Connecting Your AI Chatbot to WhatsApp Business

Does ChatNexus support WhatsApp Business API?

Direct answer: Yes. ChatNexus integrates with WhatsApp Business API via encrypted webhooks. Your AI agent receives messages from WhatsApp, searches your knowledge base, and sends responses back in real-time.

This feature is available as an opt-in beta. To enable it, go to your agent → Integrations → WhatsApp and follow the authorization flow. You'll need a WhatsApp Business Account with API access.

How are WhatsApp credentials stored?

Direct answer: WhatsApp API keys and tokens are encrypted at rest using Laravel's <code>Crypt::encryptString()</code> (AES-256). Only your agent can decrypt them. ChatNexus never stores plaintext credentials.

The encryption key is managed by Laravel's environment configuration (APP_KEY). Even if the database is compromised, an attacker cannot decrypt your WhatsApp credentials without the application key.

Can I use the same knowledge base for WhatsApp and my website widget?

Direct answer: Yes. ChatNexus stores all RAG data in your Neon PostgreSQL database with pgvector. Any channel (website, WhatsApp, API) connected to the same agent shares the same knowledge base.

When you update a Google Doc or upload a PDF, the changes are indexed once and available to all channels simultaneously. This ensures consistent responses across WhatsApp, your website widget, and any other integration.

Is the WhatsApp integration compliant with data privacy laws?

Direct answer: ChatNexus follows GDPR, CCPA, and other privacy regulations. Data is encrypted in transit and at rest. You control data retention policies and can delete conversations on demand.

Messages are stored temporarily to maintain conversation context but can be purged after a configurable retention period (default: 90 days). Users can request data deletion via your privacy policy, and ChatNexus supports these requests via the dashboard.

How fast are responses on WhatsApp?

Direct answer: Responses stream in real-time via Server-Sent Events. Typically, the first token appears within 1-2 seconds after the user sends a message.

The end-to-end flow is: WhatsApp API → ChatNexus webhook → knowledge base search → LLM streaming → WhatsApp message send. Network latency and knowledge base size may add delays, but modern deployments target sub-3-second first-token time.

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