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STRNTH Pro

Beta

Connect your AI assistant to STRNTH

Link Claude or ChatGPT to STRNTH and let it plan strength workouts, programmes and HIIT sessions, reuse and clone the ones you already have, then drop them straight into your app. You sign in with your STRNTH account, and nothing saves until you confirm it.

This feature is in beta, so expect it to keep changing as we improve it.

Server address

https://mcp.strnthapp.com

Paste this into your assistant's connector settings, then sign in.

What it does

Builds your training

Ask your assistant to plan a leg day, a 12 week programme or a HIIT session. It uses the real STRNTH exercise library.

Reuses what you have

It can read your saved workouts and programmes, then clone and adjust one. It can also clone a built-in programme like Push Pull Legs into your own.

You confirm first

It shows you the full workout and asks before saving. Nothing lands in your app until you say yes.

Lands in your app

Saved workouts appear in the Train tab under "AI generated", ready to start or tweak.

Before you start

  • 1You need STRNTH Pro. Connecting an AI assistant is a Pro feature.
  • 2Have the STRNTH app installed and know the email you sign in with.
  • 3When your assistant asks you to sign in, use that same email. We send you a six digit code to approve the connection.

Let your AI do it

Copy this message and paste it into a new chat. Some assistants can add STRNTH for you. The rest will walk you through it one step at a time.

You still sign in to STRNTH yourself. Your assistant never sees your code.

Please connect yourself to my STRNTH workout app. STRNTH has a remote MCP server at https://mcp.strnthapp.com. It uses an OAuth sign in, so there is no API key. If you can add it yourself, by changing your own settings, running a command or using my browser, then do it now. If you cannot, tell me the exact steps for the app I am using right now. Give me one step at a time and wait until I say it is done. When STRNTH asks me to sign in, I will use my STRNTH email and the six digit code it sends me. Once it is connected, list the STRNTH tools you can see. Then ask me what workout I want to build.

Connect Claude

Works in the Claude desktop app, the Claude mobile app and claude.ai.

Plan needed: STRNTH Pro. Any Claude plan works, including the free one. On the free plan you can add one custom connector.

Desktop or web

  1. 1Open Claude and go to Customize, then Connectors.
  2. 2Choose Add custom connector. Name it STRNTH and paste https://mcp.strnthapp.com as the URL. Leave the other settings as they are.
  3. 3Choose Add, then Connect. Sign in with your STRNTH email, enter the code we email you and approve.
  4. 4Ask Claude to build a workout. Confirm the preview, and it saves to your Train tab.

Mobile

Add the connector once on desktop or web. It then shows up in the Claude mobile app under the same account. To use it in a chat, tap the + button, then Connectors, and check STRNTH is on.

Connect ChatGPT

You add STRNTH once on the ChatGPT website. It then works in the desktop and mobile apps too.

Plan needed: STRNTH Pro and a paid ChatGPT plan. OpenAI is still rolling custom servers out, so not every plan has them yet. If you cannot see Add custom MCP server, your plan does not have it yet.

On the web

  1. 1Go to ChatGPT Plugins. Choose the + button, then Add custom MCP server.
  2. 2Name it STRNTH. Paste https://mcp.strnthapp.com as the server URL and choose OAuth to sign in.
  3. 3Read the warning and confirm, then choose Create as a plugin. Install it.
  4. 4Sign in with your STRNTH email, enter the code we send and approve.
  5. 5Start a new chat and type @ to pick STRNTH. Ask for a workout, confirm the preview and it saves to your app.

Common questions

Is it safe to connect?

Yes. You sign in with your STRNTH account using a one time code, the same as logging in. Your assistant can only suggest workouts, and nothing saves until you approve the preview.

Do I need STRNTH Pro?

Yes. Connecting an AI assistant is a Pro feature. The app is free to download, and you can upgrade to Pro inside it.

Which assistants work?

Claude and ChatGPT both connect. You paste the server address into their settings, or paste our setup message into a chat and let the assistant help.

What can it do?

Build strength workouts, full multi week programmes and HIIT sessions, all grounded in the real STRNTH exercise library. It can also read your saved workouts and programmes and clone them, including built-in programmes like Push Pull Legs.

Where do the workouts go?

Into your Train tab under "AI generated". From there you can start them, edit them or save them like any other workout.

Get STRNTH first

Download the app, upgrade to Pro, then connect your assistant. Free to download, no card required.

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