
Collect and share malware samples.
MalwareBazaar API is a free Anti-Malware API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
MalwareBazaar Community API documentation
Details from bazaar.abuse.ch.

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.
Malware Archive / file sourcing
IP/domain/URL reputation
Provide malware datasets and threat intelligence feeds
Yes. The MalwareBazaar API is listed in the Anti-Malware 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 MalwareBazaar API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the MalwareBazaar API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The MalwareBazaar API is served over HTTPS, so it's safe to use in production.