Screen crypto addresses, emails, websites, IDs and countries against OFAC, EU, UK sanctions lists.
CompliAPI is a free Security API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
Real-time sanctions and financial-crime screening for developers
Details from docs.compliapi.com.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Encrypting & decrypting text messages
CISA KEV catalog of actively exploited CVEs as JSON, filterable by vendor, with CWE and due dates
Ephemeral zero-knowledge encrypted data sharing
The CompliAPI is provided by CompliAPI (docs.compliapi.com). Real-time sanctions and financial-crime screening for developers
Yes. The CompliAPI is listed in the Security category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The CompliAPI uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The CompliAPI supports CORS, so front-end JavaScript can call it directly.
Yes. The CompliAPI is served over HTTPS, so it's safe to use in production.