Stytch
Authentication APIs, SDKs, and UI components for customer login, enterprise identity, service authorization, and device intelligence.
About Stytch
Stytch supplies APIs, SDKs, and interface components for application authentication and security. It supports password login, one-time passcodes, magic links, social OAuth, authenticator-app TOTP, and SAML or OIDC single sign-on, along with sessions and organization access. Teams can also use SCIM provisioning, machine-to-machine credentials, OAuth flows for AI agents, and device intelligence designed to catch credential stuffing and free-trial abuse. The documentation provides quickstarts, sample applications, API and SDK references, and production migration guidance. Its free tier includes allowances for monthly active users, enterprise connections, M2M tokens, and device fingerprints. Projects that exceed those allowances keep running and move into usage-based billing. The combined product surface can reduce the number of identity and abuse tools a team integrates, though rollout still calls for application work, careful migration, and active cost monitoring as usage grows.
Best for
Best use cases
Launch passwordless or password-based sign-in for a customer application
Add enterprise SSO and directory provisioning to a multi-tenant SaaS product
Authorize services or AI agents while monitoring suspicious devices
Compare before choosing
Compare included free allowances against expected MAUs, connections, tokens, and fingerprints
Check SDK and framework fit before committing to an application migration
Model usage charges for growth because costs continue after free allowances
Features
Customer authentication
Add email and password login, password resets, one-time passcodes, magic links, social OAuth, and session management to consumer applications.
Business identity and access
Support multi-tenant applications with SAML or OIDC single sign-on, SCIM connections, organization access, and administrative components.
Service and agent authorization
Issue machine-to-machine credentials and build OAuth-compliant authorization flows for services, AI agents, and connected applications.
Fraud and abuse prevention
Use device intelligence to identify credential stuffing, repeated free-trial abuse, and other suspicious authentication activity.
Pros
- The free tier includes concrete allowances for MAUs, enterprise connections, M2M tokens, and fingerprints.
- APIs, SDK references, sample apps, and customizable UI components support several integration paths.
- Authentication, enterprise identity, service authorization, and device signals can share one platform.
Cons
- Costs become usage based after the included allowances, so growing products need ongoing usage forecasts.
- Replacing an existing identity stack requires migration work and careful handling of users and sessions.
- The broad product surface adds implementation choices that teams must test against their frameworks and access model.
Pricing Plans
Free tier and usage-based growth
- 10,000 monthly active users included
- 5 SSO or SCIM connections included
- 1,000 M2M tokens included
- 10,000 device fingerprints included
- No hard cap when included usage is exceeded
* Pricing information is for reference only. Please refer to the latest announcement on Stytch's official website.