Chat agent
The AI assistant that answers your customers from what you taught it.
The chat agent is the heart of Central AI: an AI assistant that answers your customers on your website, on Messenger, Instagram and WhatsApp, and through the Chat API, using what you taught it. Every other agent builds on it: the Sales Agent sells through it, the Smart Lead Agent reads its conversations, and the Support Ticket Agent raises tickets from them.
What it does
- Answers from your knowledge. For each question it looks up the 8 most relevant passages from your knowledge base (documents, CSV files, FAQs, website pages and records you sent through the Knowledge Sync API) and answers from them.
- Knows what you sell. It reads your offerings (name, description, price and link) when a customer asks about them, even when the Sales Agent is off.
- Understands the customer’s language. A question in Bangla or another language is translated for the search, so it still finds your English knowledge, and the answer comes back in the customer’s language.
- Keeps each business separate. It only ever searches your own knowledge; no other business’s data is reachable from your agent.
Turn it on
- Add knowledge: upload a document or FAQ CSV, train on your website, or connect the API (Knowledge base).
- Open Agent & Chat → Agents in your dashboard and write the agent’s instructions. Its name, welcome message, colours and logo are on Embed & API → Widget.
- Try it in the Playground (Agent & Chat → Playground), then put it on your site with the website chat widget or connect Messenger, Instagram and WhatsApp.
Configure
| Setting | Where | What it changes |
|---|---|---|
| Instructions | Agent & Chat → Agents | How the agent behaves: tone, what to focus on, what to avoid. |
| Name and welcome message | Embed & API → Widget | What the customer sees when the chat opens. |
| Colours, logo and position | Embed & API → Widget | The widget’s look on your website. |
What the customer sees
A chat window on your website (or a normal conversation on Messenger, Instagram or WhatsApp) that answers in seconds, remembers the conversation, and, when the Sales Agent is on, shows offering cards with prices and a button to buy, apply, book or register.
Credits and limits
Each customer message the agent answers uses one chat credit. Chat credits per month by plan:
| Plan | Chat credits |
|---|---|
| Free | 60 |
| Starter | 3000 |
| Growth | 15000 |
| Scale | 50000 |
| Enterprise | 999999 |
Troubleshooting
- It says it does not know something that is in my knowledge base.
- Check the item finished processing on the Knowledge Base page, and that the wording matches how customers ask. An FAQ with the customer’s own question works best.
- It quotes an old price.
- Prices come from your offerings when the Sales Agent is on. Update the offering, or the knowledge item that states the price.
- It stopped answering.
- Check your chat credits under Billing & Usage.
Signed in? Your own keys, endpoint addresses and the full error tables are
on the API reference inside your dashboard. These public pages never show
anyone’s key: examples use placeholders such as YOUR_EXTERNAL_API_KEY.