The WebKnox proxies API lets you retrieve public proxies. We try to keep a list of fresh, unblocked, high responsive, and alive proxies. Public proxies come and go so it is not guaranteed that they are available at the point of retrieval. You can improve proxy delivery by sending feedback whether a proxy is blocked or dead.
The IP Blocklist API will detect potentially malicious or dangerous IP addresses. This API is ideal for systems that need to either block, filter or flag certain types of Internet users or automated systems. We currently detect the following types of IPs: Web proxies, TOR nodes, VPN providers, Spyware and malware, Hijacked IPs, Web spiders, Bots and exploit scanners. These lists are updated on a daily basis.
Proxy Rotator is the world's first enterprise grade proxy ip rotation service. HTTPS proxies on a combination of over 26 million Residential, Private and Public Exclusive IP's. It's Easy to Use, Reliable and used by 1000's of Businesses daily. Proxy Rotator's Rotating Proxy API is an RESTful API which can be integrated into any script in any language. Providing a simple jSON or XML response the API is supported in all programming languages by default. Each request to the API returns a fresh new proxy to be used in your script and your request can be fully customized to return a proxy of your exact requirements at any given time.
The IP2Proxy™ Proxy Detection is a hosted REST web service that allows instant detection of anonymous proxy, VPN, TOR exit nodes and Search Engine Robots (SES) by IP address. Credits are needed to perform queries which can be purchased online at http://www.ip2location.com/ip2proxy-web-service.
Proxy Rotator is the world's first enterprise grade proxy ip rotation service. HTTPS proxies on a combination of over 26 million Residential, Private and Public Exclusive IP's. It's Easy to Use, Reliable and used by 1000's of Businesses daily. The Proxy Detection API can detect if an IP address is, or has ever been, related to a proxy. With a database of over 26,000,000 worldwide proxies our probability of detecting a proxy based upon the ip address is unmatched. This API is useful for many scenario's such as reducing fraud on e-commerece sites, protecting your site from automated hacking attempts (XSS,SQLi,brute force), Prevent promotional offer abuse (multiple signups), limiting access on proxy IPs (prevent password / email changes) and many more uses!
IPQ's Proxy Detection can detect low quality IP connections that indicate fraudulent activity such as proxies, VPNs, & Tor connections. Reduce fraud and potential chargebacks by detecting high risk IP addresses. This service is excellent for affiliate networks and advertisers that want to avoid fraudulent traffic, merchants that want to avoid chargebacks, forums that want to block spammers, and other services looking to eliminate fraudulent signups and purchases. Get 5,000 FREE monthly queries, create a free account at IPQualityScore.com.
The IP2Proxy Proxy Detection Web Service allows instant detection of anonymous proxy by IP address. The IP2Proxy Proxy Detection Web Service enables you to check proxy servers for anonymity. Sign up for free license key at http://www.fraudlabs.com/freelicense.aspx?PackageID=3 which allows up to 90 queries a month.