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Connect Simma to Claude

September 8, 2026·Simma
Simma Guidesmcpclaudeai assistantsimma connectorsetup

Connect Simma to Claude

Claude is the assistant where everything works, for everyone. Any individual Claude account can add Simma as a custom connector, and once it's connected a coach gets their whole squad and an athlete gets their own training — reads and writes, with the safety gates intact. If you have a choice of assistant, start here.

Setup takes about two minutes. There is nothing to install and nothing to configure beyond one URL.

What you need

The URL

https://mcp.getsimma.com/mcp

That is the only value you will be asked for.

Step by step

  1. Open Claude's settings and go to Connectors.
  2. Add a custom connector. Give it a name — "Simma" is fine — and paste the URL above.
  3. Leave the OAuth client settings alone. If Claude offers a choice, pick the option that registers a client automatically. Simma handles that on its side; you never need a client ID or secret.
  4. Save, then connect. Claude opens Simma's sign-in page in your browser. Sign in with the email and password you use for the Simma app.
  5. You're done. Back in Claude, the connector shows as connected. Start a new conversation and Simma's tools are available.

Your first questions

If you're a coach:

"Who in my squad needs attention this week?"

"Give me the full picture on Sarah before I write to her."

"Show me every swim this month where the main set faded."

If you're an athlete:

"How is my training going?"

"Walk me through my last long ride."

"Am I pacing my swims more evenly than I was?"

Claude picks the tools; you never call them by name. For the full list of what a coach can ask, see Every Simma Connector Tool, and What to Ask For.

Permission prompts

The first time Claude uses each tool it may ask you to allow it. Choose always allow for the tools you're happy with and it stops asking. The tools that only read your data are marked as read-only, so Claude can tell them apart from the ones that change something.

The one action that is never silent is sending a message. Before a coach's draft goes to an athlete, or an athlete's message goes to their coach, Simma shows you the full text and asks you directly. The assistant can't answer that prompt for you.

Signing out, or switching accounts

Every time you connect, Simma asks you to sign in afresh, so switching between accounts is just disconnecting and connecting again. If you want to be certain the browser session is cleared — on a shared computer, say — ask Claude to sign you out of Simma and it will give you the link that does it.

Also using Claude Code?

The same server works from the terminal. Simma registers a fixed callback port for it, so pass that port when you add it:

claude mcp add --transport http simma https://mcp.getsimma.com/mcp --callback-port 8765

Then run /mcp inside Claude Code and choose Simma to sign in.

Who can see what

The conversation you have with Claude stays between you and Claude. Simma never receives it — Simma sees the requests for data, not the words around them. The only thing that ever reaches another person is a message you deliberately send.

Two things worth knowing plainly. Anthropic, as the provider of Claude, processes your conversation under its own terms. And an athlete who has no coach of their own is attached to Simma's house coach account, which can read their training data in the same way any coach can; see the privacy policy for what that means.

If something doesn't work