Every unreached SMS... is a lost customer.

Secure payments via:

Over 1,000,000+ successful verifications monthly

+1,250
Active Enterprise Clients
+15.4M
Successful OTP Verifications
-94%
Cost Reduction vs SMS
99.98%
Uptime & Delivery Speed

65% Cost Savings

Pay only for successful verifications. Cut operational expenses drastically.

SMS Cost$0.05 / Verify
ReOTP Cost$0.0008 / Verify
server.ts
import { ReOTP } from 'reotp-node';

const client = new ReOTP('YOUR_API_KEY');

// Trigger verification
await client.verify.send({
  phone: '+201000000000',
  channel: 'whatsapp'
});

En kolay API. 10 Dakika.

Integrate in under 10 minutes with just 3 lines of code.

5x Faster Than SMS

Grow your user base with instant verification.

0.8sDelivery Speed

One API. Endless Possibilities.

Whether you want to add an extra layer of security or remove passwords completely, ReOTP provides flexible integration models for every use case.

Mode 00 • Fastest & Recommended

Zero-Type Auth (Recommended)(Zero-Type Auth)

No typing required. One-click login and action verification, automatically authenticating the user's actual phone number.

Magic Workflow Steps:

1. Single ClickUser clicks login button
2. Instant AccessPhone Verified & Logged in

Goal

Zero friction and maximum user conversion rates.

Example

Modern apps and platforms wanting to double their sign-ups.

Read API Integration Guide
Mode 01 • Maximum Security

Standard 2FA(Standard 2FA)

Require users to confirm their phone number after entering a password to prevent unauthorized access.

Workflow Steps:

Step 1Enter Account Password
Step 2Send ReOTP Code
Step 3100% Secure Login

Goal

Maximum security for sensitive data.

Example

Banking applications, crypto wallets.

Read API Integration Guide
Mode 02 • Instant Login

Passwordless Lite(Passwordless Lite)

Users just enter their phone number and click a button. We handle the verification in the background.

Workflow Steps:

Step 1Enter Phone Number Only
Step 2Send ReOTP via App
Step 3Instant Passwordless Login

Goal

Frictionless login process.

Example

E-commerce apps, food delivery.

Read API Integration Guide
Mode 03 • Smart Cost Saver

Smart 2FA(Smart 2FA)

Trigger 2FA only when users log in from a new device, a new IP address, or perform a sensitive action.

Workflow Steps:

Step 1Initial ReOTP Verification
Step 2Bind Passkey Device
Step 3Free Biometric Login

Goal

Balance between security and convenience.

Example

SaaS platforms, social networks.

Read API Integration Guide
Mode 04 • Pure Passwordless

Pure Passwordless(Pure Passwordless)

A completely customized flow tailored to your needs using our low-level API endpoints.

Workflow Steps:

Step 1Initial ReOTP Device Sync
Step 21-Touch Biometric Login
Step 3Monthly 1-ReOTP Refresh

Goal

Absolute control over UX.

Example

Custom enterprise solutions.

Read API Integration Guide

No manual integration needed! Hand off ReOTP verification prompts directly to Cursor, Antigravity, Claude Code, Windsurf, or Bolt for instant zero-code setup.

CursorAntigravityClaude CodeWindsurfBoltv0
AI Agent Integration Handshake
AI-Ready
Step 1: Copy ReOTP Master Prompt

Includes API Key, OpenAPI Specs, & Endpoint contracts.

Step 2: Paste into Cursor / Antigravity / Bolt

"Integrate ReOTP authentication into my Next.js App..."

Step 3: Instant 10-Second Auth Setup! 🎉

No manual coding. AI Agent builds full logic & UI automatically.

Why Developers Prefer ReOTP Over Legacy SMS

Side-by-side real comparison between expensive SMS providers and ReOTP.

Actual Delivery Rate

Legacy SMS78% (Lost messages & carrier delays)
ReOTP99.8% (Instant guaranteed delivery)

Setup & Integration Time

Legacy SMSWeeks (Carrier approvals & paperwork)
ReOTP2 Minutes (API key & instant SDK)

Security & Fraud Protection

Legacy SMSVulnerable to SIM Swapping
ReOTP256-bit HMAC & Adaptive Security

Pricing Plans

Plans suitable for every project.

Global Reach & International Coverage

Multilingual Support

Native experience for users worldwide.

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Have Questions? Browse our FAQ

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