WhatsApp Authentication

WhatsApp Authentication Messages allow businesses to securely verify users by sending one-time passwords (OTPs) or verification codes directly to their WhatsApp number, and with the Skynyx third-party API, creating and delivering these messages is fast, secure, and reliable. Our API lets you generate authentication messages by defining parameters such as the recipient’s mobile number, approved authentication template, sender ID, language code, and dynamic values like OTPs or verification tokens, ensuring full compliance with WhatsApp policies. This solution is ideal for login verification, account registration, password resets, and transaction validation, and can be seamlessly integrated into web applications, mobile apps, backend services, or automated workflows for a smooth and secure user authentication experience.

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WhatsApp Authentication
Comparison

Built for Developers: Us vs Other APIs

FeatureUs Other APIs
Credit-Based Pricing Yes Limited or confusing
Transparent Billing Yes Surprise charges
Dev-Focused Docs Yes Sparse examples
Free Credits Yes Paywall from day 1
Fast Support Yes 3+ day wait time
Quick Start

Try It Out

This example will sign your document with a Nutrient certificate.

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Add a File

Add a PDF named document. pdf to your project folder. You can use our sample document.

Run the Code

Copy the code and run it from the same folder you added the files to. For more information, see our language-specific getting started guides.

View the Results

Open result.pdf in your project folder to view the results.

  • HTTP
  • SHELL
  • SHELLWINDOW
  • JAVA
  • JAVA SCRIPT
  • C#
  • PYTHON
  • PHP
POST /v1/whatsapp HTTP/1.1
Host: api.skynyx.dev
Content-Type: application/json

{
  "api_key": "xxxxx",
  "mobile_no": "your_10_digit_numeric_mobile_number",
  "template_name": "xxx",
  "sender_id": "xxxx",
  "type": "Authentication",
  "language_code": "xxxxx",
  "otp": "xxxxx"
}