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Redstone Markets

by redstonemarkets.com · remote · no sign-in to list tools · v1.0.0 · published by com.redstonemarkets

Performance, risk, comparisons, backtests and screening for US stocks and ETFs, with charts.

Changes · 2
CompareRegistry entry

4 tools: 2 change things and 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http redstone https://redstonemarkets.com/api/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Changes things 2Claude Code: ask
  • backtest_portfolioUse this when the user describes a portfolio of US stocks and ETFs with weights (e.g.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Use this when the user describes a portfolio of US stocks and ETFs with weights (e.g. "60% VTI, 40% BND", "equal parts AAPL, MSFT, NVDA") and wants to know how it would have done or how risky it is: returns over YTD, 1 year and 5 years (rebalanced quarterly), max drawdown, Sharpe, beta vs SPY and the correlation between holdings, charted against SPY. 2 to 20 holdings. Not for live brokerage accounts, trading or allocation advice.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • screen_securitiesUse this when the user wants a ranked list of US stocks or ETFs by a performance or risk metric, optionally within a sector or ETF category (e.g.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Use this when the user wants a ranked list of US stocks or ETFs by a performance or risk metric, optionally within a sector or ETF category (e.g. "lowest volatility dividend ETFs", "highest Sharpe tech stocks this year", "energy stocks with the smallest drawdown"). Covers about 1,100 US-listed stocks and about 480 US ETFs, end-of-day. Not for fundamentals (P/E, revenue), news or buy recommendations.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
Only reads 2Claude Code: allow
  • compare_securitiesUse this when the user wants to compare 2 to 5 US stocks or ETFs side by side (e.g.No findings

    Why it is in this group

    • The name "compare_securities" says "compare": a word for reading.
    Description, as the server wrote it
    Use this when the user wants to compare 2 to 5 US stocks or ETFs side by side (e.g. "VOO vs QQQ", "SCHD or VYM?"): returns, drawdown, Sharpe, beta and how correlated they are, with an overlaid 1Y/5Y chart. End-of-day data for US large and mid caps, major foreign stocks and US ETFs. Not for intraday quotes or recommendations on what to buy.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • get_security_metricsUse this when the user asks how a single US stock or ETF has performed or how risky it is: YTD, 1-year and 5-year annualized returns, max drawdown, Sharpe, Sortino, beta and alpha,…No findings

    Why it is in this group

    • The name "get_security_metrics" says "get": a word for reading.
    Description, as the server wrote it
    Use this when the user asks how a single US stock or ETF has performed or how risky it is: YTD, 1-year and 5-year annualized returns, max drawdown, Sharpe, Sortino, beta and alpha, with a 1Y/5Y chart. End-of-day data for US large and mid caps, major foreign stocks and US ETFs. Not for intraday quotes, news, earnings, fundamentals or price targets.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http redstone https://redstonemarkets.com/api/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__redstone__get_security_metrics",
      "mcp__redstone__compare_securities"
    ],
    "ask": [
      "mcp__redstone__backtest_portfolio",
      "mcp__redstone__screen_securities"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as redstone. Review it before you use it.