Stytch

API

Modern user authentication & infrastructure API

Overview

Stytch provides RESTful endpoints for passwordless authentication (magic links, SMS/email OTPs), session management, multi-factor authentication (MFA), single sign-on (SSO), and user profile management. Responses are JSON-formatted. Use cases include building secure passwordless login flows for web/mobile apps, adding MFA for enhanced security, implementing SSO with popular IdPs (e.g., Google, Okta), and managing user sessions to reduce fraud. It eliminates auth backend complexity, enabling compliance with GDPR/HIPAA while letting developers focus on core app features.

Example Integration (JavaScript)

script.js JS


fetch('https://stytch.com/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON response format
Passwordless auth endpoints
Session management
MFA & SSO integration
GDPR/HIPAA compliant

Frequently Asked Questions

? Is Stytch free to use?

Yes, Stytch offers a free tier with limited monthly active users (MAUs) and core features. Paid plans unlock higher MAUs, advanced tools like SSO, and priority support.

? Does it require an API Key?

Yes, Stytch requires an API key for authentication. You can generate it from the Stytch dashboard after signing up for an account.

? What is the response format?

All Stytch API responses are in JSON format, which is widely supported and easy to integrate into modern web and mobile applications.

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Tool Info

Pricing Freemium

Category Authentication & Authorization

Platform Public API

Pros

⊕ Easy integration with web/mobile SDKs
⊕ Reduces auth infrastructure overhead
⊕ Supports multiple secure auth methods
⊕ Scalable for growing user bases

Cons

⊖ Free tier has MAU limits
⊖ No self-hosted option
⊖ Advanced features require paid plans
⊖ Rate limits apply to free usage