Build AI agents for complex knowledge bases at scale.
Ingest entire websites, PDFs, and knowledge bases. Deploy agents that answer from retrieved evidence — with citations, a traceable reasoning record, and human handoff.
No credit card · For teams running production knowledge
In production at
More than a chatbot. A complete platform for reliable agents.
Production knowledge is messy. Reliable agents need more than a prompt and a few files — they need scale ingestion, grounded answers, and operational follow-through.
Bring in large websites, files, and knowledge bases.
Add websites, help centers, PDFs, policies, papers, FAQs, and service pages through ingestion workflows built for production sources.
Return source-grounded answers users can verify.
The agent writes from retrieved source passages and shows citations and traceable reasoning so users can check the evidence.
Turn reliable answers into production workflows.
Capture contact details, trigger forms, summarize conversations, and notify the right team when a conversation needs follow-up.
Most chatbot builders stop at a widget. ChatFast builds the whole agent system.
ChatFast reasons over complex knowledge base corpora, retrieves the evidence that matters, delivers answers, and executes actions.
If I cancel my annual plan halfway through, do I get a refund - and does my unused add-on credit carry over?
"Non-refundable after 30 days"
"Converts to account credit"
Customer is on an annual plan, cancelling mid-term.
No cash refund, but balance becomes account credit.
Add-on credits normally expire, but the annual exception keeps them.
Both forms of credit stay valid for 12 months.
You will not get a cash refund because annual plans are non-refundable after 30 days 1. Your remaining balance converts to account credit 2, and unused add-on credit carries over too 3.
Bottom line
- No refund, but full remaining value kept as credit
- Both credits stay valid for 12 months
From large knowledge bases to reliable AI agents.
A transparent pipeline for ingesting production sources, retrieving evidence, and producing answers users can verify.
Clean & ingest
The cleaner your data is, the better your agent performs. We clean, format, and prepare your knowledge base before retrieval ever starts.
Build the graph knowledge base
We organize sources into a connected knowledge layer so agents can reason across related pages, files, and concepts.
Agentic retrieval & synthesis
When the agent is not confident, it goes back to the knowledge base, retrieves more evidence, and refines the answer before responding.
