Install into Cursor

Add the JSON below to .cursor/mcp.json (project scope) or ~/.cursor/mcp.json (global scope). You can also use the Settings > MCP UI: add a new server, point it at the command below, and toggle it on. No API key in the config — sign in after install.

{
  "mcpServers": {
    "reflex": {
      "command": "npx",
      "args": [
        "-y",
        "reflex-browser@latest",
        "mcp"
      ]
    }
  }
}

After saving, Cursor shows the Reflex server toggled on in Settings > MCP, with its tools listed.

Ask your agent to run reflex_auth with action: "login" to sign in (opens your browser, saves a key locally). For CI or headless setups, add REFLEX_API_KEY to the env block instead.

Platform note: macOS is supported today; Windows is in beta (see troubleshooting).