Most "best WordPress chatbot plugin" lists are written by a chatbot company that puts itself first. This one is too: we make BotDesk, one of the five plugins below. So we've stuck to facts you can check yourself (price, where the AI comes from, active installs and last update on WordPress.org) and said plainly where BotDesk is the wrong pick.
The short answer: there isn't one best plugin. There are three kinds of AI chatbot for WordPress, and picking the wrong kind is how people end up with a bot that costs more every month or never answers a customer correctly.
The five plugins, side by side
Scroll the table sideways to see every column.
| Plugin | Kind | Price | Where the AI comes from | WordPress.org | Best for |
|---|---|---|---|---|---|
| AI Engine (Meow Apps) | Bring your own AI key | Free plugin; Pro from $59/year | Your own API key from an AI provider; you pay the provider for each message | 90,000+ active installs; updated Nov 5, 2026 | Developers and content sites |
| WPBot | WordPress-native bot, AI optional | Free plugin; Pro $39, $99 or $189 a year, or $149 to $369 lifetime | Works without AI, or with an AI service you connect (OpenAI, Gemini, Grok, OpenRouter) | 5,000+ active installs; updated Nov 5, 2026 | Tinkerers who want rule-based flows plus AI |
| Tidio | Chat platform with a WP plugin | Free (50 billable conversations); Starter $24.17/mo; Growth from $49.17/mo | Lyro AI: first 50 AI conversations free, then an add-on from $32.50/mo for 50 | 70,000+ active installs; updated Sep 1, 2026 | Online stores and support teams with several agents |
| Chatbase | Chat platform with a WP plugin | Hobby $32/mo billed yearly (700 message credits) | Included, counted in message credits; badge removal is a $99/mo add-on | 4,000+ active installs; last updated Mar 3, 2025 | Teams building one custom AI agent |
| BotDesk AI Chat | Website assistant for local businesses | Free (50 conversations, 10 leads a month); paid $29, $59 or $99 a month | Included; unlimited conversations on paid plans, no per-message charge | New: listed August 2026, fewer than 10 active installs; updated Nov 4, 2026 | Salons, clinics, trades and other service businesses |
How we compared them
Star ratings and install counts tell you what's popular, not what fits your site. These are the questions that decide whether a chatbot plugin works for you:
- Is the AI included, or metered? Some plugins are free but you pay an AI provider per message. Others count "conversations" or "credits" and charge more as you get busier.
- Does it learn your business from your site, or do you write every answer and prompt yourself?
- What happens when someone wants to book or get a quote? Can it take their name and number and send it to you, or does it only chat?
- Can a person take over? Some questions shouldn't be answered by an AI.
- Is the plugin maintained? WordPress.org shows when each plugin was last updated. A plugin with no update in over a year deserves a closer look before you install it.
Kind 1: Plugins that run on your WordPress (AI Engine, WPBot)
AI Engine is the most installed of the five, with more than 90,000 active installs. The core plugin is free and Pro starts at $59 a year. WPBot is older (on WordPress.org since 2018) and works with or without an AI service: rule-based chat flows on their own, or AI replies through a provider you connect. Its Pro licenses run $39 to $189 a year.
The catch is in "bring your own AI." For AI Engine's chatbot, you create an account with an AI provider, paste in an API key, and pay that provider for every message. You also write the instructions that tell the bot what to say, and keep them accurate when your prices or hours change.
That's a good deal if you're technical, or you're adding a chatbot to a content or documentation site. It's a poor fit if you run a busy business and just want the bot to know your prices and hours without learning prompt writing.
Kind 2: Chat platforms with a WordPress plugin (Tidio, Chatbase)
Tidio is a mature chat widget with a real free tier, a shared inbox and up to 10 seats on its lower plans. Its AI, Lyro, is mostly a separate add-on: the first 50 AI conversations are free, then plans start at $32.50 a month for 50 AI conversations, on top of the chat plan, which is itself capped by "billable conversations." It's the right call for an online store or a support team that wants flow builders and several people answering chats. (Longer version: BotDesk vs. Tidio.)
Chatbase is a capable builder for one custom AI agent trained on your documents. Usage is counted in message credits (700 a month on Hobby), and removing the Chatbase badge costs an extra $99 a month. Its WordPress plugin hasn't been updated on WordPress.org since March 2025, though the plugin only places the widget, so the platform itself may be current. (More: a Chatbase alternative for local businesses.)
Kind 3: A website assistant for local businesses (BotDesk)
This is what BotDesk is built for. You don't train a blank bot: you paste your website address and it reads your pages (services, prices, hours, service area) and answers from them. On WordPress you install the free BotDesk AI Chat plugin from Plugins > Add Plugin and paste your site key, or paste one line of code into a footer box. The WordPress install guide shows each step, with a short video.
- The AI is included. Free covers 50 conversations and 10 leads a month, no card. Paid plans are $29, $59 or $99 a month with unlimited conversations and no per-message charge. Each paid plan starts with a 30-day free trial; a card is taken at checkout.
- It takes leads. When a visitor wants a callback, a quote or an appointment, it asks for their name and phone number (email optional) and emails the lead to you. Growth can book real times against your calendar link and lets you jump into a chat live.
- You can correct it in plain English: pin the answers it must always get right, or upload a price list.
Which one should you pick?
- You're a developer, or it's a content or docs site: AI Engine. Cheapest and most flexible if you're happy managing an API key.
- You want rule-based flows with some AI, on a budget: WPBot.
- You run an online store or a support team: Tidio, and budget for the Lyro add-on.
- You want one custom agent trained on your documents: Chatbase.
- You run a local or service business and want leads, not a project: BotDesk. It sets itself up from your site and costs the same in a busy month.
Questions people ask
Is there a free AI chatbot plugin for WordPress?
Yes, several. AI Engine and WPBot are free plugins, but you pay an AI provider for each message through your own API key. Tidio's free plan includes 50 billable conversations and 50 Lyro AI conversations in total. BotDesk's Free plan covers 50 conversations and 10 leads a month with the AI included and no card.
Do I need an OpenAI API key for a WordPress chatbot?
Only with bring-your-own-key plugins such as AI Engine. Hosted chatbots such as Tidio, Chatbase and BotDesk run the AI for you and charge for it through their own plans.
Will a chatbot plugin slow down my WordPress site?
Hosted chatbots load a script from the vendor rather than running on your server. BotDesk's chat code is about 73 KB compressed and loads at the end of the page, so your content shows first. Caching and speed plugins can delay the chat bubble; the install guide covers the common ones.
Can a WordPress chatbot work as an AI receptionist?
For website visitors, yes: it can answer questions about your services, prices and hours and take callback or booking requests while you're busy. It won't answer phone calls. For how that compares with a person, see AI receptionist for small business.
Bottom line
Pick the kind before you pick the plugin. Bring-your-own-key plugins are cheap and flexible for technical owners. Chat platforms suit stores and support teams. A local business that wants the bot to know its services on day one, take leads and cost the same every month is the case BotDesk was built for.
The quickest way to judge is to see your own business in it: the demo generator builds a working bot from your website before you install anything or sign up.