Stytch
Auth & Identity Free tier (card may be required)
Documentation: stytch.com ยท Checked Sep 13, 2026
About
Stytch is an authentication API built around passwordless login: email magic links, one-time passcodes, OAuth, and WebAuthn passkeys. The free plan covers 10,000 B2C or B2B active users, unlimited B2B organizations, five SSO and SCIM connections, 10,000 device fingerprints, and 1,000 machine tokens. Its REST API uses your project ID and secret with HTTP Basic auth, and official SDKs cover every major platform. It is ideal if you want modern login without building it yourself.
Details
Free tier, but a card may be required to sign up.
Auth: Free tier (card may be required)
Rate limit: Free: 10,000 active users, unlimited B2B organizations, 5 SSO/SCIM connections; standard per-endpoint rate limits.
Verified: 2026-09-13
Best for: passwordless login passkeys B2B auth
Setup
- Create a free Stytch account and get your project ID and secret.
- Choose the login methods you want, such as magic links or passkeys.
- Install the Stytch SDK for your platform.
- Send a login request to start an authentication flow.
- Verify the session token on your backend.
curl https://api.stytch.com/v1/users/user-test-123 -u "PROJECT_ID:SECRET"Use cases
- Add magic-link or passcode login without passwords.
- Ship passkey login for web and mobile apps.
- Manage B2B customers with SSO and directory sync.