Skip to main content
To create a new account or login to your existing one, visit your dashboard.
To learn more about Prelude, our offerings and pricing, visit our website at prelude.so.

Documentation

Prelude offers a suite of powerful and easy-to-use APIs to help you build your onboarding and trust processes. You can find the documentation for each different product in the following sections.

Verify

Verify phone numbers and emails worldwide using the most appropriate channel depending on your user’s context.

Notify

Effortlessly create, customize, and send global transactional and marketing messages.

Lookup

Retrieve detailed information about phone numbers including carrier data, line type, and portability status.

Session (Beta)

Manage the full lifecycle of your users’ sessions with Prelude’s secure and scalable session management system.

Watch (Beta)

Protect your business and users from fraud by analyzing in real-time dozens of digital signals to block suspicious users.

Core concepts

Understand what makes Prelude unique.

Multi-routing and multi-channel delivery

Compare all available routes in realtime to find the best one for each individual user.

Anti-fraud

Only let real users through thanks to a state-of-the-art fraud prevention system.
Can’t find what you’re looking for? Tell us