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Connect Claude

Add FounderSync to Claude.ai, Claude Desktop or Claude Code with the MCP server URL and approve access once.

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Claude connects to FounderSync as a remote MCP server. Use the full-access URL https://mcp.foundersync.io/mcp to let Claude read and change your workspace, or https://mcp.foundersync.io/mcp/readonly to let it look without changing anything. See the overview for the difference.

Claude.ai and Claude Desktop#

Claude calls a remote MCP server a custom connector. Anthropic's help center describes the steps for Pro and Max plans:

  1. Open Customize, then Connectors.
  2. Click + Add, then Add custom connector.
  3. Enter a name, for example FounderSync.
  4. Enter the server URL and click Continue.
  5. Review the detected authentication settings, then click Continue. Sign-in through OAuth is what FounderSync uses.
  6. Click Add.

Then click Connect on the connector. Claude opens FounderSync's consent screen. Sign in to FounderSync if asked, check which agent is asking, and click Allow access.

To use it in a conversation, click the + button at the lower left of the chat, choose Connectors, and switch FounderSync on. Connectors are enabled per conversation.

On Team and Enterprise plans an organization owner adds the connector first, under Organization settings, Connectors. Members then find it under Customize, Connectors and click Connect. Free plans are limited to one custom connector.

Anthropic's help article says remote connectors are configured through your Claude account and are available in Claude Desktop. It does not list separate Desktop menu labels, so if a label differs in your version, look for Connectors in Customize.

Claude Code#

Add the server from your terminal:

bash
claude mcp add --transport http foundersync https://mcp.foundersync.io/mcp

The default scope is local to your current project. Add --scope user to make the server available in all your projects, or --scope project to write it to .mcp.json so your team shares it.

Then sign in. Start Claude Code and run:

text
/mcp

Select the FounderSync server and follow the steps in your browser. You approve access on the FounderSync consent screen, and Claude Code stores and refreshes the token for you. From a shell you can also run claude mcp login foundersync. Over SSH with no local browser, the command prints the authorization URL and asks you to paste the full redirect URL back.

Useful commands:

bash
claude mcp list
claude mcp get foundersync
claude mcp logout foundersync
claude mcp remove foundersync

Run claude mcp logout before claude mcp remove if you want to clear the stored sign-in; removing a server deletes the local tokens but does not revoke them at the authorization server.

Check that it works#

Ask Claude: "Call whoami in FounderSync and list my startups." If it answers with your name and startups, you are connected. If you belong to more than one startup, tell Claude which one to use.

To stop Claude's access later, see security and access.