# Redstone MCP server

> Analyze returns and risk for US stocks, ETFs and shared portfolios, with screening, comparisons and backtests on end-of-day data.

- Listing: https://mcp.tc/i/redstone
- Connect: use the server's own URL `https://redstonemarkets.com/api/mcp` (no sign-in); clients connect to it directly. The listing link is a page, not an MCP endpoint.
- Type: remote (Streamable HTTP)
- Auth: none
- Category: [Finance & Payments](https://mcp.tc/c/finance-payments)
- Vendor: Redstone Markets
- Homepage: <https://redstonemarkets.com>

## About

Redstone provides end-of-day performance and risk analytics for about 2,900 US-listed stocks and about 1,200 US ETFs. It returns YTD, 1-year and 5-year annualized returns, max drawdown, volatility, Sharpe, Sortino, beta, alpha and dividend yield. You can compare securities, backtest weighted portfolios, screen by metric and browse public and model portfolios.

The hosted endpoint uses streamable HTTP and is read-only. No sign-in or API key is needed. Data is not real-time, and results are historical figures, not investment advice.

## What it can do

- Get returns, drawdown, volatility, Sharpe and yield for a stock or ETF
- Compare 2 to 5 stocks or ETFs side by side with correlations
- Backtest weighted portfolios of 2 to 20 holdings against SPY
- Screen stocks and ETFs by performance, risk or yield, by sector or category
- Search public and model portfolios by risk and return filters
- Fetch holdings and metrics for one shared portfolio

## Tools (6)

- `get_security_metrics`: Performance and risk metrics for one US stock or ETF, with a 1Y/5Y chart. (read-only)
- `compare_securities`: Compare 2 to 5 stocks or ETFs on returns, risk, yield and correlation. (read-only)
- `backtest_portfolio`: Backtest a weighted portfolio of 2 to 20 holdings, rebalanced quarterly, against SPY. (read-only)
- `screen_securities`: Rank stocks or ETFs by a performance, risk or yield metric, optionally by sector. (read-only)
- `search_portfolios`: Find public user portfolios and model portfolios using figure filters. (read-only)
- `get_portfolio`: Holdings, returns and risk figures for one public Redstone portfolio. (read-only)

## Example prompts

- "How risky has NVDA been over the past year?"
- "Compare VOO vs QQQ on returns, drawdown and Sharpe."
- "Backtest a 60% VTI, 40% BND portfolio."
- "Show the lowest volatility dividend ETFs."

## Install

### Claude Code

1. Run this in a terminal, in your project folder:

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

2. Start Claude Code and type `/mcp`. **redstone** should show as connected.

Add `--scope user` to make it available in every project, not just this one.

### Claude Desktop

1. Open **Customize → Connectors**, click **+ Add**, then **Add custom connector**.

2. Name it **Redstone** and paste this URL:

```url
https://redstonemarkets.com/api/mcp
```

3. Click **Add**. Its tools appear in the chat’s tools menu.

Claude Desktop’s JSON config file only starts local servers. Remote servers go through Connectors, and connectors you add on claude.ai show up here too.

### claude.ai

1. Open the connector form on claude.ai. This button fills in the name and URL for you:

[Add to claude.ai](<https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Redstone&connectorUrl=https%3A%2F%2Fredstonemarkets.com%2Fapi%2Fmcp>) (opens connector settings)

2. Check that the URL reads `https://redstonemarkets.com/api/mcp` and click **Add**.

3. Turn it on in a chat from the tools menu.

Free plans allow one custom connector. On Team and Enterprise plans an owner adds it under **Organization settings → Connectors**.

### ChatGPT

1. On chatgpt.com, go to **Plugins**, select **+**, then **Add custom MCP server**.

2. Enter a name for the server.

3. Under **Connection**, paste `https://redstonemarkets.com/api/mcp` as the server URL, then for authentication choose **No authentication**.

4. Check **I understand and want to continue**, then select **Create as a plugin**.

Whether you can add a custom MCP server depends on your ChatGPT plan and your workspace permissions (in Business workspaces, admins and owners can).

### Cursor

[Add to Cursor](<https://cursor.com/install-mcp?name=redstone&config=eyJ1cmwiOiJodHRwczovL3JlZHN0b25lbWFya2V0cy5jb20vYXBpL21jcCJ9>) (opens Cursor)

Or add it by hand to `~/.cursor/mcp.json` (all projects) or `.cursor/mcp.json` (this project):

`mcp.json`:

```json
{
  "mcpServers": {
    "redstone": {
      "url": "https://redstonemarkets.com/api/mcp"
    }
  }
}
```

### VS Code

[Install in VS Code](<https://vscode.dev/redirect/mcp/install?name=redstone&config=%7B%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fredstonemarkets.com%2Fapi%2Fmcp%22%7D>) (opens VS Code)

Or from a terminal:

```bash
code --add-mcp '{"name":"redstone","type":"http","url":"https://redstonemarkets.com/api/mcp"}'
```

Or commit it to the repo in `.vscode/mcp.json`:

`.vscode/mcp.json`:

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

### Devin Desktop

1. Add it to `~/.config/devin/mcp_config.json` (macOS and Linux) or `%APPDATA%\devin\mcp_config.json` (Windows):

`mcp_config.json`:

```json
{
  "mcpServers": {
    "redstone": {
      "serverUrl": "https://redstonemarkets.com/api/mcp"
    }
  }
}
```

2. Refresh the MCP server list in Cascade.

Devin Desktop is the new name for Windsurf. It reads `serverUrl` (or `url`) for remote servers.

### Codex

```bash
codex mcp add redstone --url https://redstonemarkets.com/api/mcp
```

Or edit `~/.codex/config.toml` directly:

`config.toml`:

```toml
[mcp_servers.redstone]
url = "https://redstonemarkets.com/api/mcp"
```

### Gemini CLI

```bash
gemini mcp add --transport http redstone https://redstonemarkets.com/api/mcp
```

This adds it to the current project. Add `-s user` to use it everywhere.

### Any client

Most clients accept this shape. Some name the URL field differently: `serverUrl` in Devin Desktop, `httpUrl` in Gemini CLI’s settings file.

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

Zed puts servers under `context_servers` in its settings. Cline needs `"type": "streamableHttp"`, or it assumes SSE.

Client only starts local servers? Bridge it with `npx -y mcp-remote https://redstonemarkets.com/api/mcp`.

## Recent changes

- 2026-11-08 05:52 UTC: Server instructions changed. Source: automatic check. Worth a look: new server instructions.
- 2026-11-01 02:27 UTC: Tracking started: 6 tools read. Source: automatic check.

More on the History tab, with descriptions before and after for the newest entries: https://mcp.tc/i/redstone#history (Atom feed: https://mcp.tc/i/redstone/history.xml). It records what mcp.tc's anonymous checks saw, every 3 hours where the tool list can be read without sign-in; it is not a security review.

## Details

- Server version: 1.1.0
- MCP protocol version: 2026-07-28
- Last checked: 2026-11-15 (reachable)
- Listed: 2026-11-01
- Updated: 2026-11-01

---
Source: https://mcp.tc/i/redstone (mcp.tc is an independent directory, not affiliated with this server's publisher). Corrections: https://mcp.tc/report