8 Best Botpress Alternatives for Building AI Chatbots in 2026
Looking for Botpress alternatives? We compare 8 top AI chatbot platforms — including pricing, features, and honest pros & cons — to help you find the right fit.
meta_title: 8 Best Botpress Alternatives for Building AI Chatbots in 2026
meta_description: Looking for Botpress alternatives? We compare 8 top AI chatbot platforms — including pricing, features, and honest pros & cons — to help you find the right fit.
tags: AI Chatbots, Botpress, Chatbot Platforms, Comparison
If you've been evaluating Botpress and found yourself wrestling with unpredictable AI Spend costs, a steep learning curve, or the feeling that you need a developer on speed dial just to get a chatbot live — you're not alone. Botpress is a powerful platform, but it's not the right fit for every team.
The good news? The AI chatbot market in 2026 is packed with capable alternatives, each with different strengths. Some prioritise simplicity over customisation. Others nail specific channels like WhatsApp or Instagram. A few give you enterprise-grade control without the enterprise-grade complexity.
TL;DR: If you want the fastest path from "I need a chatbot" to "it's live and working," FastBots.ai is the best overall Botpress alternative — flat-rate pricing from $39/month, no coding required, and multi-channel deployment in minutes. For social media marketing, go with ManyChat. For developer-led projects needing full control, Rasa remains the gold standard.
We tested, researched, and compared eight Botpress alternatives across pricing transparency, ease of use, AI capabilities, channel support, and value for money. Here's what we found.
Why Look for a Botpress Alternative?
Before diving into the alternatives, it's worth understanding the specific pain points that drive teams away from Botpress. This isn't about bashing the platform — it's about recognising where it falls short for certain use cases.
Unpredictable Pricing
Botpress uses a "base fee plus AI Spend" model. The Plus plan starts at $89/month, but your actual bill depends on how much AI processing your bot does. This usage-based AI Spend component can lead to billing surprises, particularly as conversation volumes grow or if your bot handles complex queries. For businesses that need budget certainty, this is a genuine problem.
Technical Complexity
Despite having a visual flow builder, Botpress still leans heavily towards developers. Advanced automations often require JavaScript knowledge, and integrating with common business tools like CRMs frequently means writing custom code. If your team doesn't include developers — or if you'd rather not tie them up maintaining a chatbot — this creates friction.
Documentation Gaps
Multiple user reviews on G2 and community forums flag incomplete documentation, particularly for advanced features. When you're trying to ship a bot quickly, hunting through sparse docs or waiting for community answers is frustrating.
Integration Overhead
While Botpress offers an integration hub, many connections require custom webhooks and code to set up and maintain. Platforms that offer native, plug-and-play integrations can save significant development time.
1. FastBots.ai — Best Overall for Simplicity and Value
FastBots.ai takes the opposite approach to Botpress: instead of giving you a developer toolkit and wishing you luck, it gives you a working AI chatbot in under five minutes. Upload your data sources — PDFs, website URLs, documents — choose your AI model, and deploy across your website, WhatsApp, Telegram, Slack, Facebook Messenger, or Instagram.
There's no flow builder to learn, no code to write, and no AI Spend to worry about. Your chatbot trains itself on your content using retrieval-augmented generation (RAG) and answers customer questions in natural, conversational language.
Key Features
- Multi-channel deployment — website widget, WhatsApp, Telegram, Slack, Facebook Messenger, and Instagram
- Train on your own data — upload PDFs, Word documents, website URLs, sitemaps, or plain text
- Multiple AI models — access GPT-4o, Claude, Gemini, and more depending on your plan
- Live chat handoff — seamlessly escalate to human agents when needed (Business plan and above)
- Chat translation — automatically translate conversations for international customers
- White-label and reseller options — rebrand chatbots entirely for agency and reseller use
- Zapier AI Actions — connect to thousands of apps without writing code
- Auto retrain — your chatbot automatically re-crawls your data sources to stay current
Pricing
FastBots uses straightforward, flat-rate pricing with no hidden usage charges:
| Plan | Monthly Price | Annual Price | Chatbots | Messages/mo | Data (Characters) |
|---|---|---|---|---|---|
| Free | $0 | $0 | 1 | 50 | 500,000 |
| Essential | $39 | $390/year | 2 | 2,000 | 12,000,000 |
| Business | $89 | $890/year | 5 | 5,000 | 15,000,000 |
| Premium | $199 | $1,990/year | 10 | 10,000 | 20,000,000 |
| Reseller | $399 | $3,990/year | 30 | 30,000 | 25,000,000 |
Need more capacity? Add-ons are available: extra chatbots, messages, or data at $10/month each. Remove Branding is a $29/month add-on (included free on Premium and above). Custom Domain is $49/month.
Pros
- Genuinely no-code — anyone can build and deploy a chatbot without technical skills
- Predictable pricing — flat monthly rates, no surprise AI Spend charges
- Fast deployment — from signup to live chatbot in minutes, not days
- Broad channel support — six major messaging platforms plus website embed
- White-label ready — the Reseller plan offers full rebranding for agencies
Cons
- Less granular flow control — no visual flow builder for complex branching logic
- AI-first approach — relies on AI understanding rather than scripted decision trees
- No voice channel support — focused on text-based chat channels
Best For
Small to mid-sized businesses, agencies, and non-technical teams who want a powerful AI chatbot for their website and messaging channels without the development overhead.
2. Chatbase — Best for Quick AI-Powered Support Bots
Chatbase has carved out a niche as the "upload your data and go" chatbot builder. Like FastBots, it trains AI chatbots on your existing content — but its pricing model and feature set differ in important ways.
The platform lets you create AI agents from PDFs, website URLs, or plain text, then deploy them as website widgets or across messaging channels. It's straightforward to set up and works well for basic support automation.
Key Features
- AI chatbot from your data — train on websites, documents, and Q&A pairs
- Multiple AI models — experiment with GPT-4, Claude, and Gemini in the AI Playground
- AI Actions — connect to Slack, Zendesk, Calendly, and Stripe for task automation
- Multi-channel deployment — website, WhatsApp, Facebook Messenger, Instagram, Slack, and email
- Analytics dashboard — track chat volumes, user geography, and sentiment on higher plans
Pricing
Chatbase uses a credit-based system, which can make costs harder to predict:
| Plan | Price | Message Credits/mo | AI Agents |
|---|---|---|---|
| Free | $0 | 100 | 1 |
| Hobby | $40/mo | 2,000 | 1 |
| Standard | $150/mo | 12,000 | 2 |
| Pro | $500/mo | 40,000 | 3 |
| Enterprise | Custom | Custom | Custom |
Add-ons include custom domain ($59/month), branding removal ($39/month), and extra credits at $14 per 1,000.
Pros
- Very easy setup — upload content and your chatbot is ready quickly
- AI model flexibility — test different LLMs to optimise responses
- Clean, modern interface — intuitive for non-technical users
Cons
- Credit-based pricing — hard to forecast costs, especially with premium models (2,000 credits ≈ 100 GPT-4 responses)
- Limited agents on lower plans — you only get one AI agent on Free and Hobby
- Fewer native integrations — AI Actions are capped by plan tier
- Expensive add-ons — branding removal at $39/month and custom domain at $59/month add up quickly
Best For
Individuals and small teams who want a quick AI support bot without complex requirements. Best suited for straightforward Q&A automation rather than multi-step workflows.

3. Voiceflow — Best for Conversation Design Teams
Voiceflow sits between no-code simplicity and developer-grade flexibility. Its visual canvas lets you design conversation flows by dragging and connecting blocks — making it popular with conversation designers, product teams, and agencies building bots for clients.
Where Botpress feels like a developer tool with a visual layer, Voiceflow feels like a design tool with developer capabilities. That distinction matters if your team includes non-technical stakeholders who need to contribute to bot design.
Key Features
- Visual flow builder — drag-and-drop canvas for designing conversation logic
- Knowledge base — upload documents and URLs to power AI-driven answers
- Multi-LLM support — GPT-4, Claude, Gemini, Llama, plus bring-your-own-LLM
- Real-time collaboration — multiple team members can edit simultaneously
- Reusable components — build once, deploy across multiple agents
- Pro-code options — add API calls, custom JavaScript, and function libraries
- SOC 2 and ISO 27001 certified — enterprise-grade security
Pricing
| Plan | Price | Credits/mo | Agents |
|---|---|---|---|
| Starter (Free) | $0 | 100 | 2 |
| Pro | $60/mo per editor | 10,000 | 20 |
| Business | $150/mo per editor | 30,000 | Unlimited |
| Enterprise | Custom | Custom | Unlimited |
Additional editors cost $50/month each. Credits can be consumed quickly depending on the LLM used.
Pros
- Excellent visual designer — one of the best flow builders in the market
- Strong collaboration features — real-time editing, commenting, version history
- Flexible architecture — works for both no-code and pro-code teams
- Active community — good documentation and shared templates
Cons
- Per-editor pricing — costs escalate quickly for larger teams
- Credit consumption — some LLMs burn through credits faster than expected
- Learning curve — more complex than pure no-code platforms like FastBots
- Limited built-in channels — deployment to messaging platforms often requires custom integration
Best For
Conversation design teams, product managers, and agencies who need a powerful visual builder with collaboration features. Ideal if your workflow involves designing, prototyping, and iterating on conversation flows before deployment.
4. Tidio — Best for E-Commerce Live Chat
Tidio has built its reputation as the go-to chat solution for e-commerce businesses, particularly those on Shopify and WordPress. It combines live chat, rule-based chatbots ("Flows"), and an AI chatbot called Lyro into a single platform.
The strength here is the combination of human and automated support. Your team handles complex queries via live chat while Lyro deflects common questions automatically. For online shops that need both, it's a compelling package.
Key Features
- Live chat + AI chatbot — unified platform for human and automated support
- Lyro AI — conversational AI trained on your support content
- Flows automation — rule-based chatbots triggered by visitor behaviour
- E-commerce integrations — native Shopify, WordPress, WooCommerce, and BigCommerce plugins
- Visitor tracking — see who's browsing your site in real time
- Ticketing system — manage support requests beyond chat
Pricing
Tidio's pricing is split across base plans and AI add-ons, which complicates budgeting:
| Plan | Price (Annual) | Conversations/mo | Key Addition |
|---|---|---|---|
| Free | $0 | 50 | 50 Lyro conversations (one-time) |
| Starter | ~$24/mo | 100 | Basic analytics |
| Growth | ~$49/mo | 250–2,000 | Advanced analytics |
| Tidio+ | From $749/mo | Custom | Dedicated success manager |
| Premium | From $2,999/mo | 3,000+ Lyro included | Guaranteed AI resolution rate |
Lyro AI is an add-on starting at ~$32.50/month for 50 AI conversations. Branding removal costs ~$20/month extra on lower plans.
Pros
- Excellent for e-commerce — deep integrations with major shopping platforms
- Combines live chat and AI — one tool for both human and automated support
- Easy to install — particularly on Shopify and WordPress
- Visual flow builder — create rule-based automations without code
Cons
- Complex pricing — base plan + Lyro add-on + Flows add-on = hard to predict total cost
- Lyro is extra — the AI chatbot isn't included in most plans, adding $32–$289/month
- Forced upgrades — approaching 95% of conversation limits triggers automatic tier bumps
- Limited beyond chat — not designed for multi-channel deployment across WhatsApp, Telegram, etc.
- Expensive at scale — the Premium plan at $2,999/month is steep for SMBs
Best For
E-commerce businesses on Shopify or WordPress that want live chat with AI-powered automation. Less suitable if you need multi-channel chatbot deployment beyond your website.
5. Dialogflow CX — Best for Enterprise Voice and Contact Centres
Google's Dialogflow CX is the heavy hitter for enterprises building complex, multi-turn conversational experiences — particularly those involving voice channels. If you're building a contact centre IVR system or a sophisticated voice bot, Dialogflow CX is purpose-built for it.
That said, it's firmly a developer tool. There's no "upload your FAQ and go" experience here. You'll need technical expertise, Google Cloud familiarity, and patience for a substantial setup process.
Key Features
- Advanced flow-based design — visual builder for complex, multi-turn conversations
- Generative AI Playbooks — leverage Google's LLMs for dynamic responses
- Voice-first capabilities — built-in speech-to-text and text-to-speech
- Multi-language support — handle conversations in dozens of languages natively
- Google Cloud ecosystem — deep integration with other GCP services
- Enterprise compliance — SOC 2, GDPR, and other certifications via Google Cloud
Pricing
Dialogflow CX uses pure usage-based pricing with no fixed monthly plans:
| Component | Cost |
|---|---|
| Chat requests (Flows) | $0.007 per request |
| Chat requests (Playbooks/Generative) | $0.012 per request |
| Voice (Flows) | $0.001 per second |
| Voice (Playbooks) | $0.002 per second |
| Audio input (STT) | $0.001 per second |
| Audio output (TTS) | From $4 per 1M characters |
New customers receive a $600 credit for trial use (expires after 12 months).
Pros
- Powerful for voice — best-in-class voice bot capabilities
- Google's AI backbone — access to cutting-edge NLP and generative AI
- Massive scale — handles enterprise-level conversation volumes
- Rich ecosystem — integrates with the full Google Cloud platform
Cons
- Requires developers — not suitable for non-technical teams at all
- Complex setup — significant time investment to build and deploy
- Pure usage-based pricing — costs are entirely unpredictable until you're running
- Google Cloud dependency — you're locked into the GCP ecosystem
- No out-of-the-box simplicity — everything must be configured from scratch
Best For
Enterprises with development teams building voice bots, contact centre automation, or complex multi-turn conversational systems within the Google Cloud ecosystem. Not suitable for SMBs or non-technical teams.

6. Rasa — Best for Developer-Led, On-Premise Deployments
Rasa is the open-source framework that gives developers complete control over every aspect of their conversational AI. If Botpress is technical, Rasa is an order of magnitude more so — but the trade-off is unmatched flexibility and data privacy.
The open-source edition is free and can be self-hosted, making it the go-to choice for organisations that need on-premise deployment for compliance reasons (healthcare, finance, government). The commercial Rasa Platform adds enterprise features like Rasa Studio (a no-code interface) and Rasa Pro.
Key Features
- Fully open-source core — free to use, modify, and self-host
- Advanced NLU — train custom intent and entity models on your own data
- Dialogue management — machine learning-based conversation flow control
- On-premise deployment — full control over data and infrastructure
- CALM framework — Conversational AI with Language Models for generative capabilities
- Multi-channel support — WhatsApp, Slack, Facebook Messenger, Telegram, and more
- Rasa Studio (commercial) — no-code interface for business users
Pricing
| Edition | Cost | Notes |
|---|---|---|
| Open Source | Free | Self-hosted, community support only |
| Developer Edition | Free | 1 bot, 1,000 conversations/month, community support |
| Enterprise | Custom | Full platform, premium support, custom onboarding |
Enterprise pricing typically starts in the thousands per month, depending on scale and support requirements.
Pros
- Complete control — own your code, your data, and your deployment
- Privacy-first — on-premise hosting means data never leaves your servers
- Highly customisable — extend every component to your exact needs
- No vendor lock-in — open-source means you're never trapped
- Strong community — active developer community and extensive resources
Cons
- Requires developers — not a platform for non-technical users, period
- Significant setup time — weeks to months to build a production-ready bot
- Infrastructure costs — "free" open source still requires servers and DevOps
- No hosted option — you manage everything yourself (or pay for Enterprise)
- Enterprise pricing is opaque — no published prices for the commercial platform
Best For
Technical teams in regulated industries (healthcare, finance, government) that need on-premise deployment, full data control, and are willing to invest development resources. Not suitable for teams wanting quick deployment.
7. Landbot — Best for Conversational Landing Pages
Landbot takes a unique approach to chatbots: it treats them as interactive, conversational experiences rather than traditional support tools. Think of it less as a chatbot and more as a conversational form or interactive landing page.
The visual flow builder is genuinely intuitive — one of the easiest to use in the market — and the focus on web and WhatsApp chatbots makes it a strong choice for lead generation and qualification workflows.
Key Features
- Visual flow builder — intuitive drag-and-drop interface for conversational flows
- Conversational landing pages — replace static forms with interactive chat experiences
- WhatsApp Business integration — dedicated WhatsApp chatbot capabilities
- Landbot AI assistants — AI-powered responses alongside rule-based flows
- Native integrations — HubSpot, Airtable, Mailchimp, Stripe, Zapier, and more
- Custom branding — full control over chatbot appearance on Pro plans
- A/B testing — test different conversation flows to optimise conversion
Pricing
| Plan | Price (Monthly) | Chats/mo | AI Chats |
|---|---|---|---|
| Sandbox (Free) | €0 | 100 | None |
| Starter | €40/mo (~$46) | 500 | 100 |
| Pro | €100/mo (~$105) | 2,500 | 300 |
| WhatsApp Pro | €200/mo (~$220) | 1,000 WhatsApp | Included |
| Business | From €400/mo (~$440) | Custom | Custom |
Extra chats cost €0.05 each; extra AI chats cost €1.11 each. Euro-based pricing may fluctuate with exchange rates.
Pros
- Beautiful conversational UIs — creates engaging, app-like chat experiences
- Excellent flow builder — genuinely drag-and-drop, no learning curve
- Strong WhatsApp support — dedicated plan for WhatsApp Business
- Good for lead generation — built for qualification and conversion workflows
Cons
- Limited AI capabilities — AI assistants are relatively basic compared to RAG-based platforms
- Euro-based pricing — costs fluctuate for non-European businesses
- Expensive AI chats — €1.11 per extra AI chat adds up fast
- Narrow channel support — primarily web and WhatsApp, limited beyond that
- Not ideal for support — designed more for marketing and lead gen than customer service
Best For
Marketing teams and agencies that want to replace static web forms with conversational lead-generation experiences, particularly on web and WhatsApp channels.
8. ManyChat — Best for Social Media Marketing Automation
ManyChat isn't trying to be an all-purpose chatbot platform. It's laser-focused on social media marketing automation — and it's exceptionally good at it. If your primary channels are Instagram, Facebook Messenger, or WhatsApp, ManyChat is built specifically for you.
The platform excels at turning social media interactions into automated marketing funnels: someone comments on your Instagram post, ManyChat sends them a DM with a link. Someone messages your Facebook page, ManyChat qualifies them and books a call. It's marketing automation, not customer support.
Key Features
- Instagram DM automation — auto-reply to comments, stories, and DMs
- Facebook Messenger bots — automated funnels for Messenger marketing
- WhatsApp automation — broadcast campaigns and automated responses
- Visual flow builder — create marketing sequences with drag-and-drop
- Growth tools — QR codes, landing pages, website widgets, and comment triggers
- E-commerce integrations — Shopify, WooCommerce, and payment processing
- A/B testing — optimise message sequences for conversion
Pricing
| Plan | Price | Contacts | Key Features |
|---|---|---|---|
| Free | $0 | Up to 1,000 | Instagram + Messenger, 10 tags, 2 drip sequences |
| Pro | From $15/mo | 500+ (scales) | All channels, unlimited tags, analytics, branding removal |
| Elite | Custom | Custom | Dedicated onboarding, expert-crafted automations |
Pro pricing scales with contacts: 2,500 contacts = $25/month; 10,000 contacts = $65/month; 100,000 contacts = $435/month. AI features are an optional $29/month add-on.
Pros
- Best for social media — unmatched Instagram and Facebook automation
- Affordable entry point — Pro starts at just $15/month
- Easy to use — designed for marketers, not developers
- Proven results — widely used by D2C brands, creators, and agencies
Cons
- Social media only — not designed for website chatbots or customer support
- No AI knowledge base — can't train on your data like FastBots or Chatbase
- AI is an add-on — $29/month extra for AI features
- Contact-based pricing — costs grow linearly with your audience size
- Limited support capabilities — this is a marketing tool, not a help desk
Best For
Social media marketers, D2C brands, creators, and agencies running Instagram, Facebook, or WhatsApp marketing campaigns. Not suitable for customer service automation or website support.
Botpress Alternatives: Quick Comparison Table
Here's a side-by-side snapshot to help you shortlist:
| Platform | Starting Price | Best For | No-Code? | Multi-Channel | AI Knowledge Base |
|---|---|---|---|---|---|
| FastBots.ai | $39/mo | Overall simplicity + value | ✅ Yes | ✅ 6 channels | ✅ Yes |
| Chatbase | $40/mo | Quick AI support bots | ✅ Yes | ✅ 5 channels | ✅ Yes |
| Voiceflow | $60/mo per editor | Conversation design teams | Partial | Limited | ✅ Yes |
| Tidio | ~$24/mo (+ AI add-on) | E-commerce live chat | ✅ Yes | Limited | ✅ Lyro (add-on) |
| Dialogflow CX | Usage-based | Enterprise voice/contact centres | ❌ No | ✅ Many | ❌ Build your own |
| Rasa | Free (open source) | Developer-led, on-premise | ❌ No | ✅ Many | ❌ Build your own |
| Landbot | €40/mo (~$46) | Conversational landing pages | ✅ Yes | Web + WhatsApp | Partial |
| ManyChat | $15/mo | Social media marketing | ✅ Yes | Social channels | ❌ No |
How to Choose the Right Botpress Alternative
Choosing the right platform depends on your specific situation. Here's a decision framework:
Choose FastBots.ai if...
You want to get a chatbot live quickly, don't have developers, need multi-channel deployment, and value predictable pricing. It's the closest thing to "plug and play" in the AI chatbot space.
Choose Chatbase if...
You need a simple AI support bot trained on your content and don't require advanced automation or extensive channel support.
Choose Voiceflow if...
Your team includes conversation designers who need a visual canvas, collaboration features, and the flexibility to add custom code when needed.
Choose Tidio if...
You run an e-commerce store on Shopify or WordPress and want live chat combined with AI automation in a single tool.
Choose Dialogflow CX if...
You're an enterprise with developers, need voice bot capabilities, and are already invested in the Google Cloud ecosystem.
Choose Rasa if...
You have a development team, need on-premise deployment for compliance, and want complete control over your conversational AI.
Choose Landbot if...
Your goal is conversational lead generation — replacing static forms with interactive chat experiences on your website or WhatsApp.
Choose ManyChat if...
Social media marketing is your primary focus and you need automated DM funnels on Instagram, Facebook, or WhatsApp.
Frequently Asked Questions
What is the best free alternative to Botpress?
FastBots.ai offers a free plan with 1 chatbot and 50 messages per month — enough to test the platform and see if it fits your needs. Rasa's open-source edition is also free, but requires significant technical expertise to set up and maintain. Chatbase and ManyChat offer free tiers as well, though with tighter limitations.
Is Botpress good for beginners?
Botpress has improved its user interface, but it still has a steeper learning curve than alternatives like FastBots.ai, Tidio, or ManyChat. If you don't have coding experience, you may find Botpress frustrating for anything beyond basic setups. Platforms like FastBots let you build a working chatbot in minutes without touching code.
How much does Botpress actually cost?
Botpress's Plus plan starts at $89/month, but the "AI Spend" component adds variable costs on top. Your real bill depends on conversation volume and AI model usage. The Team plan jumps to ~$495/month. For predictable pricing, FastBots.ai's plans start at $39/month with everything included.
Can I use Botpress without coding?
You can build basic chatbots with Botpress's visual flow builder without coding. However, for advanced automations, custom integrations, and complex workflows, JavaScript knowledge is typically required. If you want a truly no-code experience, FastBots.ai, Chatbase, Tidio, and ManyChat are better options.
Which Botpress alternative is best for WhatsApp?
For dedicated WhatsApp chatbots, FastBots.ai and Landbot both offer strong WhatsApp integration. FastBots provides WhatsApp as one of its standard channels with no extra cost, while Landbot has a dedicated WhatsApp Pro plan at €200/month. ManyChat also supports WhatsApp for marketing campaigns.
What's the cheapest Botpress alternative?
ManyChat's Pro plan starts at just $15/month, making it the cheapest paid option — but it's limited to social media channels. For a full-featured AI chatbot platform, FastBots.ai at $39/month offers the best value with multi-channel support and AI knowledge base training included.
Is there an open-source Botpress alternative?
Yes — Rasa is the leading open-source alternative. It offers a free, self-hosted framework for building conversational AI with full control over code and data. However, it requires significant developer expertise and infrastructure to deploy and maintain.
Can I migrate from Botpress to another platform?
Most chatbot platforms don't offer direct Botpress migration tools. However, your knowledge base content (documents, FAQs, website URLs) can typically be re-uploaded to platforms like FastBots.ai or Chatbase. Conversation flows built in Botpress's visual builder would need to be recreated on the new platform.
Wrapping Up
Botpress is a capable platform — but its developer-centric approach, unpredictable AI Spend pricing, and setup complexity make it a poor fit for many teams. The alternatives we've covered each solve specific problems better than Botpress does.
If you're after the shortest path from idea to live chatbot — with transparent pricing, genuine no-code simplicity, and deployment across every major channel — give FastBots.ai a try. The free plan lets you build your first chatbot in minutes, no credit card required.