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