# Setup (/docs/api/mcp/setup)



The MCP server URL is the same everywhere: `https://mcp.decisionmaker.email/mcp`

The first time you connect, your client will open a browser window for OAuth consent. Sign in with the same account you use on decisionmaker.email and approve access.

Claude (web and desktop) [#claude-web-and-desktop]

1. Open Claude.
2. Go to **Settings** → **Connectors** → **Add Custom Connector**.
3. Paste `https://mcp.decisionmaker.email/mcp`.
4. Click **Connect**. Approve in the OAuth popup.

Claude Code [#claude-code]

Claude Code reads `.mcp.json` at your project root. Create it:

```json
{
  "mcpServers": {
    "decisionmaker-email": {
      "type": "http",
      "url": "https://mcp.decisionmaker.email/mcp"
    }
  }
}
```

Then run `/mcp` inside Claude Code to authorize.

Other clients [#other-clients]

Any client that supports the Streamable HTTP transport and OAuth 2.1 Dynamic Client Registration will work. Point it at `https://mcp.decisionmaker.email/mcp` and follow the client's generic "add custom MCP server" instructions.