Full contact data validation eliminates inaccurate lead information for global B2B prospecting. Run multi-dimensional phone checks to distinguish valid/invalidnumbers, landlines, mobile lines and WhatsApp registered accounts. Complete email authentication to flag active and dormant mailboxes, alongside domainvalidation to confirm functional or defunct business websites. Streamline email validation, phone validation and domain verification workflows for sales teams,recruiters and export businesses. Cut email bounce rates drastically and boost efficiency for B2B cold outreach and global prospect search. Execute professionalCRM data cleansing, candidate screening and supplier lead validation via all-in-one verification features. Perfect for bulk export email pre-sending datacleaning, talent recruitment screening and overseas buyer identity verification.

Verify phone numbers, WhatsApp status, emails and website domains. Cut email bounce rates through CRM data cleansing. Help exporters and recruiters clean contact lists before cold‑email sending and buyer verification. Trigger: email validation, phone number checker, WhatsApp status verify, domain verification, CRM data cleansing, email list scrubbing, reduce email bounce rate

UpKuaJing Contact Info Validity Check

Check the validity of contact information using the UpKuaJing Open Platform API. This skill provides three detection interfaces: phone validity, email validity, and domain validity.

Overview

This skill provides access to UpKuaJing's contact validity detection through:

• Phone Validity Check (phone_validity_check.py): Check phone number validity, type, and WhatsApp status
• Email Validity Check (email_validity_check.py): Check email address validity
• Domain Validity Check (domain_validity_check.py): Check domain validity and security

Running Scripts

Environment Setup

1. Check Python: python --version
2. Install dependencies: pip install -r requirements.txt

Script directory: scripts/*.py Run example: python scripts/*.py

Important: Always use direct script invocation like python scripts/phone_validity_check.py. Do NOT use shell compound commands like cd scripts && python phone_validity_check.py.

Three Detection APIs

Phone Validity Check (phone_validity_check.py)

Check phone number validity, type, and WhatsApp status.

Parameters: See Phone Validity API

Examples:

bash

# Check single phone number
python scripts/phone_validity_check.py --phones "[phone]"

# Check multiple phone numbers
python scripts/phone_validity_check.py --phones "[phone] [phone] [phone]"

Email Validity Check (email_validity_check.py)

Check email address validity.

Parameters: See Email Validity API

Examples:

bash

# Check single email
python scripts/email_validity_check.py --emails "[e-mail]"

# Check multiple emails
python scripts/email_validity_check.py --emails "[e-mail] [e-mail] invalid-email"

Domain Validity Check (domain_validity_check.py)

Check domain validity and security status.

Parameters: See Domain Validity API

Examples:

bash

# Check single domain
python scripts/domain_validity_check.py --domains "google.com"

# Check multiple domains
python scripts/domain_validity_check.py --domains "google.com fake-domain-xyz123456.com github.com"

API Key and UpKuaJing Account

• API Key: Stored in ~/.upkuajing/.env file as UPKUAJING_API_KEY
• First check: If not set, prompt user to provide or apply at UpKuaJing Open Platform

API Key Not Set

First check if the ~/.upkuajing/.env file has UPKUAJING_API_KEY; If UPKUAJING_API_KEY is not set, prompt the user to choose:

1. User has one: User provides it (manually add to ~/.upkuajing/.env file)
2. User doesn't have one: Guide user to apply at UpKuaJing Open Platform Wait for user selection;

Account Top-up

When API response indicates insufficient balance, explain and guide user to top up:

1. Create top-up order (auth.py --new_rec_order)
2. Based on order response, send payment page URL to user, guide user to open URL and pay, user confirms after successful payment;

Get Account Information

Use this script to get account information for UPKUAJING_API_KEY: auth.py --account_info

Fees

All validity check API calls incur fees. Latest pricing: Users can visit Detailed Price Description Or use: python scripts/auth.py --price_info (returns complete pricing for all interfaces)

Fee Confirmation Principle

Any operation that incurs fees must first inform and wait for explicit user confirmation. Do not execute in the same message as the notification.

Workflow

Decision Guide

User Intent	Use API
"Check if phone number is valid"	Phone Validity Check
"Verify email address exists"	Email Validity Check
"Check if domain is safe"	Domain Validity Check

Error Handling

• API key invalid/non-existent: Check UPKUAJING_API_KEY in ~/.upkuajing/.env file
• Insufficient balance: Guide user to top up
• Invalid parameters: Must first check the corresponding API documentation in references/ directory, get correct parameter names and formats from documentation, do not guess

API Documentation Reference

• Phone Validity: Check references/phone-api.md
• Email Validity: Check references/email-api.md
• Domain Validity: Check references/domain-api.md

Notes

• File paths use forward slashes on all platforms
• Do not guess parameter names, get accurate parameter names and formats from documentation
• Prohibit outputting technical parameter format: Do not display code-style parameters in responses, convert to natural language
• Do not estimate or guess fees — use python scripts/auth.py --price_info to get accurate pricing information

Related Skills

Other UpKuaJing skills you might find useful:

• linkedin-person-search — Search people from the LinkedIn source
• global-company-person-search — Search people from the global company database
• linkedin-company-search — Search companies from the LinkedIn source
• global-company-search — Search companies from the global company database
• global-company-shareholder — Query shareholder list from the global company database
• global-company-employee — Query employee list from the global company database
• global-company-person-colleague — Query colleague list from the global company database
• global-company-person-alumni — Query alumni list from the global company database
• global-company-person-experience — Query work experience list from the global company database
• global-company-person-education — Query education history list from the global company database
• global-company-person-school-detail — Query school detail from the global company database
• upkuajing-global-company-people-search — Global company and people search
• upkuajing-customs-trade-company-search — Search customs trade companies
• upkuajing-map-merchants-search — Map-based merchant search
• upkuajing-email-tool — Send emails and manage email tasks
• upkuajing-sms-tool — Send SMS and manage SMS tasks
• upkuajing-contact-info-validity-check — Check contact info validity
• phone-validity-check — Check phone number validity
• email-validity-check — Check email address validity
• domain-validity-check — Check domain validity and security