Get a production-ready AI chatbot or voice agent built on GPT, deployed to your website, WhatsApp, Slack or phone lines — crafted end-to-end by an experienced London-based AI development studio.
I Will Build and Deploy a Custom AI Chatbot or Voice AI Agent
Strategy consultation plus a scoped solution plan for your AI chatbot or voice agent project.
- 1-hour discovery and strategy consultation
- Written solution plan tailored to your requirements
- Channel recommendation (website, WhatsApp, voice, etc.)
- Technology stack and integration outline
- Prompt and conversational flow blueprint
- Clear next-steps roadmap for full build
Full design, build, and deployment of a single-channel AI chatbot or voice agent.
- Everything in Starter, plus full end-to-end build
- Single-channel deployment (website, WhatsApp, Slack, Messenger, or phone)
- GPT-powered conversational flows with brand-aligned prompts
- RAG or fine-tuning on your own data for accurate, on-brand replies
- Human hand-off routing and basic analytics dashboard
- Video walkthrough and launch support
Enterprise-grade multi-channel AI system with voice agents, advanced integrations, and full post-launch tuning.
- Everything in Boost, plus multi-channel deployment
- Voice IVR or phone agent via Twilio, VAPI, Retell AI, or Synthflow
- Advanced RAG pipeline and secure fine-tuning across your full dataset
- Payment processing, CRM, or third-party system integrations
- Full analytics dashboard, human hand-off, and escalation logic
- Post-launch refinement sessions and team training
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Key details about this service to help you decide. Generated by Zinn Hub, not the seller.
Value Position
AI Stack
Deployment Channels
Data & Brand Alignment
Turnaround & Process
What You'll Receive
Full Description
Your customers expect instant, accurate answers around the clock. Whether that means a chat widget on your website, a WhatsApp bot that qualifies leads overnight, or a voice agent that handles inbound calls and processes payments — this service delivers a fully built, tested, and deployed AI solution matched precisely to your business requirements.
Zinn Digital™ is a London-based AI and web development studio with over ten years of experience across machine learning, conversational AI, and production software. We have delivered more than 100 live bots across SaaS, e-commerce, and fintech — not prototypes, but systems handling real customers at scale.
**What You Receive**
Every engagement is scoped during a dedicated discovery call so the solution fits your stack and your goals. Depending on the tier you choose, delivery spans from a focused consultation and proof-of-concept all the way through to a fully integrated, fine-tuned multi-channel AI system.
Core capabilities we bring to each build include:
— Website, WhatsApp, Slack, and Messenger chatbots powered by GPT
— Natural-language voice IVR and phone agents via Twilio, VAPI, Retell AI, Synthflow, or SIP
— Secure fine-tuning and Retrieval-Augmented Generation (RAG) so every reply reflects your brand, products, and policies
— Conversational flow design, prompt engineering, and UX copy
— Dashboards, analytics, and human hand-off routing
— Post-launch tuning and training
**How It Works**
1. Discovery — we map your goals, audience, and existing systems
2. Prototype — a working demo you can test and share internally
3. Refinement — iteration based on your feedback
4. Launch & Training — deployment to your chosen channel plus a walkthrough so your team can manage it confidently
Clear milestones and video demos keep you informed throughout. Our average turnaround for a standard single-channel bot is one week.
**Who This Is For**
This service suits founders, product teams, customer-support leads, and marketing managers who need AI automation that actually works in production — not a no-code toy. If you run an e-commerce store, a SaaS platform, a fintech product, or any business fielding repetitive inbound queries or calls, a well-built AI agent will save your team significant time and cost.
**Before You Order**
Please message us with a brief description of your use case before placing an order on the larger tiers. This ensures we scope the work accurately and that your project is a strong fit. We will respond promptly and outline a clear plan.
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Compare Packages
| Feature | Starter | Boost | Premium |
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
| Revisions | 1 | 2 | 3 |
| 1-hour discovery and strategy consultation | ✓ | ✕ | ✕ |
| Written solution plan tailored to your requirements | ✓ | ✕ | ✕ |
| Channel recommendation (website, WhatsApp, voice, etc.) | ✓ | ✕ | ✕ |
| Technology stack and integration outline | ✓ | ✕ | ✕ |
| Prompt and conversational flow blueprint | ✓ | ✕ | ✕ |
| Clear next-steps roadmap for full build | ✓ | ✕ | ✕ |
| Everything in Starter, plus full end-to-end build | ✕ | ✓ | ✕ |
| Single-channel deployment (website, WhatsApp, Slack, Messenger, or phone) | ✕ | ✓ | ✕ |
| GPT-powered conversational flows with brand-aligned prompts | ✕ | ✓ | ✕ |
| RAG or fine-tuning on your own data for accurate, on-brand replies | ✕ | ✓ | ✕ |
| Human hand-off routing and basic analytics dashboard | ✕ | ✓ | ✕ |
| Video walkthrough and launch support | ✕ | ✓ | ✕ |
| Everything in Boost, plus multi-channel deployment | ✕ | ✕ | ✓ |
| Voice IVR or phone agent via Twilio, VAPI, Retell AI, or Synthflow | ✕ | ✕ | ✓ |
| Advanced RAG pipeline and secure fine-tuning across your full dataset | ✕ | ✕ | ✓ |
| Payment processing, CRM, or third-party system integrations | ✕ | ✕ | ✓ |
| Full analytics dashboard, human hand-off, and escalation logic | ✕ | ✕ | ✓ |
| Post-launch refinement sessions and team training | ✕ | ✕ | ✓ |
Portfolio
Examples of the seller's work related to this Zinn.
Build and Deploy a Custom AI Chatbot or Voice AI Agent
Build and Deploy a Custom AI Chatbot or Voice AI Agent
Extra Information
Why Choose Me
Tools I Use
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Frequently Asked Questions
Yes, please do. Because every AI chatbot and voice agent project has a different scope, a brief conversation before you order lets us confirm the right tier, clarify what you need to provide, and ensure delivery timelines are realistic for your use case. You can reach out via the Zinn Hub message system.
We build a wide range of solutions including customer support bots, lead-qualification bots, demo-booking assistants, e-commerce helpers, and natural voice IVR/phone agents that can route calls and process payments. Each project is scoped individually based on your goals and data.
For chat, we deploy on websites, WhatsApp, Slack, and Facebook Messenger. For voice, we work with Twilio, VAPI, Retell AI, Synthflow, and SIP-based systems. We recommend the best fit during the discovery phase.
At minimum, a description of your business, the tasks you want the AI to handle, and your preferred channel(s). For fine-tuning and RAG, providing existing documentation, FAQs, product information, or access to relevant data will significantly improve accuracy and relevance of responses.
Every project follows four stages: Discovery (requirements and scoping), Prototype (initial working version), Refinement (feedback and adjustments), and Launch & Training (deployment and handover). You receive video demos at key stages so you can see progress clearly.
Post-deployment support is available to address issues, fine-tune the AI, and provide training. A monthly maintenance package can be added for long-term updates, improvements, and new feature additions — ask about this when discussing your project.
Data privacy and security are built into every project. We use secure protocols for all integrations and handle sensitive information with strict confidentiality. Additional security measures — such as data isolation, access controls, or compliance-specific handling — can be implemented based on your requirements.
Not at all. If you have a clear idea, great — we can move quickly. If you are still exploring options, the discovery consultation is specifically designed to help clarify the best approach, technology stack, and scope for your situation.
Customer Reviews
See what our customers say about this Zinn
Neil built us a great app with voice AI capabilities. Very excited!
This is the second time Neil has helped us with our web application. He delivered another great automation functionality.
This was great work by Neil, launching my app in less than a month!
It's so cool to have my new chatbot fetch messages from Airbnb and Booking and respond automatically!
I've rarely found someone as knowledgeable about the world of AI as Neil!
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