VNStock MCP Server

Instructions

Get company subsidiaries from stock market
Args:
    symbol: str
    filter_by: Literal["all", "subsidiary"] = "all"
    output_format: Literal['json', 'dataframe'] = 'json'
Returns:
    pd.DataFrame

Implementation Reference

• src/vnstock_mcp/server.py:136-157 (handler)

  The handler function for the 'get_company_subsidiaries' tool. It uses TCBSCompany to fetch subsidiaries data based on symbol and filter, returning it as JSON or DataFrame. The @server.tool() decorator registers it as an MCP tool.

  @server.tool()
  def get_company_subsidiaries(
      symbol: str,
      filter_by: Literal["all", "subsidiary"] = "all",
      output_format: Literal["json", "dataframe"] = "json",
  ):  # pyright: ignore[reportUndefinedVariable]
      """
      Get company subsidiaries from stock market
      Args:
          symbol: str
          filter_by: Literal["all", "subsidiary"] = "all"
          output_format: Literal['json', 'dataframe'] = 'json'
      Returns:
          pd.DataFrame
      """
      equity = TCBSCompany(symbol=symbol)
      df = equity.subsidiaries(filter_by=filter_by)
      if output_format == "json":
          return df.to_json(orient="records", force_ascii=False)
      else:
          return df