I will build a knowledge base chatbot and api backend on cloudflare workers


About this gig
Want an assistant that answers from YOUR content on your own site or app - running on your terms, for pennies instead of a $99/mo SaaS lock-in?
I build knowledge-base assistants and the API backends behind them on Cloudflare Workers - fast, serverless, cheap to run (free tier covers most small sites).
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WHAT YOU GET
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- A chat assistant embedded on your site, or an API your app calls
- Answers drawn from YOUR data - FAQ, docs, product info (Standard+)
- Runs on Cloudflare Workers: fast worldwide, scales to zero when idle
- Your own API key and provider - you choose it, you own it all
- Hardened security: rate limiting, CORS, abuse protection - your key never reaches the browser (Premium)
- Clean README + walkthrough video included
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WHY ME
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I run this stack myself - a secure Worker proxy with a layered defense setup (secrets, HMAC tokens, per-IP limits). You get hardened architecture, not a leaky demo exposing your API key.
Same build discipline as my geospatial data pipelines: versioned schemas, reproducible scripts, documented sources.
Message me what it should do.
Get to know Jiaming
GIS Survey Data Engineer and Python, ArcGIS, Land Parcel and Field Data
- FromChina
- Member sinceJul 2026
Languages
Chinese, English
My Portfolio
Other Software Development Services I Offer
FAQ
Will my API key be safe? I have seen bots leak keys in the browser.
That is the #1 mistake I prevent. Your key lives only in the Cloudflare Worker (encrypted secret), never in the frontend. I add rate limiting and abuse protection so nobody can run up your bill.
Can it answer from my own documents or FAQ?
Yes - Standard and Premium feed your content into the assistant so it answers accurately about your product or business, not generic off-the-shelf answers.
How much will it cost to run?
Cloudflare Workers has a generous free tier that covers most small and medium sites. You only pay your model API usage (often just a few dollars per month). No SaaS subscription.
Which providers do you support?
Any provider you prefer. I will recommend the best price and quality for your use case.
How fast will you reply and start?
I reply within 3-4 hours, usually the same working day. You get my recommended approach and a clear price before any work starts. If your task needs more time or a different approach, I will say so straight away instead of going quiet.
Can I use a provider other than the default - including self-hosted models like Ollama?
Yes. All of them work - the Worker just points at a different API endpoint and model name, and most of them speak the same REST API shape, so switching is a one-line change. I will recommend the best price and quality for your use case.

