TA-Lib MCP Server

import asyncio import json import pytest from mcp import ClientSession, StdioServerParameters from mcp.client.stdio import stdio_client @pytest.mark.asyncio async def test_bbands_tool_call(): server_params = StdioServerParameters(command="uv", args=["run", "python", "-m", "mcp_talib.cli"]) close = [float(x) for x in range(1, 51)] async with stdio_client(server_params) as (reader, writer): async with ClientSession(reader, writer) as session: await session.initialize() result = await session.call_tool("calculate_bbands", {"close_prices": close}) if hasattr(result, "value"): value = result.value else: text = getattr(result.content[0], "text", None) assert text is not None value = json.loads(text) assert value.get("success") is True assert "upperband" in value["values"] assert "middleband" in value["values"] assert "lowerband" in value["values"] if __name__ == "__main__": asyncio.run(test_bbands_tool_call())