MalShare vs NoPhishy

MalShare is a community-run, free public malware sample repository: registered users pull hash lists, per-sample metadata, and the raw binaries themselves through a single api.php endpoint, or upload their own finds back to the pool. A live GET against that endpoint with an invalid key returned a plain-text "user specified in api_key GET variable does not exist" error rather than any CORS header, reconfirming API-key auth over HTTPS and reconfirming cors as no. Standard registered keys are free and capped around 2,000 calls a day, a limit MalShare says it will raise on request.

NoPhishy (listed on RapidAPI as Exerra Phishing Check) queries a maintained database of 299,000+ known phishing domains, refreshed roughly every two hours, to flag whether a submitted URL or domain is a known phishing attempt. A live GET through the real RapidAPI gateway host with an invalid x-rapidapi-key returned a 403 rejection rather than a network-level block, reconfirming API-key auth over HTTPS, and Access-Control-Allow-Origin echoed the request's Origin on that same call. Like other RapidAPI-distributed APIs it offers a free Basic plan alongside paid tiers for higher request volumes.