UpKuaJing contact validity check, verify phone numbers, email addresses, and domains for B2B lead qualification. UpKuaJing helps sales teams, recruiters, and traders validate contact data, reduce bounced emails, and improve outreach efficiency — essential for CRM data cleaning, candidate screening, and supplier verification.

Official skill for upkuajing (跨境魔方). Check the validity of contact information including phone numbers, email addresses, and domains. Returns status, type, a...

This skill appears to do what it says: validate phones, emails, and domains via UpKuaJing and requires only the UPKUAJING_API_KEY and Python. Before installing, consider: (1) API billing — all checks incur fees and the scripts may create payment orders or prompt you to top up; confirm you understand costs before confirming any fee-incurring action. (2) Persistence — the tool will read/write ~/.upkuajing/.env and a version cache under ~/.upkuajing; if you use the built-in 'apply for key' flow it will save a key to that file. (3) Logging — the code can log request/response bodies to ~/.upkuajing/logs if ENABLE_API_LOGGING is turned on; these logs could contain sensitive contact lists, so keep logging disabled or protect that directory. (4) Network activity — the client makes calls to openapi.upkuajing.com for validation and also performs a daily version check (posts skill name) on first API call. If you need more assurance, inspect the code yourself or run the scripts in a restricted environment, and avoid enabling logging if you plan to validate private contact data.

Type: OpenClaw Skill Name: upkuajing-contact-info-validity-check Version: 1.0.0 The skill bundle provides legitimate contact information validation services (phone, email, domain) via the UpKuaJing API. It manages its own API keys and configuration within a dedicated local directory (~/.upkuajing) and includes safety instructions in SKILL.md requiring user confirmation before performing fee-incurring operations. The code in common.py even demonstrates security awareness by implementing UUID-based path traversal protection for task data management.