Ruby Integration

Rack middleware for Rails and Sinatra. Step-by-step setup guide with code examples.

186,817 IPs 8,269 reports Free API

Ruby Integration

Ruby 3.0+

Rails

Sinatra

Rack middleware for Ruby on Rails and Sinatra that blocks blacklisted IPs and reports brute-force attempts.

Block

Check visitor IPs against the blacklist and return 403 for threats.

Report

Report detected attacks back to the IPWhois.net Blacklist community.

Coming Soon

This integration guide is being written. In the meantime, you can use the Blacklist API directly:

Check if an IP is blacklisted

GET https://bl.ipwhois.net/api/check?ip=1.2.3.4

Report a malicious IP

POST https://bl.ipwhois.net/api/report
  ip=1.2.3.4&type=brute-force&message=Description

Need this integration? Contact us and we'll prioritize it.