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Redstone MCP server

Which servers in the official MCP registry are Redstone's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-21

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Whose server it is
  • Registry namecom.redstonemarkets/redstoneverified in the MCP registry

The registry name sits under redstonemarkets.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-21
  • Stateanswerschecked 2026-10-21
  • Tools4
  • Server calls itselfredstone
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-21 the server answered initialize and tools/list without a sign-in. First answer in 119 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.
  • Checked on 5 of the 7 days it takes to judge reliability.

Once connected

  • For "compare popular ETFs on returns and drawdowns", the likely first call is compare_securities.
  • Parameters are untyped or undescribed in 2 of 4 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 5, the first on 2026-10-21
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 5 so far
  • Answeredmeasuring5 of the 7 daily checks it takes to print a share
  • Median first answer145 ms
  • Space in an agent's context≈ 1,078 tokensthe definitions of all its tools (4), which an agent carries on every turn
  • Tool definitionsA · 92 of 100
  • Typed results4 of 4 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 2 of 4

What an agent can do with it

  • not sure · track portfolio returns and risk metrics over time
  • can do · compare popular ETFs on returns and drawdowns
  • not sure · screen stocks and ETFs by quantitative criteria

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers4 tools · read 2026-10-21
  • get_security_metrics

    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…

  • compare_securities

    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…

  • backtest_portfolio

    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…

  • screen_securities

    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…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "redstone": {
      "type": "http",
      "url": "https://redstonemarkets.com/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

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

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://redstonemarkets.com/api/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.