The Reps Log

Connect

Log your workout with ChatGPT

Add it once, at chatgpt.com. After that, ChatGPT logs whatever you tell it.

Before you start

  • You need a paid ChatGPT plan: Plus, Pro, Business, Enterprise or Edu. Free and Go can’t add custom apps.
  • Do this at chatgpt.com in a browser, not the phone app. OpenAI only offers developer mode on the web.
  • On a Business plan, only an owner or admin can turn on developer mode. On Enterprise and Edu, an admin has to allow it first.

Turn on developer mode

  1. Open Settings. Developer mode is under Security and login; on some accounts it’s at the bottom of Plugins (or under Apps, then Advanced settings). Turn it on.
  2. It’s labelled “elevated risk”. That’s ChatGPT’s standard label for anything OpenAI hasn’t reviewed itself, and it applies to every custom app, not just ours.

Add The Reps Log

  1. Click Plugins in the left sidebar, or go to chatgpt.com/plugins, and click +. The button only appears once developer mode is on.

  2. Name it The Reps Log. For the description, “My workout log” will do.

  3. Under Connection, paste this address, exactly:

    Connector address

    https://www.therepslog.com/mcp

    For authentication, choose OAuth.

  4. Tick the box saying you trust the app, if you’re shown one, then Create (you may see Scan tools first). ChatGPT sends you to our sign-in page. Type your email, we send you a code, you type it in. That’s your account made; there’s nothing else to sign up for.

  5. The Reps Log now shows in your plugins with a Dev label.

Use it in a chat

  1. In a new chat, type @ and pick The Reps Log, or open + and choose it from your apps.
  2. Say what you did. “Just started my workout.” “Bench 60 for 8, 8, 7.” “That’s me.” One line back each time.
  3. Writing to your log asks for a confirmation. Choose to remember your answer for the conversation, so it doesn’t ask again mid-set.
  4. ChatGPT only uses the app for the message you picked it for. If a later message doesn’t get logged, mention @The Reps Log again.

A good first message

Paste this in once. It sets up your profile so the numbers come back in your units.

First message

I've just connected The Reps Log, my workout tracker. Ask me a few quick questions — my goals, experience, how often I train, what equipment I have, and whether I use kg or lb — and save them to my profile. When I'm logging, keep your replies to one line. Then ask me to log my last workout.

On your phone

Add it at chatgpt.com. If it doesn’t show up in the ChatGPT phone app afterwards, open chatgpt.com in your phone’s browser instead.

If it’s not working

  • The address has to be exactly as shown above, with the www.
  • Some plans get read-only access to custom apps. If ChatGPT can read your log but won’t write to it, email us and we’ll help.
  • If a new tool doesn’t show up, open The Reps Log under Plugins and click Refresh.
  • Can’t turn on developer mode? Claude’s Free plan can add it in a minute: Log your workout with Claude.
  • Still stuck? Email hello@therepslog.com.

Log your workout with Claude instead.