Netbait IP Scorer

Development

Visit website

Netbait is a free IP reputation API designed to help users determine whether an IP address has been involved in attacks, scanning attempts, or other malicious a.

About Netbait IP Scorer

Netbait IP Scorer is an IP reputation API that returns a real-time score indicating how likely an IP address is associated with malicious activity. It compiles data from scanners, botnets, credential harvesters, proxies, and automated exploit kits observed across the IPv4 address space, correlating this activity to produce a queryable score for a given address via a single API call.

The service is aimed at developers and infrastructure operators who want to filter hostile traffic, such as scanners, botnets, ad-fraud proxies, and scripted duplicate-account creation, before it reaches their systems. The provider reports deploying the system across several hundred routers in production, where it blocked 80% of inbound connections before they reached services behind the network.

The core API is free, with the provider stating this is sustained because their own infrastructure is filtered through the same system, reducing the cost of absorbing hostile traffic.

Key features

Real-time IP reputation scoring across the full IPv4 space
Detects scanners, botnets, credential harvesters, and automated exploit kits
Catalogues addresses tied to DDoS activity, ad fraud rings, and account farms
Millisecond query response for IP lookups
Single API call per connection to score an address

Frequently asked questions

Is the IP Scorer API free?

Yes, the core API is free and the provider states it will stay that way.

What does the IP reputation score measure?

It measures how malicious an address is, based on traces left by scanners, botnets, credential harvesters, and exploit kits.

How is the score computed?

Netbait collects traces of malicious activity across the full IPv4 space, correlates them, and computes a score in real time.

Has Netbait been tested in production?

Yes, it has been deployed across several hundred routers handling real traffic, blocking 80% of inbound connections before they reached services behind the network.