Free-tier identity and access

Amazon Cognito

Amazon Cognito is an AWS identity and access management service that helps organizations implement secure authentication and authorization for customer applications, AI agents, microservices, and APIs...

ZITADEL is an identity infrastructure platform for authentication and authorization. It provides hosted login, API-first identity management, social login templates, passwordless authentication, multifactor authentication, passkeys, role-based access control, and multi-tenant organization support.

MojoAuth

MojoAuth is a passwordless authentication API that provides OTP, magic links, passkeys, social login, SSO, and MFA through RESTful endpoints and SDKs. The service supports email OTP, phone OTP, WhatsA...

PropelAuth

PropelAuth is an authentication platform for B2B products. It provides hosted and self-hosted options for multi-tenant authentication, organization management, role-based access control, enterprise SSO, SCIM, API key authentication, user impersonation, audit logs, and MCP server authentication.

Auth0

Auth0 is an authentication and authorization platform for web, mobile, and AI agent applications. It provides hosted login flows, social and enterprise connections, passwordless authentication, multif...

Okta Integrator Free Plan

Okta Integrator Free Plan is a web-based identity and access management environment for developers to build, test, and manage integrations with Okta products. The agreement states that it is intended ...

LoginLlama

LoginLlama is an API for login fraud detection that scores authentication attempts in real time before a user is authenticated. It accepts a login request, auto-detects IP address and user agent from ...

WorkOS

WorkOS is an enterprise identity and access platform that provides APIs for adding single sign-on, directory sync, user management, audit logs, role-based access control, bot blocking, and related authentication features to applications.

Logto

Logto is an authentication and authorization platform for developers. It implements OIDC and OAuth 2.1 and adds sign-in flows, multi-tenancy, enterprise SSO, RBAC, MFA, organizations, machine-to-machine authentication, and account APIs for SaaS and AI applications.

Frontegg

Frontegg is a customer identity and access management platform for SaaS applications. It provides authentication, authorization, multi-tenant user management, SSO, SCIM, MFA, admin portals, and analytics through a low-code platform and developer APIs.

Esper

Esper is an enterprise mobile device management platform for dedicated devices running Android, iOS, Windows, and Linux. It provides cloud-based device enrollment and provisioning, kiosk and multi-app...

Kinde

Kinde is a developer platform for authentication, billing, access management, feature flags, and user management in SaaS applications. It provides hosted auth flows, SDKs for multiple languages and fr...