FAQ

Frequently Asked Questions

Practical answers about ChatNexus — product, setup, WordPress, billing, and privacy. Can't find what you need? Contact us.

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General

ChatNexus is a no-code tool for building AI chat assistants that answer from your content. Upload documents, paste text, or link web pages, then embed the assistant on your site or share a chat link. Appointment booking is built in. The service is operated by CHISTY DIGITAL FORGE, a sole trader based in Sydney, NSW, Australia.
No. ChatNexus builds a support assistant for one business, and it answers from the documents you upload — not from the open internet or the AI model's general knowledge. If a question isn't covered by your content, the assistant says so rather than guessing. It also cannot generate or supply images, music, audio or video, and it cannot browse the web. If you want an assistant that writes essays, code or creative content, ChatNexus is not the right tool.
By default, no — that is deliberate. An assistant that invents answers is worse than one that admits a gap, because customers act on what it says. Add the missing content to your knowledge base and the assistant will start answering it. Agent settings do include an option to allow general answers, but we do not recommend it for customer-facing assistants.
Individuals, small businesses, and teams who want AI customer support, an internal Q&A bot, or a specialised chatbot — without writing code. If you have information people should get through chat, ChatNexus is for you.
No. Most people can create an assistant in a few minutes: choose a persona, add your content, and publish. To put it on a website, paste one short code snippet.

Agents & Knowledge Base

Plain text, PDFs, web page URLs (including a public sitemap.xml), and Google Docs / Sheets. ChatNexus indexes that content so your assistant can look it up when answering questions. Details in the Knowledge Base guide.

Agent creation step for adding knowledge base content
Paste FAQs or docs during setup — you can upload files and crawl URLs after the agent is created.
Think of it like a smart search before the AI replies. Your content is split into small pieces and stored for lookup. When someone asks a question, ChatNexus finds the most relevant pieces and passes them to the AI — so answers are based on your material, not only general training data.

(Under the hood this is called RAG — Retrieval-Augmented Generation.)

After you save text, upload a file, or add a URL, ChatNexus chunks and indexes that content for retrieval. Short text is usually available within moments; larger PDFs or site crawls can take longer while processing finishes. Then ask related questions in Test Chat to confirm the new material is being used.

Use Test Chat on the agent page, then:

  • Add or clarify the missing facts in your knowledge base
  • Tighten the system prompt if tone or behaviour is off
  • Review real conversations to spot recurring gaps

Prefer adding specific content over turning on general answers for customer-facing bots. See the Testing & Optimizing guide.

Yes. You can set a name, avatar, welcome message, and accent colour, plus a system prompt that defines tone and behaviour. The chat widget on your site picks these up automatically.

Customise agent welcome message and accent colour with live preview
Welcome message and theme colour update the live widget preview instantly.

Open your agent’s settings, copy the embed snippet, and paste it just before the closing </body> tag on your site. The chat widget appears automatically. You can also share the public chat link. On WordPress, install the free WordPress plugin from WordPress.org instead of editing theme files.

Example embedded chat widget answering from business content
Example embedded widget (demo agent branding). Your name, colour, and avatar are customisable.

Yes. Install the free plugin from WordPress.org by searching for “Chisty Digital Forge Cloud AI Agent”, activate it, then paste your Agent ID under Settings → Cloud AI Agent. The widget appears on every page — no theme edits.

You still need a ChatNexus account and an agent. Full steps: WordPress install guide.

Search Plugins → Add New for “Chisty Digital Forge Cloud AI Agent”. It connects your WordPress site to ChatNexus and is operated by CHISTY DIGITAL FORGE. View the listing.
Yes. In Settings → Cloud AI Agent, turn off Auto-inject Widget, then add the [chatnexus_chat] shortcode only on the posts or pages where you want it. On paid ChatNexus plans you can also set Allowed Domains on the agent so the widget only loads on your site.
Yes. The plugin is free and only embeds your agent. Create a ChatNexus account, build an agent, then paste the Agent ID into WordPress. Free includes a limited access window for new signups — see Pricing.

ChatNexus uses AI from OpenAI, Groq, and xAI (Grok). You pick a model per agent — but your plan controls which ones you can use:

  • Free — standard models only (for example GPT-4o Mini or GPT OSS 20B).
  • Starter — premium models up to GPT-5.4 Mini.
  • Pro / Enterprise — full premium access, including GPT-5.4, GPT-5.5, and GPT-5.6.

Example: on Free you can compare standard models in the AI Model Playground; premium models appear after you upgrade.

Features

Yes. Enable appointment booking on an agent, set weekly availability and date exceptions, and visitors can pick a slot in the chat widget. Optionally connect Google Calendar to block busy times and write confirmed bookings to your calendar. Visitors get a confirmation email with links to reschedule or cancel — no login required. Details in the Appointment Booking guide.

Chat widget with in-chat appointment booking calendar
In-chat booking calendar (example agent). Availability and duration are configured per agent.

Yes. Ready-made industry templates include starter system instructions and knowledge base text. Pick one when you create an agent, optionally use Quick Fill for your business details, then edit before publishing. Browse the template gallery.

Industry template selection during agent creation
Choose a template to pre-fill tone and starter knowledge — everything remains editable.
Yes. Every agent has a public chat page you can share as a link — useful for demos, QR codes, email, or channels where you cannot paste an embed script. Embedding the widget on your site is still the usual option for website visitors.
Yes, when you enable voice for an agent. Visitors can speak into the microphone and, if you turn on spoken replies, hear answers read aloud. Free accounts include a monthly voice transcription budget; paid plans are unlimited for transcription. See the Integrating Your Agent guide for voice notes on embedded sites.
On paid plans, yes. Set Allowed Domains on the agent (one domain per line). Requests from unlisted domains are rejected. On Free, domain restriction is unavailable and the widget can run on any site.

Pricing & Billing

Yes. Free includes up to 2 agents, 300 messages and 300 AI credits per month, for 30 days from signup. Free accounts use standard AI models only.

Example: you can build a support bot, add FAQs, and test it on your site within that window. When Free ends (or you need premium models / more capacity), upgrade on the Pricing page.

When the free access window ends, you need a paid plan to keep using ChatNexus agents for live chats. Your exact end date is pinned at signup and shown in Settings and Billing. Upgrade anytime from the Pricing page or Billing.
Paid plans are billed monthly (or yearly if you choose that). The plan fee covers the platform plus your monthly AI chatting allowance. Payments go through Stripe. Cancel anytime from Billing — you keep access until the period ends.

For a plain walkthrough of messages, credits, and extra usage, see the Usage & Billing guide.

Yes. Paid plans are available monthly or yearly. Yearly billing can save up to about 14% versus paying month by month. Switch the period toggle on the Pricing page before checkout.

Messages = how many times your bot replies this month. Each bot answer uses one message.

Credits = the fuel for each reply. A simple model might use about 3 credits; a powerful one might use 7–30. Your plan includes a monthly credit pool (for example, Pro includes 15,000).

Example: with 3,000 credits on Starter, a 3-credit model ≈ 1,000 answers; a 12-credit model ≈ 250 answers on the same pool.

Both counters are in Settings.

On Free, the bot stops answering until next month or you upgrade.

On paid plans, you choose in Settings:

  • Stop at the included amount — turn off extra AI usage. You only pay your plan fee.
  • Allow a little extra — keep extra usage on and set a monthly spending limit (for example $25 on Starter). Extra replies after your included credits are added to your invoice, but never above that limit. When the limit is reached, the bot stops.

Example: Starter is $29/month with 3,000 credits included. If you allow extra usage with a $25 limit, the most you pay for extra AI that month is $25 on top of the plan fee.

No — not if you use the spending limit. Extra AI never goes past the monthly limit you set in Settings. We also email you around 80% and 100% of included credits, and when you near your spending limit. Prefer to stop at the included amount? Turn extra usage off in Settings.
Yes, anytime from Billing. Upgrades start right away. Downgrades take effect at the end of your current billing cycle.
Yes. Cancel from Billing anytime. You keep access until the end of the current billing period. New paid subscriptions may also qualify for an immediate cancel-and-refund within the first 72 hours (shown in Billing when available).
See our Refund Policy. In short: unused time in a billing period is usually not refunded; we review special cases. Extra AI usage already used is usually not refundable except for billing errors or a verified service failure. New paid subscriptions may also qualify for an immediate cancel-and-refund within the first 72 hours (shown in Billing when available).

Privacy & Data

On Render (app hosting) and Neon (database), mainly in the United States. We handle data under Australian privacy law and, where it applies, the GDPR. Full details are in the Privacy Policy.
No. We do not use your knowledge base or chat history to train AI models. Your content is only used to answer questions inside your assistants. Third-party AI providers (such as OpenAI and Groq) have their own policies — we link to those in our Privacy Policy.
Yes, from Settings. That permanently removes your profile, agents, knowledge base, and conversations. Some records may be kept for legal or billing reasons, as described in the Privacy Policy.
Yes. Use our standard DPA when you need one for GDPR or similar rules. Start from the DPA page, or continue from agent creation if your use case is flagged for review.

Account & Support

On the login page, click “Forgot password?”, enter your email, and use the reset link we send. Check spam if it does not arrive within a few minutes. (Accounts that only use Google/Facebook/X sign-in usually reset the password with that provider instead.)
Email us at support@chatnexus.cloud. We aim to respond within one business day (AEST).
Do not upload sensitive personal data such as health records, bank passwords, passport details, or privileged legal communications. Do not use ChatNexus for illegal activity, harmful content, or to bypass AI safety rules. Details are in the Terms of Service and High-Risk Use Policy.

Yes — with a ChatNexus account, under Free Tools:

  • AI Model Playground — compare two models side by side.
  • System Prompt Generator — draft a chatbot system prompt.
  • FAQ Generator — turn pasted content into a FAQ.

Playground models match your plan (same rules as agents), and each account gets a daily comparison limit (currently 10 per day). These demos do not use your agent credit pool.

ChatNexus Free AI Tools: Playground, System Prompt Generator, and FAQ Generator
Free Tools are available from the site nav once you have an account.

Still have questions?

Our support team is happy to help.

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