IPWhois.net Blacklist API vs Scanii API

Two free Anti-Malware APIs compared on access, reliability and developer ratings, using data from our daily health checks.

The verdict

	IPWhois.net Blacklist API	Scanii API
What it does	Community IP blacklist to check and report abusive IP addresses.	Simple REST API that can scan submitted documents/files for the presence of threats.
Provider	ipwhois.net	scanii.com
API key	Not needed	Required
HTTPS	Yes	Yes
CORS (browser calls)	Unknown	Yes
Status today	Online · 1260 ms	Online · 1578 ms
Uptime (30 days)	Up	Up
Developer rating	Not rated yet	Not rated yet
Price	Free / free tier	Free / free tier

Community IP blacklist to check and report abusive IP addresses.

Strengths

Simple REST API that can scan submitted documents/files for the presence of threats.

Scanii documentation portal

Strengths

Prototyping or a tutorial? Pick the one that needs no API key.
Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
Still unsure? Both are free to try: send one request to each and compare the data you get back.

Scanii API requires an API key; IPWhois.net Blacklist API doesn't, so IPWhois.net Blacklist API is quicker to try.

Scanii API supports CORS, so front-end JavaScript can call it directly. Call the other from a server.