How is the average price calculated?

The average price is the total cost of all shares divided by the total quantity of shares held.

Can I add new stock purchases?

Yes, you can use the `add_purchase` tool to record new transactions and automatically update your average price.

How do I verify my portfolio data?

You can use `validate_portfolio_integrity` to perform a checksum and ensure your transaction history matches your calculated averages.

Stock Average Price Tracker MCP Connector for Claude

A+

Calculate weighted average cost basis for stock portfolios.

4 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides tools to manage and calculate the weighted average cost basis of stock holdings. Users can record new transactions using add_purchase, retrieve full purchase histories with get_transaction_history, and check current holdings via get_average_price. It also includes validate_portfolio_integrity to ensure transaction records match the calculated averages. It is compatible with Cursor, VS Code, Claude Desktop, Windsurf, and any MCP-compatible client.

stocksfinanceportfolioaverage-priceinvestment

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_JhIliby4Kvj2FO1m6kFcZ7QwqkdMSi2PJDJ5kSJA/mcp

② Claude Code (terminal)

claude mcp add --transport http stock-average-price-tracker https://edge.vinkius.com/vk_preview_JhIliby4Kvj2FO1m6kFcZ7QwqkdMSi2PJDJ5kSJA/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "stock-average-price-tracker": {
      "url": "https://edge.vinkius.com/vk_preview_JhIliby4Kvj2FO1m6kFcZ7QwqkdMSi2PJDJ5kSJA/mcp"
    }
  }
}

Get full access on Vinkius

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