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Trainior AI Connector · MCP

Ask ChatGPT, Claude or Gemini about your business.

Connect the AI you already use to Trainior. Ask in your own words how much you took in, which members might leave, how busy you are right now, and get the answer from your own data, with no exports and no spreadsheets.

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Add-on at €3.99 a month, incl. VAT · Read-only · For the business owner

What MCP is

A safe bridge between your AI and Trainior

MCP (Model Context Protocol) is an open standard that lets AI apps such as ChatGPT, Claude and Gemini connect to other services. Instead of pasting numbers into the chat, the AI asks the service for what it needs, at the moment you ask.

Trainior runs its own MCP server at mcp.trainior.com. You add that address to your AI app once, sign in with your Trainior account and approve access. From then on the AI reads your business's numbers when you ask.

Your password never reaches the AI app: you sign in on Trainior's own page, and the app receives an access key, not your password. And every tool Trainior gives it is read-only.

You ask“How much did we take in this month?”
ChatGPTClaudeGeminiChatGPT, Claude or GeminiWorks out what it needs and asks Trainior
With your Trainior account
Trainior MCPmcp.trainior.comChecks who is asking and for which business
Read-only
Your business's dataMembers, bookings, check-ins, payments, expenses, orders
How it works

What happens when you ask a question

  1. 1

    You ask

    You write in the chat as you would ask a colleague: “Which members haven't come in for the last two weeks?”

  2. 2

    The AI asks for the data

    The AI app sees that the answer lives in Trainior and calls the right tool, here the members at risk of leaving, for the period you asked about. Depending on its settings, it may ask your permission first.

  3. 3

    Trainior checks and answers

    Trainior confirms who is asking, that the business is yours and that the add-on is on. Then it sends only what is needed: numbers, dates and a few names.

  4. 4

    You get the answer

    The AI writes the answer and you carry on: a comparison with last month, ideas to keep members, a message for the ones who drifted away.

What you can ask

Your business's numbers, one question away

Trainior gives your AI read-only tools for the topics below. The AI combines them by itself, so ask freely, in your own words.

Today at a glance

Total and active members, memberships ending soon, today's bookings, check-ins and today's birthdays.

“How are we doing today?”

How busy it is now

How many checked in this hour and today, which hour is the busiest and how close to it you are.

“Is it busy right now?”

Members who might leave

How many memberships end soon and how many active members have stopped coming, with a few names of each.

“Who hasn't been in for three weeks?”

New trials

How many people started a trial recently, with names so you can follow up.

“Who came in for a trial last month?”

Revenue

What you collected over recent days, in how many payments and from how many members.

“How much did we collect in the last 30 days?”

Monthly profit

Revenue, expenses and profit for any month you ask about, if you track expenses in Trainior.

“Did we make a profit in October?”

Monthly expenses

A month's expenses as net, VAT and gross.

“How much did we spend in September?”

Orders

Membership and shop orders: how many, by kind and status, and what they are worth.

“How many shop orders did we get last month?”

Before you start

Three things and one address

  1. 1An owner's Trainior accountThe business owner connects, with their own account. Access for staff isn't available yet.
  2. 2The AI Connector add-onAdd it to your package from “Trainior subscription” in your account settings: €3.99 a month, incl. VAT.
  3. 3An AI app that takes connectorsChatGPT, Claude or Gemini, on an account that allows your own connectors. See below what each one needs.
Trainior's addresshttps://mcp.trainior.com/mcp
Setup guide

Step by step, for each app

You connect once, in a few minutes. The simplest route today is Claude, which takes the connector even on a free account. Menu names may differ slightly, as these apps change often.

ChatGPT

by OpenAI

Connect

  1. On chatgpt.com open “Plugins” and click “+” → “Add custom MCP server”.
  2. Give it a name, such as Trainior. In “Server URL” enter https://mcp.trainior.com/mcp and choose “OAuth” for authentication. No client ID is needed.
  3. Read OpenAI's warning, tick “I understand and want to continue” and click “Create as a plugin”.
  4. Install Trainior from your personal plugins. The first time it needs data, ChatGPT opens Trainior's page: sign in and approve access.
What you need
A ChatGPT Business, Enterprise or Edu plan, and a computer: you can only add it on chatgpt.com, not on mobile. On Business, only workspace admins and owners can add their own connectors; on Enterprise and Edu, so can members the admin allows.
In a chat
In a new chat type @, pick Trainior and ask your question.
Disconnect
“Settings” → “Plugins” → Trainior, and disconnect the account. Changing its permissions alone does not stop access.

In ChatGPT, custom MCP connectors are now called “Plugins”, with no country restrictions. If you don't see “Add custom MCP server”, your account isn't allowed to add them: ask your workspace admin.

Claude

by Anthropic

Connect

  1. On claude.ai or in Claude Desktop, open “Customize” → “Connectors” and click “+ Add” → “Add custom connector”.
  2. Give it a name, such as Trainior. In “MCP server URL” enter https://mcp.trainior.com/mcp and click “Continue”.
  3. Under “OAuth client”, keep the recommended “Use Claude's published identity”. No client ID or secret is needed. Click “Add”.
  4. Click “Connect”. Trainior's page opens: sign in with your account and approve access.
  5. Done. The connector now works on claude.ai, in Claude Desktop and in the Claude mobile apps.
What you need
A Claude account: the free one works, for one custom connector, as does any paid plan. On Team and Enterprise, the organisation's Owner adds the connector first under “Organization settings” → “Connectors”, then you click “Connect”.
In a chat
Click “+” at the bottom left of the chat, open “Connectors” and switch Trainior on. The first time Claude uses a tool it asks your permission, and you can allow it for good.
Disconnect
“Customize” → “Connectors”: find Trainior and remove it (“Remove”).

Gemini

by GoogleUS only for now

Connect

  1. On gemini.google.com open “Settings” → “Connected Apps” and, under “Custom apps”, click “Add a custom app”.
  2. Enter the address https://mcp.trainior.com/mcp.
  3. Click “Show more” next to “Advanced features”. For Client ID enter gemini-app, and for Client secret any word: it isn't used.
  4. Click “Next”. Trainior's page opens: sign in with your account and approve access.
What you need
A personal Google account (not work or school), age 18 or over, located in the US, Gemini in English and “Keep Activity” on. No subscription needed. You add it on gemini.google.com, on a computer or in a phone's browser.
In a chat
Type @ in the chat and pick Trainior. Once added, it also works in the Gemini mobile app.
Disconnect
“Settings” → “Connected Apps” → “Custom apps” → “More details”: “Disconnect” to pause it or “Remove app” to remove it for good.

Google currently offers custom apps in Gemini only to users in the US, so the option doesn't show in Greece yet. Once it opens here, you connect with these steps.

Security and privacy

You decide what the AI sees.

Read-only

The AI reads numbers. It cannot change, delete or send anything through Trainior.

Your password stays with Trainior

You sign in on Trainior's page and approve access explicitly. The AI app never sees your password.

Only your business

Every question is checked: who is asking, for which business, and whether the add-on is on.

Only what's needed

Numbers, totals, dates and a few member names. Never phone numbers, emails, addresses, notes, questionnaires or health data.

Owner only

The business owner connects, with their own Trainior account.

Disconnect any time

Remove the connector from the AI app and its access to Trainior stops.

€3.99 a month, incl. VATAI Connector is an add-on on top of your package. Your ChatGPT, Claude or Gemini subscription is separate and billed by the company that provides it.Setup guide

Frequently asked questions

What is MCP?

The Model Context Protocol is an open standard started by Anthropic and now supported by ChatGPT, Gemini and many other apps. It defines how an AI app connects to a service and asks it for data, once the user has signed in and approved access.

Which address do I enter in the AI app?

https://mcp.trainior.com/mcp. It is the same for every app and every business: Trainior knows which business is yours from the account you sign in with.

Do I need a ChatGPT, Claude or Gemini subscription?

It depends on the app. On ChatGPT you need a Business, Enterprise or Edu plan. On Claude, a free account is enough for one custom connector. Gemini needs no subscription, but Google currently offers it to users in the US only.

Can the AI change anything in Trainior?

No. Every tool of the connector is read-only: the AI sees numbers and a few names, but it cannot make bookings, change members, issue receipts or send messages.

What does the AI see about my members?

Only what a question needs: a member's name, their membership's status and dates, and totals. Phone numbers, emails, addresses, notes, questionnaires and health data are never sent.

Where does the data go?

Trainior's answers go to your own account in the AI app, where the terms and privacy settings of the company that provides it apply (OpenAI, Anthropic or Google). Trainior sends only what was asked for, and only after you signed in and approved access.

Can my staff connect?

Not yet. Today only the business owner connects, with their own account.

Are the answers always right?

The numbers come straight from Trainior. The AI interprets and summarises them, though, and like any assistant it can get things wrong. For decisions that matter, check the number in Trainior too.

How do I disconnect the AI?

In the AI app's settings: remove or disconnect the Trainior connector, as each app's guide above describes. To reconnect, you sign in with your Trainior account again.

How much does it cost?

AI Connector costs €3.99 a month, incl. VAT, on top of your package, and you add it from “Trainior subscription”. The AI app is billed separately by the company that provides it.

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