E*TRADE MCP Server

Instructions

Implementation Reference

• etrade_mcp/server.py:67-82 (handler)

  Main handler for etrade_get_auth_url tool. Gets auth instance, request token, builds and returns the authorization URL with instructions.
  @mcp.tool() def etrade_get_auth_url() -> str: """ Get E*TRADE OAuth authorization URL. This is the first step in authentication - returns a URL for the user to visit. Returns: Authorization URL that the user should visit in their browser """ global _request_token, _request_token_secret auth = get_auth() _request_token, _request_token_secret = auth.get_request_token() authorize_url = auth.get_authorize_url(_request_token) return f"Please visit this URL and authorize the application:\n{authorize_url}\n\nAfter authorizing, you will receive a verification code. Use etrade_authenticate with that code."
• etrade_mcp/server.py:67-67 (registration)

  Tool registration decorator @mcp.tool() for etrade_get_auth_url.
  @mcp.tool()
• etrade_mcp/server.py:68-75 (schema)

  Function signature and docstring defining input (none) and output (str: auth URL).
  def etrade_get_auth_url() -> str: """ Get E*TRADE OAuth authorization URL. This is the first step in authentication - returns a URL for the user to visit. Returns: Authorization URL that the user should visit in their browser """
• etrade_mcp/server.py:23-37 (helper)

  Helper to get or initialize the global ETradeAuth instance.
  def get_auth() -> ETradeAuth: """Get or create auth instance""" global _auth if _auth is None: consumer_key = os.getenv("ETRADE_CONSUMER_KEY") consumer_secret = os.getenv("ETRADE_CONSUMER_SECRET") environment = os.getenv("ETRADE_ENVIRONMENT", "sandbox") if not consumer_key or not consumer_secret: raise ValueError( "ETRADE_CONSUMER_KEY and ETRADE_CONSUMER_SECRET must be set in environment variables" ) _auth = ETradeAuth(consumer_key, consumer_secret, environment) return _auth
• etrade_mcp/auth.py:43-53 (helper)

  ETradeAuth.get_request_token() method called by the handler to obtain OAuth request token and secret.
  def get_request_token(self) -> Tuple[str, str]: """ Get OAuth request token Returns: Tuple of (request_token, request_token_secret) """ request_token, request_token_secret = self.oauth_service.get_request_token( params={"oauth_callback": "oob", "format": "json"} ) return request_token, request_token_secret