Castle
Castle is a fraud and account-abuse prevention platform that stops bots, credential stuffing, account takeover, and multi-accounting through behavioral analysis and device fingerprinting — without CAPTCHAs or puzzles for legitimate users. Developers integrate a client-side SDK (browser and mobile) t
Castle is an API provider whose private shares are listed on 1 secondary market: Nasdaq Private Market.
Castle publishes 1 API indexed on the APIs.io network.
Where It Trades
Listing data is compiled from the public marketplace pages of Forge Global, Hiive, EquityZen, Nasdaq Private Market, and Augment. A listing indicates that a venue has published a page for this company — it is not an offer, a quote, or investment advice, and APIs.io has no affiliation with any venue.