Kratos
API-first identity and user management system for cloud-native applications, scaling to billions of users.
What is Kratos?
Ory Kratos is an API-first identity and user management system for cloud-native applications. It centralizes authentication and user management workflows—like login, registration, and account recovery—so developers can consume them via APIs instead of building them from scratch. It solves the problem of fragmented, homegrown identity solutions by providing a scalable, secure, and standardized approach.
Developers and engineering teams building cloud-native applications who need robust, scalable authentication and user management without vendor lock-in. It's ideal for organizations migrating from providers like Auth0 or Okta, or those implementing identity for the first time.
Developers choose Ory Kratos because it offers better developer experience and user experience compared to commercial alternatives, with the flexibility of self-hosting or using a managed service. Its API-first design integrates seamlessly with any UI framework and scales to handle billions of users.
Overview
Headless cloud-native authentication and identity management written in Go. Scales to a billion+ users. Replace Homegrown, Auth0, Okta, Firebase with better UX and DX. Passkeys, Social Sign In, OIDC, Magic Link, Multi-Factor Auth, SMS, SAML, TOTP, and more. Runs everywhere, runs best on Ory Network.
Use Cases
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