LABSCO SUMMARY

No key, no signup — the shortest path to market data in a conversation.

Most finance servers start with an API key and a quota; this one starts with uvx and a ticker, which makes it the right choice for casual questions and quick comparisons. The trade is what you would expect from Yahoo Finance as a source: fine for prices, company details and options chains, not a foundation for anything that needs a data licence or a guaranteed feed.

What it is

A small Python server over Yahoo Finance that answers pricing and company questions about listed tickers.

What you get

Current price for a ticker, and the difference between two of them in one question
Historical movement between two dates, so 'how much did it change last year' is answerable directly
Company information alongside the price
Options: available expiration dates for a ticker, and the chain for a chosen expiry, calls and puts

Requirements

Nothing to authorize — no account, no key. Published to PyPI as mcp-yahoo-finance and run with uvx, or from a Docker image you build. The author describes it as early in development, with the tool set still changing.

Setup effort

One command — pip install mcp-yahoo-finance

See installation options

USE CASES

01

Checking a price while you are in the middle of something else

Ask for the ticker and get the number without opening a finance site.

02

Comparing two companies at once

Ask for the difference between two tickers in a single question rather than looking up both.

03

Seeing what a position did over a period

Give two dates and get the change between them, ready to reason about.

04

Looking at an options chain

List the available expiration dates for a ticker, then pull the calls and puts for the one you want.

BEFORE YOU INSTALL

What to know first

Requires

uvx on PATH

Where it runs

Both documented clients run the server on your machine.

INSTALLATION

Connect your client

Server setup

TERMINAL

pip install mcp-yahoo-finance

MCP Clients

Claude Desktop

CLAUDE DESKTOP · JSON

{
  "mcpServers": {
    "yahoo-finance": {
      "command": "uvx",
      "args": [
        "mcp-yahoo-finance"
      ]
    }
  }
}

VS Code

VS CODE · JSON

{
  "servers": {
    "yahoo-finance": {
      "command": "uvx",
      "args": [
        "mcp-yahoo-finance"
      ]
    }
  }
}

MCP Yahoo Finance