — Best for Raw Sanctions and Watchlist Data
OpenSanctions is best for developers, researchers, and compliance teams that want structured sanctions and watchlist data rather than a fully managed screening product.
Pros
- Transparent sanctions and watchlist data
- Useful for developers and researchers
- Good option for custom compliance infrastructure
- Supports teams that want more control over the data layer
Cons
- More of a data layer than a finished screening product
- Requires engineering work to operationalize
- Matching and workflow logic may need to be built internally
- Less suitable for teams that want a ready-to-use OFAC API
Its main advantage is transparency. OpenSanctions aggregates public sanctions, PEP, crime, and watchlist datasets into a structured format, making it useful for teams that want to inspect the data, build internal tools, or host parts of their screening infrastructure themselves.
The tradeoff is that OpenSanctions is more of a data layer than a plug-and-play OFAC API. Teams may still need to build matching logic, false positive handling, audit trails, monitoring, and compliance workflows around the data.
Verdict: OpenSanctions is useful for teams that want raw sanctions data and control over implementation, but it requires more engineering work than a managed screening API.
What is an OFAC API?
An OFAC API is a programmatic tool that lets software automatically screen people, businesses, vessels, aircraft, or crypto wallets against OFAC sanctions lists, including the SDN List and Consolidated Sanctions List.
Instead of manually searching OFAC records, companies can connect an API to onboarding, payments, KYB, KYC, or transaction workflows.
A top OFAC API should return fast results, support fuzzy matching, reduce false positives, provide match reasons, and keep sanctions data updated frequently.
Key OFAC API Features to Look For
The best OFAC API should do more than return a basic name match. It should help your team screen accurately, reduce false positives, respond fast, and keep sanctions data fresh enough for real onboarding and transaction workflows. Here are the essential features you need.
Sanctions List Coverage: SDN + CONS
At a minimum, an OFAC API should cover the SDN List and the Consolidated Sanctions List. These are the core OFAC datasets most teams need for U.S. sanctions screening. Broader global lists can be useful, but weak OFAC coverage is a dealbreaker.
Frequent List Updates
Daily updates are not enough for high-risk workflows. OFAC can publish multiple changes in a short period, so stale data can create compliance gaps. Look for updates at least hourly, with 15-minute syncs being ideal for teams screening users, payments, or crypto activity.
Fuzzy Name Matching
Exact-name matching is not enough for sanctions screening. A good OFAC API should handle misspellings, aliases, AKAs, transliteration, multi-script names, and name variations. This helps detect risky matches even when the submitted name does not perfectly match the sanctions record.
Audit Support
Your API should return enough detail to support internal review and compliance records. Look for timestamps, match explanations, matched list details, source data, and configurable match thresholds. These make it easier to explain why a user, company, or wallet was flagged.
False Positive Tuning
A strong OFAC API should help reduce bad alerts, not just create more of them. Hard attributes like IDs and tax IDs, plus soft attributes like birthdate, gender, and address, help separate real matches from weak name-only hits. This keeps teams from being buried in false positives.
Developer-Friendly API
The API should be simple to test, integrate, and maintain. Look for a REST API, JSON responses, clear documentation, code examples, batch screening, and predictable error handling. A good developer experience matters because sanctions screening often needs to fit directly into product workflows.
Real-Time Screening
Real-time responses are essential for onboarding, payments, and transaction screening. Ideally, the API should respond in under 500ms for normal checks so users are not stuck waiting. Slow screening creates friction and can make compliance harder to build into live workflows.
Free OFAC API vs Paid OFAC API
A free OFAC API or public OFAC dataset can help with basic lookups, testing, or internal research.
The tradeoff is that you usually need to build and maintain the screening logic yourself, including fuzzy matching, aliases, transliteration, false-positive tuning, batch checks, audit records, and update monitoring.
That engineering cost can quickly outweigh the savings. Paid OFAC APIs are better for production workflows because they package the data, matching logic, updates, and developer tools into a maintained service.
Why Ecommerce Businesses Need OFAC Screening
Ecommerce businesses are not automatically exempt from OFAC compliance. If a transaction involves a sanctioned individual, business, country, supplier, or marketplace seller, the company may face compliance risk even if the match was unintentional. An OFAC API helps ecommerce teams screen these risk points automatically before orders, payouts, or vendor payments move forward.
- Vendors and suppliers: Every supplier, manufacturer, fulfillment provider, or logistics partner you pay can create OFAC exposure. Screening vendors before onboarding and before payments helps reduce the risk of sending funds to a sanctioned party.
- Checkout: Customer orders can also create sanctions risk, especially with international shipping, high-risk regions, unusual payment details, or names that resemble SDN List entries. Real-time OFAC screening at checkout helps flag potential matches before the transaction is completed.
- Marketplaces: Marketplaces need to consider sellers as well as buyers. A sanctioned seller, business, or payout recipient can create risk for the platform. Screening sellers at onboarding and rescreening them as OFAC lists update helps keep marketplace activity aligned with sanctions requirements.
FAQ
What is the best OFAC API?
SanctionsLookup is the best OFAC API for most companies. It combines 15-minute data syncs, advanced fuzzy matching, crypto wallet screening, and self-serve access with transparent pricing, without requiring a sales call or enterprise contract.
What is an OFAC API?
An OFAC API is a programmable interface that lets your application check names, entities, or crypto wallets against the U.S. Treasury’s Office of Foreign Assets Control sanctions lists in real time. Instead of manually downloading and querying OFAC data, your app sends a request and gets back a match result instantly.
Does OFAC have an official API?
OFAC provides a free public data feed API, but not a screening API. The official feed requires you to handle your own parsing, hosting, updates, and matching logic. Third-party OFAC APIs wrap this data into a clean REST API with fuzzy matching, regular updates, and audit-ready responses built in.
Is there a free OFAC API?
Some providers offer free tiers with limited monthly lookups, and OFAC’s own data is publicly downloadable at no cost. For production use, a paid API is worth it; free tiers typically lack fuzzy matching, reliable update frequency, and the audit trails that compliance requires.
What OFAC lists should an API screen?
At a minimum, a good OFAC API screens the Specially Designated Nationals (SDN) list, the primary OFAC sanctions list. It should also cover the Consolidated Sanctions List, which includes the Foreign Sanctions Evaders (FSE), Sectoral Sanctions Identifications (SSI), and Non-SDN Palestinian Legislative Council (NS-PLC) lists. Comprehensive coverage matters because exposure can come from any of these lists, depending on your business and counterparties.
How often should an OFAC API update sanctions data?
OFAC can update its lists at any time, including same-day additions following geopolitical events. Your API should sync at least every 15 minutes. Daily updates are not sufficient for production compliance; the gap between an OFAC designation and your next sync is your exposure window.
What is fuzzy matching in an OFAC API?
Fuzzy matching catches name variations, misspellings, transliterations, and aliases that exact matching misses. A sanctioned entity named “Mohammed Al-Rashid” might appear in your system as “Mohamed Alrashid”, an exact match returns nothing, a fuzzy match flags it for review. Good fuzzy matching balances sensitivity (catching real matches) with specificity (not drowning your team in false positives). The match reason returned alongside each result is what makes the difference auditable.
What is the difference between an OFAC API and a sanctions screening API?
An OFAC API screens specifically against U.S. Treasury sanctions lists. A sanctions screening API typically covers multiple jurisdictions, OFAC, UN Security Council, EU, UK OFSI, and others, in a single lookup. If your business operates internationally or has non-US counterparties, a broader sanctions screening API reduces the risk of missing designations outside the US lists. If you’re primarily US-focused, a dedicated OFAC API is simpler and often faster.
Can an OFAC API screen crypto wallets?
Yes, the best OFAC APIs support crypto wallet address screening alongside name and entity checks. OFAC has designated specific blockchain addresses belonging to sanctioned individuals and entities; transacting with these wallets carries the same legal exposure as dealing with a sanctioned person. SanctionsLookup includes crypto wallet screening natively, making it practical for fintechs and crypto platforms that need both name and wallet coverage in one API.
What data should I send to an OFAC API?
At a minimum, send the full name of the individual or entity you are screening. For stronger match accuracy, include date of birth, nationality, country, and any known aliases. For crypto screening, send the wallet address. The more data you send, the more confidently the API can confirm a true match or rule out a false positive, which directly reduces the manual review burden on your compliance team.
