Anti-Malware · head-to-head
AbuseIPDB vs AlienVault Open Threat Exchange (OTX)
AbuseIPDB is a crowdsourced IP, domain, and URL reputation database where network operators report malicious activity like brute-force attempts, spam, and port scans. A live GET against the real gateway, api.abuseipdb.com/api/v2/check, returned a 401 with an invalid key rather than a CORS-enabled response, reconfirming API-key auth over HTTPS and resolving cors to no. A free Individual tier allows 1,000 checks a day forever with no card required, while paid Basic/Premium/Enterprise plans raise the daily ceiling for high-volume users.
Open Threat Exchange is AT&T Cybersecurity's community threat-intelligence platform, now operated under the LevelBlue brand, where contributors publish "pulses" of malicious IPs, domains, hashes, and URLs that anyone can query. A live, unauthenticated GET against its IPv4 general-info endpoint returned a full 200 JSON response, and both that call and its OPTIONS preflight echoed the request's Origin in Access-Control-Allow-Origin, resolving cors to yes; an OTX-API-KEY is still needed for higher rate limits and pulse subscriptions. Signup, the API key, and the community feed itself are all free.
| AbuseIPDB | AlienVault Open Threat Exchange (OTX) | |
|---|---|---|
| Authentication | API Key | API Key |
| Pricing | freemium | free |
| Formats | JSON | JSON |
| CORS | no | yes |
| HTTPS | Yes | Yes |
AlienVault Open Threat Exchange (OTX) supports CORS, while AbuseIPDB doesn't — pick AlienVault Open Threat Exchange (OTX) for direct browser calls.