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Clerk Authentication SDK

Authentication and user management SDK with environment variable configuration for sign-in flows, API keys, and framework integrations.

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Field note

What it does

Clerk SDK provides environment variables to configure sign-in/sign-up redirects, publishable/secret keys, satellite domains, webhooks, and telemetry across meta-frameworks like Next.js and Vite.

Capabilities

Available capabilities

Webhook NotificationsSign-in and sign-up redirectsTelemetryEnvironment variable configurationPublishable and Secret key managementSatellite domains

Tags

Tags

AuthenticationViteNext.js

Ways to use it

Ways to use it

sdk

javascript / @clerk/nextjs

sdk

javascript / @clerk/clerk-react

cli

javascript / clerk

Product features

Product features

Domain restrictions for passkeys

Email

Passkey limitations

Passkeys

Password

Phone

Restrict changes

Sign-up and sign-in options

SMS allowlist

User & authentication

User model

Username