Get a professionally built AI agent powered by OpenAI Agent SDK or Google ADK — designed to automate tasks, handle conversations, and integrate with your existing tools and platforms.
I Will Build a Custom AI Agent Using OpenAI or Google ADK
A single, focused AI agent built to your specification — fast and clean, no extras.
- Simple AI agent built with OpenAI Agent SDK or Google ADK
- Tailored to one defined task or conversation flow
- Delivered as working, deployment-ready code
- Built on your choice of framework (OpenAI or Google ADK)
- Order chat support throughout the build
- Guidance on API key setup if required
An enhanced agent with multi-language support and user authentication — ready for real users.
- Everything in Starter Agent
- Multi-language support so your agent communicates in your users' preferred language
- Secure user authentication integrated into the agent flow
- Platform integration (WhatsApp, Slack, or WordPress)
- Customisable agent personality, tone, and response behaviour
- Delivered as deployment-ready code with integration documentation
A fully integrated, enterprise-ready AI agent connected to your CRM, database, and communication channels.
- Everything in Boost Agent
- Full CRM and/or database integration for real-time data retrieval and updates
- Custom API calls and cross-platform workflow automation
- Voice call support or advanced multi-channel deployment (WhatsApp, Slack, WordPress)
- Support for existing pretrained models or proprietary datasets
- Priority order chat support and detailed delivery documentation
Request a Custom Offer
Log In to Request a Custom Offer
Create a free account or log in to request a personalised offer from this Zinner.
Log In / RegisterAsk a Pre-Sale Question
Log In to Ask a Question
To reduce platform spam, pre-sale messages can only be sent by logged-in users.
Create a free account or log in to message this Zinner directly.
Log In / RegisterAt a Glance
Key details about this service to help you decide. Generated by Zinn Hub, not the seller.
Value Position
Frameworks Supported
Base Delivery Time
Platform Reach
Entry Price Point
What You'll Receive
Full Description
If your business is ready to harness the real power of AI automation, a custom-built intelligent agent is one of the most impactful investments you can make. This service delivers production-ready AI agents built on two of the most capable frameworks available today: OpenAI Agent SDK and Google ADK — engineered to reason, plan, act, and communicate on your behalf.
Whether you need a simple agent to handle a specific task quickly, or a fully integrated solution connected to your CRM, WhatsApp, Slack, or WordPress site, this service scales to match your ambition. Every agent is built by a London, England-based team with hands-on experience across a wide range of industries and use cases.
**What You Can Build**
From customer support bots and lead qualification agents to appointment booking assistants, phone call automation, and multi-platform messaging integrations — the possibilities are broad. Agents can be connected to your existing databases, APIs, and third-party services to enable real-time data retrieval and intelligent decision-making. Voice calling, WhatsApp, and Slack integrations are all within scope. Need something bespoke? Custom workflows, complex API chains, and cross-platform communication can all be discussed via the order chat.
**How It Works**
Once your order is placed, share your project requirements through the order chat. The more detail you provide — your platform, your goals, your existing tools — the faster work can begin. If anything is unclear, the team will follow up directly. You will receive your agent as deliverable code or a deployment-ready package, depending on the agreed scope.
**Frameworks & Flexibility**
Both OpenAI Agent SDK and Google ADK are cutting-edge agent frameworks designed for reliability and extensibility. If you have existing pretrained models or proprietary datasets, those can be incorporated. If you need an OpenAI API key and are unsure how to obtain one, guidance is available.
**Who This Is For**
This service is ideal for business owners, product managers, developers, and startups who want to automate workflows, improve customer interactions, or explore AI-driven experiences — without needing to build everything from scratch themselves. It suits e-commerce, healthcare, finance, and virtually any sector that benefits from intelligent automation.
**Why Zinn Digital**
Zinn Digital is a specialist digital solutions team based in London, England, focused on delivering practical, working AI systems — not demos or prototypes. The focus is on agents that genuinely perform in real business environments, built to your specification and ready to deploy.
Zinner Quality Guarantee
Every Zinner is reviewed and approved before joining the platform.
All services are backed by our quality assurance commitment.
Your payment is protected until you approve the delivered work.
Compare Packages
| Feature | Starter Agent | Boost Agent | Premium Agent |
|---|---|---|---|
| Delivery Time | 2 days | 7 days | 14 days |
| Revisions | 0 | 1 | 2 |
| Simple AI agent built with OpenAI Agent SDK or Google ADK | ✓ | ✕ | ✕ |
| Tailored to one defined task or conversation flow | ✓ | ✕ | ✕ |
| Delivered as working, deployment-ready code | ✓ | ✕ | ✕ |
| Built on your choice of framework (OpenAI or Google ADK) | ✓ | ✕ | ✕ |
| Order chat support throughout the build | ✓ | ✕ | ✕ |
| Guidance on API key setup if required | ✓ | ✕ | ✕ |
| Everything in Starter Agent | ✕ | ✓ | ✕ |
| Multi-language support so your agent communicates in your users' preferred language | ✕ | ✓ | ✕ |
| Secure user authentication integrated into the agent flow | ✕ | ✓ | ✕ |
| Platform integration (WhatsApp, Slack, or WordPress) | ✕ | ✓ | ✕ |
| Customisable agent personality, tone, and response behaviour | ✕ | ✓ | ✕ |
| Delivered as deployment-ready code with integration documentation | ✕ | ✓ | ✕ |
| Everything in Boost Agent | ✕ | ✕ | ✓ |
| Full CRM and/or database integration for real-time data retrieval and updates | ✕ | ✕ | ✓ |
| Custom API calls and cross-platform workflow automation | ✕ | ✕ | ✓ |
| Voice call support or advanced multi-channel deployment (WhatsApp, Slack, WordPress) | ✕ | ✕ | ✓ |
| Support for existing pretrained models or proprietary datasets | ✕ | ✕ | ✓ |
| Priority order chat support and detailed delivery documentation | ✕ | ✕ | ✓ |
Portfolio
Examples of the seller's work related to this Zinn.
Build a Custom AI Agent Using OpenAI or Google ADK
Build a Custom AI Agent Using OpenAI or Google ADK
Extra Information
Why Choose Me
Tools I Use
Perfect For
Frequently Asked Questions
These are powerful agent development frameworks provided by OpenAI and Google respectively. They allow developers to build intelligent AI agents capable of reasoning, planning, taking actions, and integrating with external tools and APIs to complete tasks autonomously on your behalf.
As much detail as you can about your goal — what the agent should do, what platforms or tools it needs to connect to, and any existing systems you use (CRM, database, messaging platform, etc.). If anything is unclear after your order, the team will follow up via order chat before work begins.
If your agent uses OpenAI's models, yes — you will need your own API key, as ongoing usage costs are billed directly to your account. If you are unsure how to obtain one, guidance is available as part of the service.
Yes. Platform integrations including WhatsApp, Slack, and WordPress are available within the Boost and Premium tiers. Voice call support is available as an add-on. Let the team know your preferred platform in your project brief.
Absolutely. If you have existing datasets, pretrained models, or a knowledge base you want the agent to draw from, these can be incorporated into the build so the agent aligns precisely with your business context.
The Starter tier does not include revisions — the scope is agreed upfront. Boost includes one revision round and Premium includes two. Additional revision rounds can be purchased as an add-on. Revisions apply to adjustments within the original agreed scope.
Yes. Security is a priority throughout the build. Robust measures are implemented to protect user data and maintain privacy compliance, including secure user authentication where included in your chosen tier.
The service is adaptable across industries including e-commerce, healthcare, finance, hospitality, and more. Agents are built to match your specific use case, language requirements, and operational context.
Customer Reviews
See what our customers say about this Zinn
Amazing work, thank you again!
These guys are the best. So many ideas for GPT and they can do it all. I'm already hiring them for site number 2 and about to do many, many more.
Thanks for the consulting session.
This is my second order with them. I'm hoping to have many more soon.
Guru Neilnk is an absolute professional in AI Development! His code expertise and attention to detail are outstanding. Working with him was seamless due to his quick responsiveness and proactive communication. Highly RECOMMEND!
Only logged in customers who have purchased this product may leave a review.
