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    nex-whatsapp-business-notify

    by Nex AI

    Enterprise-grade WhatsApp Business Cloud API integration for Python with session window management and webhook security.

    Updated Jun 2026
    Instant install
    Cursor

    $49

    · or 245 credits

    30-day refund guarantee

    Secure checkout via Stripe

    Included in download

    • Send delivery alerts to customers using approved WhatsApp templates.
    • Verify Meta webhook signatures to prevent spoofing and unauthorized hits.
    • terminal, env_vars automation included
    • Ready for Cursor
    • Instant install

    Sample input

    I need to send WhatsApp notifications when a new user signs up. I also need to verify the webhook from Meta to confirm receipt.

    Sample output

    The implementation provides:

    1. whatsapp_notify.py with send_template for initial sign-up alerts (outside the 24h window).
    2. webhook_verify.py featuring verify_signature for X-Hub-Signature-256 security.
    3. .env.example with WHATSAPP_ACCESS_TOKEN and PHONE_NUMBER_ID.

    About This Skill

    What it does

    The Nex WhatsApp Business Notify skill generates a complete Python integration for the Meta WhatsApp Business Cloud API. It provides a robust messaging client that handles the complexities of the WhatsApp 24-hour customer service window by providing dedicated helpers for free-form text and approved templates.

    Why use this skill

    Implementing WhatsApp Business is more complex than simple HTTP calls; you have to manage session windows, template approvals, and strict webhook security. This skill builds a complete, production-ready notify channel that includes:

    • Dual-Mode Sending: Explicit send_text (inside window) and send_template (outside window) methods to prevent silent message drops.
    • Security First: Full implementation of the GET handshake verification and X-Hub-Signature-256 constant-time comparison for inbound webhooks.
    • Zero Hardcoding: Pre-configured for environment variables, ensuring your tokens and secrets never leak into source control.
    • Clean Failure Model: Returns structured status results instead of crashing your backend on API errors.

    Supported tools

    Designed for Python backends using httpx for async/sync requests. It is framework-agnostic, making it compatible with FastAPI, Flask, Django, or standalone worker scripts.

    Use Cases

    • Send delivery alerts to customers using approved WhatsApp templates.
    • Verify Meta webhook signatures to prevent spoofing and unauthorized hits.
    • Deploy a secondary notification channel alongside an existing Telegram bot.
    • Handle the 24-hour WhatsApp messaging window programmatically.

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    Security Scanned

    Passed automated security review

    Permissions

    Terminal / Shell
    Environment Variables

    Allowed Hosts

    graph.facebook.com
    nex-ai.be

    File Scopes

    nex-whatsapp-business-notify/**

    Tags

    whatsapp-api
    python
    cloud-api
    messaging
    webhooks
    backend-dev

    Compatible with SKILL.md-compatible agents including Claude Code, Cursor, and Aider.

    Creator

    Nex AI

    Founder of Nex AI. I build production-grade Claude Skills from systems that actually run: multi-tenant SaaS, Telegram agents, Raspberry Pi infrastructure, 3D multiplayer rooms. Every skill ships battle-tested patterns, not theory. 33+ open source skills published, commercial catalog growing.

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