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Documentation Index

Fetch the complete documentation index at: https://docs.prelude.so/llms.txt

Use this file to discover all available pages before exploring further.

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Overview

Prelude Auth is a complete authentication API for developer teams. With this API, you can manage users, handle authentication across multiple methods, track active sessions, and maintain user profiles, all through a simple and secure REST interface.
To enable Prelude Auth on your account, contact us.

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Key Features

  • OTP Login: Authenticate users via SMS or email one-time password
  • Password Authentication: Email and password login with configurable rules
  • Social Login OAuth with Google, Apple, Microsoft, GitHub, and Okta
  • Step-Up Authentication Add scoped, multi-step challenges for sensitive operations
  • Session Tracking: Monitor active sessions with creation and last-seen timestamps
  • User Management Create, retrieve, update, and delete users with unique identifiers
  • Identity Verification: Associate email addresses and phone numbers with user accounts
  • Profile Management: Store and update user profile information
  • Webhook Integration: Configure event notifications for real-time updates
Prelude Auth helps you build robust authentication systems while offloading the complexity of session management, allowing you to focus on creating great user experiences.

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Why choose Prelude Auth?

  • One platform, zero data silos Prelude handles both verification and authentication, so user data carries over seamlessly. Stronger fraud signals, fewer false positives, and full visibility across the onboarding flow.
  • Flexible step-up authentication Trigger scoped challenges only when needed, for sensitive operations like password changes or high-risk transactions, without disrupting the user journey.
  • Pay for what you use Customers have saved more than 50% vs. their previous provider by paying only for the features they actually need.

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Get started

Follow the Integration Guide to set up your first authentication flow in minutes.