CheckNumber API - Phone Number Verification & Validation Service
CheckNumber API Documentation
Welcome to CheckNumber API - the leading phone number verification and validation service for developers and businesses.
What is CheckNumber?
CheckNumber provides advanced phone number verification APIs that help you validate and verify phone numbers across multiple platforms including:
- WhatsApp Number Checker - Verify WhatsApp accounts in real-time and bulk
- Social Media Verification - Instagram, Facebook, Twitter, LinkedIn
- Messaging Platform Validation - Telegram, Zalo, Viber, Line, iMessage
- Cryptocurrency Exchange - Binance account verification
- Email & Account Validation - Netflix, Apple, Amazon, Facebook
Our professional APIs provide robust communication and number verification solutions, helping you enhance your applications with powerful phone number detection capabilities.
Key Benefits
✅ Fast & Reliable - Quick response times and high uptime ✅ Bulk Operations - Process thousands of numbers simultaneously ✅ Multi-Platform - Verify across 15+ different platforms ✅ Accurate Results - Advanced verification algorithms ✅ Developer Friendly - Simple REST API integration ✅ Cost Effective - Flexible pricing for all business sizes
You can use the document categories below, the left navigation bar, or the search function to find the specific API interface information you need. Each section provides detailed guides, request examples, and response schemas to facilitate seamless integration.
1. WhatsApp API Documentation
Our WhatsApp APIs allow you to verify and analyze WhatsApp numbers and business accounts, providing valuable insights for your applications.
- WhatsApp Realtime Checker: Perform real-time checks for WhatsApp activity.
- WhatsApp Bulk Real-time Number Checker: Service based on short-term cache and real-time detection. Efficiently verify large volumes of phone numbers for WhatsApp activity.
- WhatsApp Bulk Number Checker Avatar (Age and Gender): Perform avatar analysis including age and gender detection for bulk numbers.
- WhatsApp Days Checker: Detect WhatsApp account activity duration, business account status, and signature information.
2. Social Media Platform Bulk Checkers
We also provide bulk verification for popular social media platforms.
- Twitter Bulk Number Checker: Verify Twitter accounts in bulk using unified API.
- Instagram Bulk Number Checker: Verify Instagram accounts in bulk.
- Facebook Bulk Number Checker: Verify Facebook accounts in bulk.
- LinkedIn Bulk Number Checker: Verify LinkedIn accounts in bulk.
3. Messaging Platform Bulk Checkers
Verify phone numbers across popular messaging platforms.
- Telegram Bulk Number Checker: Check for Telegram accounts in bulk.
- Zalo Bulk Number Checker: Verify Zalo accounts in bulk.
- Viber Bulk Number Checker: Check for Viber accounts in bulk.
- Line Bulk Number Checker: Verify Line accounts in bulk.
- iMessage Bulk Number Checker: Check for iMessage accounts in bulk.
4. Cryptocurrency Exchange Bulk Checkers
Verify phone numbers for cryptocurrency exchange platforms.
- Binance Bulk Number Checker: Check for Binance accounts in bulk.
5. Other Services
Additional verification services for various platforms.
- Netflix Bulk Email Checker: Check for Netflix accounts with email addresses in bulk.
- Apple Bulk Number Checker: Verify Apple accounts in bulk.
- Amazon Bulk Number Checker: Check for Amazon accounts in bulk.