Connect Claude to Rack (MCP): Add the Custom Connector
Add Rack as a custom connector in Claude so it can create routines and custom exercises for you. Paste the server URL, sign in with your Rack account, then attach Rack to a chat. Works on every Claude plan. Requires Rack Pro.
Claude can create routines and custom exercises in Rack for you. You wire it up once by adding Rack as a custom connector, a small web address (an MCP server) that lets an AI assistant take actions in your Rack account. After that, you just ask Claude in plain English. About 5 minutes to set up.
Before You Start
- You need Rack Pro.The connector signs in with your Rack account, and only Pro accounts are granted access. There’s nothing to switch on inside Rack itself.
- Custom connectors work on every Claude plan: Free, Pro, Max, Team and Enterprise.
- You already have a Rack account you can sign into with Google or Apple. The connector signs into that same account.
- Have this address ready to paste: https://mcp.rackstrength.com/mcp
1. Add the Rack Connector
Open Customize → Connectors, click the + button, and choose Add custom connector. Paste the server URL exactly:
https://mcp.rackstrength.com/mcp
Name it Rack, add it, then sign in with your Rack account (Google or Apple) when the sign-in window opens. That sign-in is what links the connector to your account. If you were given OAuth credentials to use, they go under Advanced settings; most people can leave that alone.
2. If You Are on a Team or Enterprise Plan
On Team and Enterprise plans, an organization owner adds the connector first, under Organization settings → Connectors. Once it is there, each member connects their own Rack account under Customize → Connectors. Everyone signs in individually, so nobody sees anyone else’s workouts.
3. Add Rack to a Chat
Start a new chat. Click the + button at the lower left of the message box, choose Connectors, and pick Rack. Now Claude can read and write to your Rack account in this conversation.
4. Ask for What You Want
Just describe the outcome. For example:
“Use Rack’s save-routine tool to build an upper/lower split from my last 4 workouts.”
The first time Claude writes to Rack, it asks you to allow the tool and shows what it is about to send (routine name, exercises, sets, reps, weight). Approve it and the routine or exercise lands in your Rack account.
Still Stuck?
Email support@rackstrength.comand we’ll help you get connected.