Best Sanctions Screening APIs in 2026
A developer's guide to choosing the right sanctions screening API. Pricing, accuracy, coverage, and DX compared.
Sanctions screening is no longer optional for fintechs, crypto platforms, neobanks, and any company that moves money. Regulators in the US, EU, and UK expect you to screen customers and counterparties against OFAC, EU consolidated lists, UN sanctions, and other watchlists. Failure to screen can mean six- and seven-figure fines, lost banking partnerships, and reputational damage that is hard to recover from.
The good news is that the API landscape has matured. In 2026 you have real choices: enterprise platforms like ComplyAdvantage, developer-first APIs like Verifex, open-source options like OpenSanctions, and everything in between. The challenge is cutting through marketing pages to find what actually matters for your use case.
When evaluating sanctions screening APIs, five dimensions matter most. Coverage tells you which watchlists the API checks against -- the core set is OFAC SDN, EU consolidated, UN, and UK sanctions, but PEP screening and adverse media add significant value. Matching quality determines how well the engine handles transliteration, partial names, and fuzzy matches -- this is where published benchmarks matter, because most vendors claim high accuracy without providing reproducible evidence.
Pricing transparency is critical for startups budgeting their compliance spend. Some providers publish clear per-screen or flat-rate pricing, while others hide costs behind sales calls and credit-based models. Developer experience covers SDK availability, documentation quality, response time, and how fast you can go from signup to first successful API call. Finally, compliance features like audit logs, batch screening, and confidence scores determine whether the API can grow with you as your regulatory requirements evolve.
Below we compare Verifex against the industry baseline across these dimensions, followed by detailed breakdowns of every major provider. Whether you are a solo developer building an MVP or a compliance team evaluating vendors, this guide gives you the data you need to make an informed choice.
Feature Comparison
| Feature | Verifex | Industry Typical |
|---|---|---|
| Transparent pricing | Varies | |
| Free tier | Rare | |
| Published benchmark | Rare | |
| Self-serve signup | Varies | |
| Python SDK | Varies | |
| Node.js SDK | Varies | |
| PEP screening | Varies | |
| Sub-50ms response | Varies | |
| Confidence scores | Varies | |
| Batch API | Varies |
Based on publicly available data as of April 2026. Features and pricing may have changed.
Choose Verifex if you need:
- Best price-to-coverage ratio at $29/month for 8 lists + PEP
- Published accuracy benchmark you can reproduce independently
- Self-serve signup with a free tier of 100 screens/month
- Python and Node.js SDKs with typed responses
- Sub-50ms median response time
Choose Industry Typical if you need:
- Enterprise options available for complex compliance programs (ComplyAdvantage)
- Broadest list coverage with 75+ sources (sanctions.io)
- Adverse media and negative news screening (ComplyAdvantage, dilisense)
- Open-source self-hosted option for full control (OpenSanctions)
- Pay-as-you-go pricing for very low volumes (NameScan)
Get started in 3 lines
curl -X POST https://api.verifex.dev/v1/screen \
-H "Authorization: Bearer vfx_sk_live_..." \
-H "Content-Type: application/json" \
-d '{"name": "Vladimir Putin", "type": "person"}'Frequently Asked Questions
What is a sanctions screening API?
A sanctions screening API lets you programmatically check a person or entity name against government sanctions lists (OFAC, EU, UN, UK, and others). You send a name, the API returns any matches with confidence scores and list details. This is a core requirement for KYC and AML compliance.
How many sanctions lists do I need to cover?
At a minimum, most fintechs need OFAC SDN (US), EU consolidated list, UN sanctions, and UK sanctions. If you serve customers globally, you may also need country-specific lists. PEP screening is increasingly expected by regulators and banking partners even when not strictly required.
What is the difference between sanctions screening and PEP screening?
Sanctions screening checks names against government sanctions and embargo lists. PEP screening checks whether someone is a Politically Exposed Person -- a current or former government official, or a close associate. PEP status does not mean the person is sanctioned, but it increases risk and triggers enhanced due diligence requirements.
Why does a published benchmark matter?
Every screening vendor claims high accuracy, but few provide reproducible evidence. A published benchmark lets you verify match quality independently, compare vendors on the same dataset, and make data-driven decisions instead of trusting marketing claims.
Can I use a free or open-source solution instead?
OpenSanctions provides free, open-source sanctions data that you can self-host. This works well if you have the engineering resources to maintain infrastructure, keep data updated, and build your own matching engine. Managed APIs like Verifex handle all of this for you starting at $29/month.
How fast should a sanctions screening API respond?
For real-time screening during onboarding or transaction flows, sub-200ms is the baseline expectation. Verifex delivers sub-50ms median response times. For batch screening of existing customer databases, throughput (screens per second) matters more than individual response latency.