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Reply Fast — AI Assistant for WhatsApp, Telegram and Websites

A WebForge product in development, launching soon: an AI assistant that answers customers on WhatsApp, Telegram and the website strictly from the company's own catalog and documents, with human approval for replies that commit the business.

Reply Fast — AI Assistant for WhatsApp, Telegram and Websites

The Challenge

Small businesses get the same questions dozens of times a day: “is it in stock?”, “how much is it?”, “when do you close?”, “do you deliver to another city?”. The answers usually live in the owner's head, on an employee's phone and in a few spreadsheets, and after hours the questions pile up until the next morning. A customer who does not get a quick answer goes to a competitor. A generic chatbot does not fix this: it makes up prices and stock levels and promises things the business cannot deliver.

Our Solution

We built Reply Fast as WebForge's own product. A business gathers its product and service catalog and its knowledge base in one panel, and the assistant answers on WhatsApp, on Telegram and through a website widget using only that data. Every conversation tells the customer they are talking to an AI assistant. Sensitive replies about stock, prices or orders can be held for approval, so a person approves or edits them before they go out, and a team member can take over any conversation at any time. Each business gets its own workspace, with roles and team invitations. Data isolation between businesses is enforced in the database through PostgreSQL Row-Level Security and separate database roles, not just in application code. The assistant is not tied to a single AI vendor: it works with any OpenAI-compatible model, including EU-hosted ones, and falls back automatically to a backup model if the first one does not respond.

Features

  • Replies on WhatsApp, Telegram and through a website widget
  • Direct WhatsApp connection through Meta's official API
  • Works with any OpenAI-compatible AI model, including EU-hosted ones
  • Answers only from the company's catalog and knowledge base
  • Catalog import for products and services from CSV, XLSX or XML
  • Human approval for replies about stock, prices or orders
  • A person can take over any conversation
  • Clear AI disclosure to every customer
  • Separate workspaces per business, with roles and invitations
  • Data isolation through PostgreSQL Row-Level Security
  • Romanian and English interface

Results

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Channels: WhatsApp, Telegram and web
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Replies outside business hours too
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Per-business data isolation in the database

Technologies Used

NestJSNext.js 16ReactTypeScriptTailwind CSS v4PostgreSQLpgvectorPrismaRedisBullMQWhatsApp Cloud APIDocker

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