Stytch

APIs and SDKs for authentication, B2B identity and fraud prevention.

passwordlessfraud

Websitestytch.com

CategoryAuth & users

PricingFreemium

Card requiredNo

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ABOUT

What is Stytch?

Stytch is an API-first authentication platform with a strong focus on passwordless flows and fraud prevention. It offers email magic links, SMS and WhatsApp OTP, OAuth, session management and a dedicated B2B product for organization-based SSO. Built-in device fingerprinting and bot detection make it suitable for apps where security matters as much as UX.

BEFORE YOU SIGN UP

What you should know

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Best-in-class passwordless authMagic links, SMS/WhatsApp OTP, biometrics and passkeys are first-class methods, not afterthoughts.

✓

Built-in fraud preventionDevice fingerprinting, bot detection and suspicious login monitoring come standard, not as an add-on.

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B2C and B2B share the free MAU allowanceThe current model includes 10,000 MAUs, unlimited organizations and five SSO or SCIM connections before usage charges apply.

Usage-based after the free allowanceThere is no feature-gated paid tier: usage beyond the included MAUs, SSO/SCIM connections and other allowances is billed at published pay-as-you-go rates.

COMMUNITY

From the forums

Developers praise Stytch's passwordless-first approach and fraud detection capabilities. The API documentation is well-regarded and SDKs are idiomatic. The main tradeoff is usage-based cost after the included allowances, while advanced fraud tooling can add separate usage charges. Device fingerprinting is a standout feature most auth providers lack.

— Community sentiment

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Alternatives to Stytch

Auth0

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Hosted identity with social login, SSO and extensible authentication flows.

Clerk

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Authentication and user management with polished prebuilt components.

Descope

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Visual authentication flows backed by APIs and SDKs for custom experiences.

ABOUT US

Honest, independent, no fluff.

No paid placements. Just a clear look at what this does, what it costs, and what to know before you commit.

FAQ

Questions, answered.

What makes Stytch different from Auth0 or Clerk?＋

Stytch leads with passwordless authentication and built-in fraud detection. Other providers add these as features whereas Stytch builds the product around them.

Does Stytch support enterprise SSO for B2B apps?＋

Yes, Stytch has a dedicated B2B product with SAML, OIDC SSO, directory sync and organization management.

How does Stytch's fraud detection work?＋

It uses device fingerprinting, behavioral signals and threat intelligence to flag suspicious logins, bot traffic and account takeover attempts in real time.