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Simple OTP

Adds passwordless authentication (OTP, magic links, passkeys) to websites.

A self-hosted authentication toolkit that adds passwordless login methods such as one-time passwords, magic sign-in links, and passkeys to websites, solving the problem of password-based authentication friction and security. It is designed for developers and engineering teams at startups and small to mid-sized companies who want to integrate authentication without relying on third-party services. The product is delivered as source code with a one-time payment, allowing deployment on the user's own servers, and includes SDKs for React, Vue, and core JavaScript.

Key features

  • Unlimited monthly active users
  • Unlimited sites with custom branding
  • Admin dashboard for user management
  • Free open-source frontend SDKs for React, Vue, JS
  • Send emails from custom domain
  • Passkeys (WebAuthn/FIDO2)
  • Magic sign-in link OTPs
  • Enter a code OTPs
  • Blacklisting and whitelisting
  • API access
  • Automated tests with full coverage for core APIs
  • Run on your own servers
Social posts
  • No social media activity within the last 30 days
GTM channels
  • Community
  • API
  • Docs
ICP
  • Software developers
  • Engineering teams
  • Startups