Yes. The Vatdi extension is free to install on OpenCart 3.x and 4.x, and the Free plan costs $0 with no card: AI answers from your catalogue, live human chat from the team inbox, order status lookup, lead capture and 95+ languages, up to 15 conversations a month. The only thing Free cannot do is remove the "Powered by Vatdi" badge.
OpenCart 3.x and 4.x extension
Live Chat Plugin for OpenCart with AI Answers
Vatdi is a free live chat plugin for OpenCart 3 and 4 where an AI answers first and your team steps in when it matters. It syncs your catalogue, looks up order status from your OpenCart orders, offers coupons, captures leads and answers in 95+ languages. Install from the OpenCart marketplace in about five minutes; the Free plan needs no card.
OpenCart 3.0.x, 4.0 and 4.1
Free plan, no card
Live human chat included
Order status from your store
Last updated September 2026
What the OpenCart chat plugin does on your store
One extension covers both jobs an OpenCart store hires a chat tool for: answering shoppers instantly, and getting a person into the conversation when the shopper needs one.
Catalogue sync
Products, categories, descriptions, prices and sale prices are synced from OpenCart and kept current. Stock and units sold are optional, so a lagging sync never promises stock you do not have.
Order status lookup
The customer gives an order number plus the email or phone on the order; the extension reads the order from your OpenCart database and the AI answers with the live status. "Where is my order?" stops reaching your inbox.
Live chat with your team
When the AI should not answer, or the visitor asks for a person, your team is alerted by email and sound and replies from the same widget. Agent hours, a shared inbox and missed-handoff tracking are included.
Best sellers from real sales
When the extension sends units sold, the AI can rank recommendations by what actually sells in your store instead of guessing. Without that data it never calls anything a best seller.
Coupons in chat
Active coupons and their conditions are known to the AI, so it can offer the right code when a shopper hesitates over price, and explain why a code did not apply.
95+ languages
The AI detects the visitor's language and answers in it. Every widget label can be translated per store, with an AI draft you review before saving.
Install the OpenCart chatbot extension in five minutes
No theme edits, no developer. The extension injects one script tag and handles the data connection for you.
1
Download the build for your version
The marketplace listing has two builds: OpenCart 3.0.x (installed as an OCMOD) and OpenCart 4.0 / 4.1 (native extension). Both are free.
Open the listing2
Upload and enable
In OpenCart admin: Extensions → Installer, upload the zip, then Extensions → Modules and install the Vatdi AI Chat Agent module. On 3.x, refresh modifications once.
Extensions → Installer → Upload → Extensions → Modules → Install → Edit3
Connect to Vatdi
Click Connect to Vatdi (Easy Connect) in the module settings. A free Vatdi account is created for the store, the widget appears on your storefront and the catalogue sync starts in the background. If you already have an account, sign in instead and the store is attached to it.
- Products and categories synced automatically
- Order lookup enabled for your store's orders
- Brand colours and logo detected from your storefront
4
Ask it three real questions, then add your policies
Open the storefront and ask the widget the questions your customers actually send: a product question, a shipping question and an order status. Then add your shipping, returns and FAQ pages (paste URLs or upload PDFs) in the Vatdi dashboard so those answers come from your own wording.
OpenCart live chat and AI chatbot in one widget
Store owners often treat "OpenCart live chat" and "OpenCart chatbot" as two different products. On Vatdi they are one conversation with two participants.
How a conversation flows
- The AI answers first. It retrieves the matching products, policies or FAQ entries from your synced data and answers from them, with a product card and link where relevant. If nothing relevant is found it says so instead of guessing.
- Handover when it matters. The visitor asks for a person, or the AI judges it should not answer alone — a refund decision, a complaint, or a question with no grounded answer in your data.
- Your team joins from the inbox. Email and sound alerts, then a reply from the same widget the customer is looking at. Statuses: Needs you, Handling, Team handling, Missed, Resolved.
- Hand back to the AI. When the human part is done, the AI resumes for follow-ups. Missed handoffs are counted so you can fix coverage rather than discover it from angry emails.
Agent hours, stated honestly
Set the days and hours a person is available. Outside them the widget tells visitors that a human is not online right now, keeps answering with the AI, and captures their email so you can follow up. Nobody waits on a "connecting you to an agent" spinner at 2 a.m.
Unlimited teammates on every plan, including Free, with per-page roles. There is no per-seat charge to add your warehouse or your weekend helper.
What the AI can answer from your OpenCart data
Answers come from your store, not from a general model's memory. This is what each common question is answered from.
| Shopper asks | Answered from | What the reply looks like |
|---|---|---|
| "Do you have this in a 42, and what does it cost?" | Synced product, options and price | Product card with price, sale price if active, link; stock only if you enabled it |
| "Where is my order 10482?" | OpenCart order lookup (order number + email or phone) | Current order status read live from your store |
| "How long is delivery to Germany?" | Your shipping page or FAQ entry | Your own wording, with the link to the policy |
| "Can I return it after 20 days?" | Your returns policy | The rule, the window and how to start a return |
| "What is your most popular blender?" | Units sold sent by the extension | Best sellers ranked by real sales; never a guess |
| "Is there a discount code?" | Active coupons and conditions | The code that applies, or why one does not |
| "I want to speak to someone." | Handover rules and agent hours | A person is invited, or an honest offline message plus lead capture |
Every conversation is graded 0–10 for answer quality in your dashboard, with plain-English advice on what to add to the knowledge base when a score is low. That is how you find the ten questions your store gets that nobody wrote a page for.
Compatibility, performance and security
OpenCart 4.0 and 4.1
Native extension using the OpenCart 4 event system. Install through the standard Installer; no core files are modified.
OpenCart 3.0.x
Installed as an OCMOD, so it can be disabled or removed cleanly from the Modifications screen without touching your theme.
Any theme
The widget is a single script tag rendered in its own frame, so it does not depend on your theme's markup or CSS. Colours, position, icon and avatar are set in the dashboard; custom CSS is available.
Loads after your page
The script loads asynchronously, so it does not block rendering or push out Largest Contentful Paint. Hide it on the cart and checkout pages, separately for desktop and mobile, if you prefer.
Credentials encrypted
The extension talks to Vatdi over HTTPS. Store credentials are encrypted at rest, data is isolated per store, and LLM requests are sent through OpenAI's API without being used to train models. Details are on the security and trust pages.
Your data stays yours
Export your leads (CSV) and your account data (JSON), delete the account and its data when you leave, and request a DPA if your customers are in the EU.
Which plan fits an OpenCart store
Every plan has every feature. Plans differ by monthly conversation volume; only paid plans can remove the "Powered by Vatdi" badge.
| Plan | Price | Conversations / month | Products synced | Good for |
|---|---|---|---|---|
| Free | $0 | 15 | 200 | Testing on real visitors; small catalogues |
| Starter | $4.49 / month | 150 | 2,000 | Most single stores; badge removable |
| Grow | $7.49 / month | Unlimited | 10,000 | Busy stores and peak seasons |
AI replies inside a conversation are never capped. Annual billing ($44.90 and $74.90 a year) saves about 17%. Full details on the pricing page.
Compared with other live chat options for OpenCart
The honest short version: the general-purpose chat tools are excellent inboxes, but none of them reads your OpenCart orders or catalogue. Prices as of September 2026; they change, so check each vendor.
| Tool | Free plan | AI answers | OpenCart order lookup | Where it is stronger |
|---|---|---|---|---|
| Vatdi | Yes, 15 conversations / month, every feature | Included on every plan, from your catalogue | Yes, via the extension | Stores that want AI and live chat in one flat price |
| Tawk.to | Yes, unlimited agents | Paid add-on | No | Free human-only live chat for a team that is always online |
| Tidio | Yes, 50 conversations, no AI | Lyro add-on, billed per conversation | No (apps for Shopify and WooCommerce) | Messenger, Instagram and email in one inbox |
| LiveChat | No | Separate product (ChatBot.com) | No | Large agent teams with routing and reporting |
| Crisp | Yes (Basic) | Not compared | No | Omnichannel inbox with a free tier |
If your support runs mainly through WhatsApp, Messenger or email, keep the tool that owns those channels: Vatdi is the website widget only. Detailed comparisons: Tidio alternatives, Tawk.to alternatives, LiveChat alternatives.
OpenCart live chat plugin: questions store owners ask
Yes. There are two builds on the marketplace listing: one for OpenCart 3.0.x (installed as an OCMOD) and one for OpenCart 4.0 and 4.1 (a native extension). Both connect to the same Vatdi account and offer the same features.
Both. The AI answers first. When a visitor asks for a person, or the AI hits a question it should not answer, the chat is offered to your team: you get an email and a sound alert, reply from the same widget the customer sees, and hand the conversation back to the AI when you are done. Agent hours tell visitors honestly when nobody is available.
Yes. The customer types the order number plus the email or phone used on the order; the extension looks the order up in your OpenCart database and the AI replies with the current status. Nothing is shown unless the order number and contact detail match.
After you connect, the extension sends your products, categories, prices, sale prices and, if you enable it, stock and units sold to your Vatdi knowledge base. The AI retrieves the matching products for each question and answers with a product card, price and link. Changes in OpenCart are re-synced automatically.
The widget is one script tag that loads asynchronously after your page content, so it does not block rendering or delay Largest Contentful Paint. You can also hide it on the checkout and cart pages so it never competes with the buy button.
Yes. The AI detects the language the visitor writes in and answers in it, across 95+ languages, and you can translate every widget label per store. Your product data can stay in your store's language.
The widget stops opening new conversations for new visitors until the next monthly cycle or an upgrade. Starter ($4.49 a month) raises the cap to 150 conversations and lets you remove the badge; Grow ($7.49 a month) has no conversation cap at all. AI replies inside a conversation are never capped on any plan.
Yes, and there is nothing to migrate. Install the Vatdi extension, let the catalogue sync, paste the answers you already wrote for the old tool into the knowledge base, and remove the old script. Running both for a week to compare transcripts is fine; the widgets do not conflict.
Other Integrations
The Vatdi AI chatbot also works with these platforms.
WordPress & WooCommerce
AI chatbot plugin for WordPress sites and WooCommerce stores.
Shopify
Official app on the Shopify App Store.
PrestaShop
AI chatbot for PrestaShop 8 and 9 shops.
Magento / Adobe Commerce
AI chatbot for Magento 2.4+ and Adobe Commerce.
Shopware
AI chatbot for Shopware 6 storefronts.
All Integrations
See every platform Vatdi supports, with setup steps for each.
Prefer hands-off setup?
Create your free account and request the setup service: we install the extension, check the sync and load your policies into the knowledge base at no charge.
Put live chat with AI on your OpenCart store today
Install the extension, ask it your customers' ten most common questions, and judge the answers before you pay anything.
Free extension
No card for the Free plan
Five-minute install