I Built an Open Source AI Customer Support Agent (Clone It for Free)

Описание: I built a production-grade AI customer support agent and open sourced the entire thing. Clone it, customize it, deploy it on your own infrastructure — it's yours.

This agent uses RAG to answer from your actual docs, auto-corrects hallucinations before they reach your customers, hands off to humans when it's not confident, and comes with an embeddable chat widget you can drop on any website with a single script tag.

Full build walkthrough in this video — from architecture decisions to a live demo.

⚡ Clone the agent → https://github.com/vex-hq/customer_su...

🛠️ Tech Stack:
— Next.js 16 (App Router) + React 19 + TypeScript
— Vercel AI SDK + OpenRouter (300+ models)
— Vex SDK for runtime reliability (observe, verify, correct)
— PostgreSQL + Drizzle ORM + pgvector (RAG)
— BullMQ + Redis (job queue)
— BetterAuth (authentication)
— shadcn/ui + Tailwind CSS 4

🔑 Key Features:
— RAG Knowledge Base: ingest PDFs, text files, CSVs, web URLs — grounded answers with source citations
— Hallucination Blocking: every response verified by Vex before it reaches the customer
— Human Handoff: auto-escalates on low confidence, keywords, or explicit request — with full context
— Embeddable Widget: drop-in script tag with Shadow DOM isolation
— Multi-Tenant Orgs: role-based access (owner, admin, agent)
— Admin Dashboard: manage knowledge base, review conversations, configure agent behavior
— Extensible Tools: knowledge search, escalation, feedback collection — add your own (order lookup, refunds, CRM, etc.)
— Dark Mode, production security headers, and Docker Compose setup

🚀 Get started:
→ Sign up for Vex (free tier): https://app.tryvex.dev/auth/sign-up
→ Vex docs & homepage: https://www.tryvex.dev

📱 Follow along:
→ Twitter: https://x.com/7hakurg
→ Vex on Twitter: https://x.com/vex_ai_dev
→ LinkedIn:   / singhkabhishek8  

⏱️ Chapters:
00:00 — Intro: Why I built this
00:00 — The problem with AI support agents
00:00 — Architecture overview
00:00 — Setting up the project
00:00 — Building the RAG pipeline
00:00 — Integrating Vex for reliability
00:00 — The chat widget
00:00 — Human handoff flow
00:00 — Admin dashboard walkthrough
00:00 — Live demo
00:00 — How to clone and deploy it yourself

#opensource #ai #aiagent #customersupport #typescript #nextjs #openrouter #vex #rag #langchain #vercelaisdk #buildinpublic