Browse categories
Explore
Fiverr Pro
English
$
USD
I will build a custom knowledge base ai assistant
Nestor M
About this gig
An AI assistant that only answers from your material. 0 made-up answers.
I build knowledge assistants with LangChain, a vector database (Pinecone or pgvector) and OpenAI GPT or Claude. They read everything you give them: books, PDFs, transcripts, documents, and answer questions using only that material. Every answer traces back to the exact source, so you always know where it came from. No guessing, no generic AI answers.
What you get:
- Full ingestion of your material into a vector database
- Grounded answers with citations to the exact source
- Delivery on WhatsApp, live and available 24/7
- Setup, testing and documentation, fully handed over
How it works:
1. You upload your sources
2. I index them into a vector database
3. I ground the AI so it only answers from your material
4. It goes live on WhatsApp, answering with citations, 24/7
Why me: if it's not in your material, the assistant says so instead of guessing.
Message me before ordering with what you want it to know and where it should answer, and I'll recommend the right package.
Get to know Nestor M
Nestor M
AI Consultant and Automation Developer, AI Agents, n8n, FullStack
- FromSpain
- Member sinceJul 2026
- Avg. response time1 hour
Languages
Spanish, English
I help businesses eliminate repetitive manual work with AI and automation. I design and build AI agents (chat & voice), n8n workflow automations and the full-stack web apps that support them (Next.js, Supabase). My background is in industrial engineering and business (MBA), so I start from the business problem — not the tech — and deliver complete, working systems: WhatsApp bots, invoicing automation, internal dashboards, lead-qualification voice agents. From the first audit to production, end to end.
My Portfolio
FAQ
Will it make things up if it doesn't know the answer?
No. It only answers from your material and says so when something isn't covered, instead of guessing.
Can it cite where an answer came from?
Yes, every answer is grounded and traced back to the exact source document or section.
What material can it learn from?
Books, PDFs, transcripts, docs, or a mix of everything. Send me what you have and I'll index it.
Can it answer somewhere other than WhatsApp?
Yes, a web widget is available as an add-on, or included on the Premium package.
How do you handle data security and privacy?
Your documents and data stay in your own accounts and tools. I use them only to build and test the assistant, never share them, and I'm happy to sign an NDA.
How long does it take to go live?
Between 5 days for a single source and 18 days for a large, multi-channel setup, depending on your package and how much material you have.
Can you customize how it answers?
Yes. I tune its tone, answer length, how it cites sources, and what it should never guess, so it fits exactly how you want it to respond.
