Custom AI apps & plugins

Your business.
Their AI.
Connected.

Give customers a useful way to explore your services, find answers and take the next step. We build branded business tools for ChatGPT, Claude and other compatible AI assistants.

Projects from €4,500. Free consultation. Fixed quote before you pay.

A useful connection.Our cheerful caveman mascot holding a large electrical plug, ready to connect
Same instincts. New connections.
Built around your business
ChatGPTClaudePerplexityGrokOther compatible assistants
Explore platform compatibility

Start with a job to do

Something your customers
can actually use.

A tool is worth building when it helps someone make a decision, find reliable information or complete a recurring task. We start there.

01 / FIND & COMPARE

Help people choose.

Find a suitable property, compare services or narrow a product range using your business information.

Example: a service finder that explains which option fits.

02 / EXPLAIN & GUIDE

Make expertise useful.

Search approved guides, explain specialist information and point people to the relevant source.

Example: a course or knowledge-library assistant.

03 / ASSESS & CALCULATE

Give a practical next step.

Turn a set of questions or business rules into a useful assessment, calculation or improvement plan.

Example: a readiness checker with evidence and clear limits.

Internal team tools and connections to existing systems can also be scoped. These are example projects, not claims about work delivered for clients.

The service behind the conversation

Your information.
Your rules.
A useful tool.

The app or plugin is how someone reaches the service. The useful service is what we build around your business.

Your business
Information & systems
Your tool
Logic & useful results
Their assistant
A conversation

MCP is the shared connection that lets an assistant request information or use the tool. Where supported, customers can see a branded interface inside the conversation.

The same underlying service can also power a website experience. We agree that extra interface as part of the project.

Choose where it needs to work

Built for the assistants
your customers use.

ChatGPT and Claude are included in the starting scope. We can assess other assistants too. Your proposal names the platforms, features and devices we will test.

App & interactive interface

ChatGPT

A business tool connected through MCP, with a branded interface where supported. Public distribution follows OpenAI’s review process.

Connector & interactive interface

Claude

A connected business tool with an interactive interface using the shared MCP Apps standard. We test the agreed workflow in Claude.

Custom connector · separately scoped

Perplexity

Connect supported business tools and information through a custom remote connector. Account access and supported features are checked before we quote.

Custom connector · separately scoped

Grok

Connect your service through Grok’s supported custom MCP connector route. We confirm the account requirements and workflow before including it.

A connection and an interactive interface are different things. We do not promise identical screens in every assistant, universal compatibility or a directory listing.

Platform support and source notes

Support checked on 11 October 2026. See OpenAI’s MCP Apps documentation, Claude’s interactive connectors, Perplexity’s custom remote connectors and Grok’s connectors. We recheck support when scoping your project.

A clear place to start

A focused first version.
A price you can plan around.

The starting price is for a small, useful tool with an agreed scope. Send us your outline first so we can prepare for a useful conversation.

Custom AI app or plugin

From €4,500

One customer task. One information source.
ChatGPT and Claude connections.

  • Planning, design and development
  • A simple branded interface
  • Testing on agreed platforms and devices
  • Usage safeguards and clear error handling
  • Source code, documentation and handover
  • One revision round and 30 days of defect fixes
Tell us what you have in mind

Final scope, applicable taxes, hosting, usage and support costs are confirmed in your written proposal. Ongoing support is optional.

What changes the price?

These are scope questions, not automatic add-on charges. We work through them before quoting.

More tasks or more information

Several workflows, large or messy content collections, and information that changes frequently need more design and testing than one focused task.

Accounts, saved results or payments

Customer sign-in, private information, saved histories, subscriptions and payments introduce extra screens, permissions and operating requirements.

Connections that take action

Booking appointments or changing records in a CRM needs more work than reading information. Each system and action is scoped separately.

More platforms or a website app

Additional assistants, devices and a separate website interface need their own integration and testing. We agree which are useful for your audience.

Public submission and ongoing operation

Directory submissions, demonstration materials, review responses, hosting and maintenance are defined in the proposal. Platform approval is outside our control.

Your information and systems affect the work as much as the feature list. We quote against the brief we agree together.

Built by us, for our own studio

Website inspection.
Inside ChatGPT.

Submitted to OpenAI for review

Our own AI Visibility Studio tool checks a public page, explains the evidence and helps the user plan practical improvements.

The last confirmed status is “In review”. It is not advertised as approved or publicly available. Desktop workflows and automated checks have been tested; native iPhone testing remains outstanding.

Explore the beginner guides
01

Inspect the returned page

Headings, links, image names, alternative text, structured data and other basic signals from the public HTML.

02

Understand the evidence

Confirmed problems, suggestions and checks the tool could not complete are kept separate.

03

Make a useful plan

Platform-specific guidance, beginner explanations and article search connected to the studio’s content.

04

Return and compare

Saved inspections and comparisons help users revisit a page after making changes.

Before anyone pays

A better brief.
A better conversation.

You do not need a technical specification. Tell us about your business, who the tool is for and the job you want it to do.

  1. 01

    Send your outline.

    Your business, idea, preferred assistants, systems, budget and timing. We review it before we meet.

  2. 02

    Talk it through.

    A free consultation to check the fit, ask useful questions and agree a realistic first version.

  3. 03

    Agree the quote.

    A written scope, fixed build price and running costs. Payment follows your acceptance of the proposal.

If the project needs a separate paid discovery stage, we explain and agree that after the initial consultation.

Before we build

Your questions,
answered.

What is an AI app or plugin?

It is a useful tool connected to an AI assistant. A customer might search your services, compare options or complete an assessment without leaving the conversation. We build the business service behind it, along with the agreed interface and connections.

What does MCP mean?

MCP stands for Model Context Protocol. It is a shared way for an AI assistant to request information or use tools from another service. Your business logic and information live in the service we build. MCP provides the connection.

Will it work in ChatGPT, Claude, Perplexity and Grok?

We can scope connections for these assistants where their current connector support and your account allow it. The starting package includes ChatGPT and Claude. Additional assistants are agreed in the proposal. A working connection does not mean every assistant can display the same branded interface.

What does the €4,500 starting price include?

A focused first version: one customer task, one agreed information source, a simple branded interface, and ChatGPT and Claude connections. Planning, development, agreed testing, documentation, source-code handover, one revision round and 30 days of fixes for defects in the agreed work are included. We confirm the full scope, any applicable taxes and ongoing costs before you pay.

What makes a project cost more?

More workflows, difficult or incomplete data, additional systems, customer accounts, saved histories, payments, actions that change records, and extra assistants or device testing all add work. A separate website app and public directory submission support are also scoped explicitly.

Do we need to meet before I pay?

Yes. Send a short business and project outline first. We review it before a free consultation, then provide a written scope and fixed quote. You only pay after accepting the proposal. If a complex project needs paid discovery, we explain and agree that separately.

Do I own the code, and are there monthly costs?

You receive the project source code and handover documentation. Hosting, third-party services and licensed components have their own costs and terms. We set out the running costs and responsibilities in the proposal. Ongoing support is optional; it is not unlimited or included forever.

Will you get us approved or recommended by an AI platform?

We can prepare submission materials and support an agreed review process. Each platform controls its own approval, availability and directory placement. A plugin does not guarantee recommendations, AI citations, visitors or sales.

Can the same service work on our website?

Often, yes. The underlying business service can support a website experience as well as AI assistant connections. A website interface is additional design, development and testing, so it is included only when agreed in the scope.

Is your own website-inspection plugin publicly available?

The last confirmed status is submitted to OpenAI for review. It should not be described as approved or publicly available. Desktop workflows and automated checks have been tested; native iPhone testing remains outstanding. This is our own studio project, not a client result.

Let’s start with the job

What would make
your business
more useful?

Tell us a little about the business and what you have in mind. We will review your outline before arranging a conversation.

Discuss your app or plugin

Projects from €4,500. No payment before an agreed proposal.