Proxy Check
Proxy Check provides a proxy detection API for identifying proxy connections used in online services and game servers.
About Proxy Check
Proxy Check is a proxy and VPN detection API. It is intended to identify proxy connections used with online businesses, game servers, and blogs, so operators can reduce the effects of proxy use. The homepage shows an example lookup by IP address through a v3 API endpoint.
The API can be tried with or without an API key. A web interface with lookup pages is also available in a browser. The homepage describes a free plan and a paid plan but does not list which features each includes. It also does not describe detection methods, accuracy, or how lookup data is handled.
Key features
- Detects proxy and VPN connections through a lookup API
- Looks up IP addresses through a v3 API endpoint
- Can be tried with or without an API key
- Web interface and lookup pages for checking addresses in a browser
Best for: Operators of internet businesses, game servers, or blogs who want to identify proxy or VPN connections.
Good for
- Free plan is described as full featured
- API can be tested without an API key
Watch out for
- Feature availability differs between free and paid customers
Proxy Check at a glance
- Website
- proxycheck.io
- Category
- Privacy & Security › Security Tools
- Type
- Website
- Pricing
- Freemium
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Security Tools
Proxy Check alternatives
Tools and sites you could use instead, ranked by how closely they match.
IP Intelligence detects proxies and VPN connections through an API intended to help prevent fraud.
The Hitch proxy handles TLS connections for Varnish and is described by its project as open source.
IPv6 Leak Test checks whether a device has IPv6 connectivity and displays connection information related to privacy.
Terminate TLS connections through Hitch, a scalable TLS proxy from Varnish Software.
Snyk helps software teams identify and manage security risks in code and dependencies while building AI-enabled applications.
Kismet monitors and captures Wi-Fi network traffic, with wireless intrusion detection and wardriving features.
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Proxy Check FAQ
Can I try the API without an API key?
Yes. The homepage says the API can be tried with or without an API key.
Is there a free plan?
Yes. The site describes a premium proxy detection API with a full featured free plan. Pricing is listed as freemium.
Can I check IP addresses without writing code?
Yes. The site offers a web interface and lookup pages that can be used in a web browser.
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