1. Pre-fetch Links in Background (Zero-Delay)

Secretly pre-fetch verification links with zero delay before the user clicks login.

ReOTP is designed to deliver a "Zero-Type Auth" experience. Simply request the verification links and we will magically capture the user's phone number directly from their message!

Request Body Parameters:

apiKey (string - Required): Your project's API Key.

phoneNumber (string - Optional): The user's phone number. If omitted, we will automatically capture it from the sender.

method (string - Required): Must be "WHATSAPP" or "TELEGRAM".

returnUrl (string - Optional): Redirect URL for Telegram bot completion.

Response Body Parameters:

requestId (string): Unique identifier for the verification session.

UI Best Practices: We highly recommend displaying a countdown timer in your UI to guide the user to complete the verification before it times out.

Send a POST request to the endpoint shown in the code panel to initialize the session.

Integration Code (SDKs)

curl -X POST https://[your-domain.com]/api/verify/init \
  -H "Content-Type: application/json" \
  -d '{
    "apiKey": "YOUR_API_KEY",
    "method": "WHATSAPP"
  }'

Interactive Playground

Interactive API Test Platform

Enter phone number to initialize the session and test server response instantly:

Interactive Live API Playground

Test verification requests live and generate integration code in your preferred programming language.

Your API Key

Test Phone Number

Verification Method

curl -X POST https://reotp.com/api/verify/init \
  -H "Authorization: Bearer 15a1c1c7-ed05-40df-b7c3-69c327542a07" \
  -H "Content-Type: application/json" \
  -d '{
    "phoneNumber": "201000000000",
    "method": "WHATSAPP"
  }'

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