AI agents for complex
knowledge bases at scale.
ChatFast reasons over entire websites, PDFs, and knowledge bases — and shows the sources behind every answer.
The answer already exists. Getting it to the right person is the problem.
Your content already answers most questions. What’s missing is delivery — accurate, cited, and handed to a person when it matters.
Most chatbot builders stop at a widget. ChatFast builds the whole agent system.
Real evidence, answers you can verify, and the follow-up handled.
From large knowledge bases to reliable AI agents.
Three steps from raw sources to answers people can verify.
We clean and format your sources before retrieval ever starts.
Sources are linked into a graph, so agents reason across related pages and concepts.
Low confidence? The agent loops back, gathers more evidence, and refines before answering.
Inspect the answer before anyone trusts it.
Ask a question, then review the trace, sources, and citations — before you deploy.
Fig. 02 — Playground trace, sources & citations
Frequently asked questions.
Teams that need reliable AI agents over large websites, files, and knowledge bases — with cited, source-grounded answers and a clean follow-up record.
Most tools stop at a small upload and a widget. ChatFast ingests production-scale sources, cites its evidence, refuses to guess, and hands off to a person when needed.
Websites, sitemaps, help centers, product docs, PDFs, papers, policies, and other document collections.
Yes. Every answer links back to the page, section, or passage it came from.
The agent says it doesn't know, shows the closest sources, or hands the conversation to a person. It never invents an answer.
Website sources stay aligned with your pages as they change. Document collections can be added or replaced anytime.
Minutes. Create an agent, add a website or documents, and ask questions in the playground.
Yes. Add it to your site as a customer-facing assistant that answers from approved sources, captures leads, and summarizes conversations for your team.
Launch reliable AI agents on large websites, files & knowledge bases.
Cited answers, lead capture, and human handoff — live in minutes.