Finance MCP

"""Demo script for testing FastMCP stdio-style tool invocation. This module defines a minimal `FastMCP` instance with a single `add` tool, then uses a `Client` to call that tool asynchronously. It is intended for manual debugging of tool registration, execution, and streaming behavior. """ import asyncio import contextlib from io import StringIO from fastmcp import Client from fastmcp import FastMCP from loguru import logger mcp = FastMCP("Demo 🚀") @mcp.tool def add(a: int, b: int) -> str: """Add two numbers. The function demonstrates how a MCP tool can execute arbitrary Python code and capture its stdout. The `a` and `b` arguments are currently not used inside the dynamic code snippet; they are kept to illustrate typed tool parameters. """ code = """ import numpy as np def power_int(a: int, b: int) -> int: return int(np.power(a, b)) print(power_int(10, 2)) """.strip() print(code) try: redirected_output = StringIO() with contextlib.redirect_stdout(redirected_output): exec(code, globals()) result = redirected_output.getvalue().strip() except Exception as e: # pragma: no cover - defensive logging path logger.exception(e) result = "error" return result + str(a) + str(b) async def main() -> None: """Invoke the `add` MCP tool and print its captured output.""" async with Client(mcp) as client: result = await client.call_tool( name="add", arguments={"a": 1, "b": 2}, ) print(result) asyncio.run(main())