Yahoo Finance

This MCP server implements a lightweight note storage and management system for Yahoo Finance. You can store notes, access them via a simple note:// scheme, generate summaries of all notes, and extend the server state by adding new notes. It runs over standard MCP tooling, allowing you to connect with compatible clients to read, update, and summarize your notes.

How to use

You interact with the Yahoo Finance MCP server through an MCP client. Use the add-note tool to create new notes by providing a name and the content. The summarize-notes prompt creates a consolidated summary of all stored notes, with an optional style parameter to control the level of detail. As you add notes, clients are notified of resource changes so you stay in sync.

How to install

Prerequisites: you need access to MCP runtime tooling (uv/uvx) to start and manage MCP servers.

Step 1. Prepare your MCP server configuration in your environment. You will define the mcpServers entries for your local or published setup.

Step 2. Start the server using the appropriate command shown below depending on whether you are running a development or a published server.

{
  "mcpServers": {
    "yahoo_finance_dev": {
      "command": "uv",
      "args": [
        "--directory",
        "/Users/josh/src/mcp-server-yahoo-finance",
        "run",
        "mcp-server-yahoo-finance"
      ]
    },
    "yahoo_finance_published": {
      "command": "uvx",
      "args": [
        "mcp-server-yahoo-finance"
      ]
    }
  }
}

Additional configuration notes

The server exposes a simple note storage API with notes accessible via a custom note:// URI scheme. Each note has a name, description, and text/plain mime type.

Available tools and prompts

Tools you can use:

• add-note: Adds a new note to the server. Requires name and content as strings. This updates the server state and notifies clients about changes.

Prompts you can run:

• summarize-notes: Creates summaries of all stored notes. Optional style argument controls detail level (brief or detailed). It generates a prompt combining all current notes with the chosen style.

Available tools

add-note

Adds a new note to the server by providing a name and content; updates server state and notifies clients of resource changes.

summarize-notes

Generates a summary of all stored notes, with an optional style argument to control the level of detail.