The company behind
the API.
Sentinel is built by Sentinel Edge Networks LTD, a company registered in England & Wales. We build one product: a real-time fraud detection API that identifies VPNs, residential proxies, antidetect browsers, and automated abuse in under 40 milliseconds — and we publish the research behind it.
What we build
Most fraud tooling was designed for an older internet: datacenter IPs, obvious bots, known-bad blocklists. The abuse we focus on looks different — commercial antidetect browsers such as Kameleo, GoLogin, Multilogin, AdsPower, and Dolphin{anty}; residential proxy networks that route attacks through clean home IPs; and AI-driven automation that mimics human behavior. Sentinel evaluates the network layer and the device layer together in a single API call, so the operator running five hundred “different” accounts from one laptop stops looking like five hundred different users.
The product is documented in the API reference, priced on the pricing page (the free tier is 1,000 requests per hour with no card required), and verifiable without signing up via the free IP lookup tool.
How the research desk works
The Sentinel research blog exists because we test things. We buy and run the same antidetect browsers, proxy services, and automation frameworks that fraud operators use, point them at our own detector, and publish what fired and what did not — including the live tests where we show the scanner output signal by signal. When a claim in an article is measurable, we prefer to measure it.
That is also why comparison content on this site names its limits: where a competitor's public documentation shows no coverage for something, we say “we have not seen documented detection,” not “they cannot do it.”