Description

TWX-Chat is a powerful and flexible AI chatbot plugin for WordPress, designed to enhance user engagement and provide intelligent, automated support. Powered by OpenAI, this plugin allows you to add a customizable chatbot to your website that can answer questions, provide information, and guide users.

Key Features:

AI-Powered Chatbot: Utilizes OpenAI’s GPT models to provide natural and intelligent conversations.
3D Talking Avatars: Select from available 3D Avatars to add extra engagement for all of your visitors. No time limits!
Knowledge Base Integration: Automatically builds a searchable knowledge base from your website’s pages, posts, or even a sitemap (paid plan). The chatbot uses this “context” to provide relevant and accurate answers based on your content.
Site Crawler: Includes a built-in site crawler to automatically keep your knowledge base up-to-date with the latest content from your site.
Customizable: Customize the chatbot’s appearance, greeting messages, common questions, flashcards and more. Supports both embedded and floating chat styles.
Streaming Support: Provides fast, streaming responses for a smoother user experience.
Shortcode Builder: Easily create multiple chatbots with different styles and knowledge, and simply add the id to any page or post using a simple shortcode.

Whether you want to provide 24/7 customer support, create an interactive FAQ, or simply offer a more engaging way for users to explore your site, TWX-Chat provides the tools you need.

External Service Usage

OpenAI

This plugin connects to the OpenAI API (https://api.openai.com) in order to provide AI-powered responses and functionality. This includes streaming and non-streaming responses to the Chatbot, and also OpenAI Assistant integration (Chat Threads, Responses, Files etc).

OpenAI API Terms of Service: https://openai.com/policies/terms-of-use
OpenAI API Privacy Policy: https://openai.com/policies/privacy-policy

Amazon AWS

This plugin also connects to Amazon Polly and S3 APIs (*.amazonaws.com) in order to provide Text-To-Speech audio during Avatar Chatbot conversations.

AWS Customer Agreement (Terms of Service): https://aws.amazon.com/service-terms/
AWS Privacy Notice: https://aws.amazon.com/privacy/

Account Requirements

To use API features, an account with OpenAI and optionally Amazon AWS may be required. API keys are entered by the user in the plugin settings.

Remote Resources

The plugin connects to our external server (twxchat.twxlabs.au) in order to download 3D avatar assets. This occurs once per Avatar Character selection only. This helps keep the ZIP distributable to a manageable size rather than having all the Character GLTF 3D models in the package.
It also allows us to release new Avatar Characters in future which can simply be downloaded as needed.

If you are on a paid plan, calls to the remote server are also made to verifiy your Customer Key.

Directly Accessible Files

The following scripts are directly accessible by design for the followig reasons:

stream_handler.php – is intentionally accessed directly via javascript EventSource for streaming responses from OpenAI. This file includes the proper WordPress bootstrap and nonce checks within it to prevent unauthorized access.

Planned Improvements

Better Internationalization
More Avatar Characters
MCP/Agent2Agent support
Also there a loads more features in our paid plans. Check the twxchat website here

Screenshots

Chatbot in action – Talking Avatar Floating
Chatbot in action – Talking Avatar Expanded with Conversation Panel and Flashcards
Chatbot in action – Embedded Chatbot with Sources and Feedback
Admin Settings – Chatbots list and Edit
Admin Settings – Site Crawler
Admin Settings – Knowledge Base
Admin Settings – Chat Log (available in paid plans)

Installation

Activate the plugin through the ‘Plugins’ menu in WordPress.
Follow the setup instuctions on our website.

All questions and feedback welcome!

FAQ

Do I need an OpenAI API key?: Yes, this plugin requires an OpenAI API key to function. You can get a key by signing up on the OpenAI website.
Do I need any other Keys?: Yes. If you want to use the 3D Avatar chatbots, you will need an AWS Cognito Pool Identity Key in order to allow the chatbot to speak. Instructions for this are on our website.
Also if you want to crawl your Google Drive folder (paid plan option), this will need to be entered in the General settings.
How does the Knowledge Base work?: The plugin’s Site Crawler can read your posts, pages, images, Google Drive folder, or even a custom Sitemap (paid plans only), to create a Knowledge Base. When a user asks a question, the chatbot searches this knowledge base to find the most relevant information and uses it to form an answer. This ensures the responses are based on your site’s content.
Can I fine-tune my knowledge base?: Yes absolutely! Use the Knowledge Base manager in the Admin settings to create new, edit existing, delete KB entries. You can even Filter and Query the Knowledge Base to see what entries (aka Sources) are relevant and would be used in the Chatbot during User queries.
Is there time limits like with other Avatar chatbots?: No. You can test and practise with your Avatars as long as you like, and Users can interact with them as long as you like. There are no time limts like other 3D Avatar providers. This is something we thought was very annoying with other providers and inspired us to create this unlimited feature.
Can I view and analyze my visitor’s chat conversations?: Not with the Free version of the plugin, but definitely with any of the paid plans.
More FAQs: More FAQs and Demos here.

Reviews

nsa303 September 17, 2025

TWXChat is a simple to install plugin that delivers on the promise of creating customised chatbots for Wordpress sites. As a developer I use it on most of my clients websites

Read all 1 review

Contributors & Developers

“TWX-Chat – AI Chatbot with Talking Avatars” is open source software. The following people have contributed to this plugin.

twxlabs

Translate “TWX-Chat – AI Chatbot with Talking Avatars” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

1.9.23

Bugfix: Chatlog update issue from JS. Fixed.

1.9.22

Enh: Users can now re-join their previous Chatbot conversations using Thread ID. Admins can allow this for any user with a valid Thread ID or just logged-in users.
Bugfix: Admin Chatlog filtering was returning more results than filter specified.

1.9.19

Enh: Site Crawler now cleans up old/non-existing Knowledge Base entries to ensure Chatbots dont use them during conversations.

1.9.17

Bugfix: Split large content pages/posts into separate KB entries avoiding Site Crawler errors.

1.9.16

Bugfix: Site Crawler was crawling Password Protected pages even only selecting Public Pages/Posts in settings.

1.9.15

Enh: Better reporting on Site Crawler (LLM token checks prior to embedding)

1.9.14

Enh: All versions. Option to receive Daily/Weekly email summaries of visitor interactions. See new ‘Reports’ settings tab. Requires SMTP to be configured in WordPress.
Enh: Better error and progress reporting on Site Crawler.

1.9.11

Enh: Pro version. REST API for Chatbot Query added. Developers can now query a TWX-Chat chatbot from their Apps. Includes long-running conversations/threads and Chat Log entries.

1.9.10

Enh: Site Cralwer > Crawl onsite Media items, will now also crawl PDFs in the Media Library. PDFs are split into pages and each page is inserted into the Knowledge Base. Only PDFs with ‘Description’ or ‘Caption’ metadata are crawled.

1.9.9

Enh: Improve .js and .css refresh on browser after new releases
Enh: Site Crawler. Added ‘Exclude sources’ setting to allow exclusion of unwanted posts/pages in KB

1.9.8

Bugfix: Getting error ‘missing/empty param: threadId’ for OpenAI Assistants using streaming. This has not been implemented yet. Fixed validation in chatbot settings.
Enh: improved chatbot setting show/hide and handling in ajax events.

1.9.5

Bugfix: If enter Assistant ID in chatbot settings and then switch back to ‘Knowledge Base’ setting, getting missing threadId error in chatbot. Improved validation also.

1.9.4

Enh: Chatbot Settings. Additional validation for Avatar voices that are unsupported by AWS Cognito Pool Identity Key region
Enh: Plugin Settings. Generate additional Copy Support Info

1.9.3

Enh: Chatbot Settings. Allow Avatar voice selection from dropdown list instead of old text entry and also Play sample voice

1.9.1

Enh: Pro Plan. WooCommerce Product integration into the Site Crawl/Knowledge Base
Enh: Detect if Free codebase downloaded from twxlabs.au and auto check for updates

1.8.19

Bugfix: Create/Edit Chatbot console error. Missing array element ‘model’

1.8.18

Enh: Allow FREE Plan users to select any 2 Avatar Characters (not just Cristine & Luke characters like before)

1.8.16

Enh: Added LLMS.txt creation option to Site Crawler settings
Bugfix: (minor) Fixed hyperlink escaping in Site Crawler Last Run setting

1.8.15

Admin Test: Auto and manual plugin update options for paid plans

1.8.9

Removed old twxBabylon js from assets/js
Admin Enh: Updated Plugin ‘View Details’ logic for paid plans
Admin Enh: Auto plugin update for paid plans
Admin Enh: New ‘Update Now!’ button in ‘Plugin Info’ tab for manual plugin update without ZIP download
Admin Bugfix: ‘Plugin Info’ tab. Invalid Customer Key allowing manual ‘Check for Updates’

1.8.8

Bugfix: Feature buttons click causing navigation error
Readme.txt updates

1.8.6

Readme.txt updates

1.8.5

Version approved by WordPress.org

1.7.7

Version re-submitted to WordPress.org with suggested fixes

1.7.0

Version submitted to WordPress.org for review