An AI-powered customer support assistant, available both on the website and directly on WhatsApp, able to answer common questions about services, projects, and contact details — around the clock, without depending on someone being online.
The challenge
Visitors to a professional services website tend to arrive with very similar questions: what kind of projects are handled, whether the business works with international clients, how to get in touch. Real-time human support isn't always possible, and commercial chatbot platforms usually come with monthly fees sized for volumes a small business doesn't need.
The solution
A lightweight, custom-built assistant connected directly to the Anthropic API (Claude), with two entry points:
- Web widget — built directly into the page, with human verification (Cloudflare Turnstile) before enabling the chat, to filter out bots.
- WhatsApp Business API — the same assistant, accessible directly from WhatsApp, with conversation history and context-aware replies.
Both channels share the same backend and business context, so the experience stays consistent regardless of where the visitor comes from.
Technical stack
- Django backend, with dedicated apps for the web chat and the WhatsApp bot
- Claude API (Anthropic) for generating responses
- WhatsApp Business Platform (Cloud API) for the messaging integration
- Cloudflare Turnstile for bot protection on the web channel
- Per-session and per-IP message limits, plus a monthly API spend cap
Outcome
A system with a running cost of fractions of a cent per conversation, no platform monthly fees, and fully adaptable tone and context for each business.
Interested in something similar for your business? — or try it yourself with the help button on this very site.