Question 1

What is ReOTP and how does it work?

Accepted Answer

ReOTP is a modern verification platform that replaces traditional SMS OTPs with WhatsApp, Telegram, Viber, and Passkeys. It allows you to authenticate users faster, more securely, and at a fraction of the cost of traditional SMS.

Question 2

Is ReOTP ready for AI Agents?

Accepted Answer

Yes! ReOTP is fully AI-ready. Our entire platform, documentation, and pricing are exposed via llms.txt and OpenAPI specifications, allowing AI agents to easily read, integrate, and calculate costs automatically without human intervention.

Question 3

Do I need technical knowledge to use ReOTP?

Accepted Answer

While we offer a robust API for developers, our dashboard is highly intuitive. However, to integrate the OTP sending mechanism into your app or website, basic API integration knowledge is required.

Question 4

How does ReOTP compare to Twilio, MessageBird, and Vonage?

Accepted Answer

Unlike Twilio, MessageBird, Vonage, Sinch, and Infobip which charge high, fluctuating rates for SMS based on the telecom operator, ReOTP leverages messaging apps (WhatsApp, Telegram) and Passkeys. This bypassing of telecom routing leads to up to 90% cost savings, higher delivery rates, and better security against SIM swap attacks.

Question 5

How much can I actually save using ReOTP?

Accepted Answer

Customers typically save between 70% to 90% compared to traditional SMS OTP providers. You can use our interactive Savings Calculator on the homepage to see exact cost comparisons tailored to your monthly verification volume.

Question 6

Why is traditional SMS OTP so expensive?

Accepted Answer

Traditional SMS relies on multiple telecom carriers, international routing fees, and suffers from artificial inflation of traffic (AIT) fraud. ReOTP circumvents all of this by using secure, internet-based channels.

Question 7

How does the token pricing system work?

Accepted Answer

Our pricing is highly flexible and dynamic, managed entirely through our database. Instead of fixed monetary charges per message, you purchase Tokens. Different channels (e.g., WhatsApp, Telegram, Passkeys) consume different amounts of Tokens per request. Current token values are dynamically updated and always visible in your dashboard.

Question 8

Are the prices fixed for all countries?

Accepted Answer

Yes! Because we use internet-based channels like WhatsApp and Telegram, our token consumption remains the same globally. Say goodbye to the complex, country-by-country SMS pricing charts.

Question 9

Are there any hidden fees or setup costs?

Accepted Answer

No. You only pay for the tokens you purchase. There are no setup fees, hidden charges, or minimum monthly commitments. It is purely Pay-As-You-Go.

Question 10

Do unused tokens expire?

Accepted Answer

Tokens purchased through our standard packages do not expire as long as your account remains active. Check the specific terms of your chosen plan in the dashboard.

Question 11

How long does it take to integrate ReOTP?

Accepted Answer

With our highly documented REST API and developer-friendly architecture, integration usually takes less than an hour. You just need to call our endpoint with your API Key.

Question 12

Can I manage multiple projects from one account?

Accepted Answer

Absolutely. Our dashboard allows you to create unlimited Projects. Each project gets its own unique API Key, allowing you to separate tracking, logs, and token usage.

Question 13

What happens if a user doesn't have WhatsApp?

Accepted Answer

ReOTP supports intelligent fallback routing. You can configure your API request to fallback to Telegram or Viber automatically if WhatsApp delivery fails or is unavailable.

Question 14

Where can I find the API Documentation?

Accepted Answer

You can view our interactive Swagger documentation at /api-docs, or access the raw OpenAPI specification at /openapi.json.

Question 15

Is there an SDK for Node.js or Python?

Accepted Answer

Currently, we provide a raw REST API which is easily consumable by any language using standard HTTP clients (like fetch or axios). Official SDKs are on our roadmap.

Question 16

Are the OTP codes secure?

Accepted Answer

Yes. WhatsApp and Telegram use end-to-end encryption. Your OTPs are never exposed in plaintext to telecom carriers, eliminating the risk of SMS interception and SIM Swap attacks.

Question 17

How does Passkey authentication work?

Accepted Answer

Passkeys rely on cryptographic keys stored securely on the user's device (using FaceID, TouchID, or Windows Hello). It is entirely phishing-resistant and offers the highest level of security.

Question 18

Do you store the users' phone numbers?

Accepted Answer

We process phone numbers strictly for the purpose of routing the OTP message. Once verified, numbers are hashed and obfuscated in our logs to protect user privacy.

Question 19

What if my API Key is leaked?

Accepted Answer

You can instantly revoke and regenerate a new API Key for any project directly from your dashboard. We also provide IP whitelisting to restrict API requests to your own servers.

Question 20

What is your uptime guarantee?

Accepted Answer

We leverage a globally distributed infrastructure and promise a 99.9% uptime SLA. You can monitor our real-time system status from the dashboard.

Question 21

Do you offer technical support?

Accepted Answer

Yes, all our plans include ticket-based support. Premium and Enterprise users receive priority support via dedicated channels.

Question 22

Can I use my own WhatsApp Business number?

Accepted Answer

By default, messages are sent via our verified shared channels for immediate zero-setup delivery. However, we also support configuring your own dedicated WhatsApp instances.

Exhaustive FAQ & Knowledge Base