What is Prelude?
Prelude is your go-to OTP & SMS verification API, built to help developers send secure, cost-effective verification messages worldwide. With top-tier deliverability, anti-fraud protection, and competitive pricing, it’s designed to streamline user onboarding while cutting costs.
What are the features of Prelude?
- Global Reach: Send messages in 230+ countries across 5 channels (SMS, WhatsApp, Viber, etc.).
- Smart Routing: Automatically picks the cheapest, fastest route for delivery.
- Fraud Prevention: Blocks 99% of spam with AI-powered detection.
- Real-Time Analytics: Track conversions, costs, and performance effortlessly.
- Easy Integration: Minimalist API with multi-language SDKs for quick setup.
What are the use cases of Prelude?
- Fintech Apps: Secure onboarding with OTP verifications.
- Dating/Social Platforms: Stop fake accounts with phone checks.
- B2B Software: Verify users without delays or spam risks.
- Startups/Scale-ups: Grow globally without authentication headaches.
How to use Prelude?
- Sign up for a free Prelude account.
- Grab your API token from the dashboard.
- Use the 2 simple endpoints to send verifications:
curl -s 'https://api.prelude.dev/v2/verification' \
--header 'Authorization: Bearer <YOUR_TOKEN>' \
--data '{"target":{"type":"phone_number","value":"<YOUR_PHONE_NUMBER>"}}'





