wa-number-checkerQuery whether a phone number is registered on WhatsApp. Use when the user asks to check if a number has WhatsApp, verify if a number exists on WhatsApp, "查这个...
Install via ClawdBot CLI:
clawdbot install zhuqling/wa-number-checkerGrade Limited — based on market validation, documentation quality, package completeness, maintenance status, and authenticity signals.
Accesses sensitive credential files or environment variables
process.env.API_KEYCalls external URL not in known-safe list
https://wa-check-api.whatsabot.com`.AI Analysis
The skill sends phone numbers to an external third-party API (wa-check-api.whatsabot.com) not controlled by the user or the primary assistant provider, which is a privacy risk. While the skill's purpose is clear and no credential harvesting or obfuscation is evident, the external data transmission to an undocumented/unvetted service warrants caution.
Audited Apr 17, 2026 · audit v1.0
Generated Mar 21, 2026
Businesses use this skill to verify customer phone numbers before sending WhatsApp messages for support or notifications, ensuring messages reach valid contacts and reducing bounce rates. It helps streamline communication channels by confirming active WhatsApp users.
Sales teams check if prospect phone numbers are registered on WhatsApp to prioritize outreach via a popular messaging platform, improving engagement rates and efficiency in lead nurturing campaigns.
Mobile apps integrate this skill during sign-up to verify if users have WhatsApp, enabling features like social login or messaging integration, enhancing user experience and reducing fake accounts.
Financial institutions use it to validate phone numbers as part of KYC processes, ensuring contact details are active on WhatsApp for secure communication and reducing fraud risks in transactions.
Offer the WhatsApp number checking functionality via a subscription-based API, charging per query or through tiered plans. This model targets developers and businesses needing scalable verification tools.
Bundle the skill into customer relationship management software as an add-on feature, allowing businesses to verify contacts directly within their CRM workflows for a seamless experience.
Provide the technology to other companies to rebrand and resell under their own name, targeting agencies or large enterprises looking to offer verification services without developing from scratch.
💬 Integration Tip
Ensure API keys are securely stored and handle errors gracefully by checking for invalid formats or rate limits to maintain service reliability.
Scored Apr 19, 2026
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