I will build claude ai chatbot and rag assistant with claude api for websites


Over deze dienst
Get a custom AI assistant on the Claude API that answers questions about YOUR business, from your own content. Not a generic bot.
Live demo: https://portfolio-claude-4xw.pages.dev/assistant/ (a sample physio clinic). Try it before you order.
What you get:
- Chat widget for any site (HTML, WordPress, Shopify, Webflow): one script tag
- - Knowledge from your pages, PDFs or FAQ (RAG), grounded in your content
- - Streaming replies, your brand colours, custom tone and guardrails
- - API key kept server-side (never in the browser), rate limiting
- - README + deploy guide, or I deploy it for you (Cloudflare/Vercel)
Fully asynchronous: written scope, progress updates, no calls needed.
You bring your content (URLs/PDFs) and an Anthropic API key in your name (pay-as-you-go; a small site usually costs a few dollars a month). Not sure it fits? Message me first. I reply within hours.
Maak kennis met Douglas
AI assistants on Claude, n8n automations and fast HTML pages
- Afkomstig uitPortugal
- Lid sindssep 2026
Talen
Portugees, Engels
Mijn portfolio
Veelgestelde vragen
Do I need to give you access to my website?
Not for the basic widget: you paste one script tag. If I deploy for you (Standard/Premium), I use a limited token or a temporary editor login you revoke after delivery. Everything runs in your own accounts and you own it all.
What API key do I need and what does it cost to run?
An Anthropic API key in your name (pay-as-you-go, no subscription). A typical small-business assistant on a fast Claude model costs a few dollars a month; hosting fits free tiers. I set spending limits and rate limiting so it cannot run away. I never keep your key.
Can it answer in other languages?
Yes. The assistant replies in the visitor's language by default (tested in English and Portuguese) and can be restricted to the languages you choose. Your knowledge sources can be in any language.
Where is it hosted and who owns the code?
In your own accounts: Cloudflare Workers or Vercel for the backend, your site for the widget. You receive the full source (Standard/Premium; extra on Basic) and a README, so any developer can maintain it. No lock-in to me.

