Claude
- Open Settings → Connectors and choose Add custom connector.
- Name it Heavist and paste the address above.
- Click Connect and pick Apple or Google, with the same account as in the app.
- Ask away: Claude looks into Heavist whenever it needs to.
Heavist MCP server
Your AI, with your real workouts.
Add Heavist as a connector in Claude or ChatGPT. Your assistant reads your program, workouts and records to help you progress, on your own subscription.
Connector address
https://mcp.heavist.com/mcp
Connect in two minutes
ChatGPT
- Open Settings → Apps and turn on Developer mode under Advanced settings.
- Choose Create, name it Heavist, paste the address and keep OAuth authentication.
- Click Connect and pick Apple or Google, with the same account as in the app.
- In a chat, open +, pick Developer mode, then Heavist.
Developer mode needs a paid ChatGPT plan, and its menus sometimes move around.
What your assistant can read
- Your profileAge, height, weight and weigh-ins.
- Your programYour workouts and their days in the week.
- Your sessionsEvery finished session, set by set.
- Your exercisesThe history and records of each one.
- Your stepsYour daily steps, from Apple Health.
Read-only
The assistant can't create, change or delete anything in your account. To cut access, remove the connector from your assistant.
What to ask
- “Review my program and tell me what's missing.”
- “How has my bench press changed this month?”
- “Which muscles have I neglected these last four weeks?”
- “Plan me a 45 min leg day with my current weights.”
- “Have I been consistent since September?”
- “My squat has stalled: what would you change?”
Questions
Does it cost anything?
Heavist doesn't charge anything extra. The assistant runs on your Claude or ChatGPT subscription.
Who sees my data?
Your assistant, only after you sign in and only read-only. What it does with it then follows Claude's or ChatGPT's privacy rules.
What about other assistants?
Heavist works with any assistant that accepts a remote MCP server with OAuth sign-in: paste the same address.