Auth infrastructure built on OIDC and OAuth 2.1 with multi-tenancy, enterprise SSO and RBAC, with prebuilt sign-in flows and SDKs. Open source under MPL-2.0.
logto.ioLogto
Modern open-source auth for SaaS and AI apps
- Category
- Auth & Security
- Pricing
- Open source
- Licence
- MPL-2.0
- Site
- logto.io
- Tags
- authentication, open-source, saas
What it does
Logto is authentication and authorization built on OIDC and OAuth 2.1, with multi-tenancy, SSO and role-based access control, as open-source software or as Logto Cloud.
Who it suits
SaaS teams that want standards-based auth with organizations and roles, hosted or on their own servers.
Price
Logto Cloud Free: $0, up to 50,000 MAU and 50K tokens, no card. Pro: from $24 a month with unlimited MAU, then $0.08 per 100 extra tokens. Enterprise on request. The open-source edition can be self-hosted.
Read on logto.io on 27 October 2026. Prices change: the official page is the reference.
Other sources
Appears in
Authentication tools for SaaS, with Clerk, WorkOS, Stytch, SuperTokens and Ory
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