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Validate demand before building. Launch beta waitlists with referral tracking, send broadcast updates to your list, and use the API to automate onboarding when you're ready.

Amplify launch reach with unique referral links and position-based leaderboards. Track every signup source with UTM analytics. Create urgency with limited-access drops and giveaways.

Prioritize users by referral count, signup date, or position. Track demand with analytics breakdowns. Send targeted broadcasts to keep your waitlist engaged before launch.

Full REST API with key-based auth and configurable rate limits. Webhook automation for 8 event types. Custom domains with auto-SSL. Build any signup flow you want.