# Redstone Markets

Category: [Finance](https://free-web-services.com/web-services/unit-convertors/fiinance/)  
Page: https://free-web-services.com/web-services/unit-convertors/fiinance/redstone-markets.html  
Documentation: https://redstonemarkets.com/about#ai-assistants

Redstone Markets gives return and risk figures for about 2,900 US stocks and 1,200 US ETFs: total returns with dividends reinvested, max drawdown, volatility, Sharpe, Sortino, beta and dividend yield, for example to compare VOO and QQQ or backtest a 60/40 portfolio. It is a public, read-only MCP server (Streamable HTTP) at https://redstonemarkets.com/api/mcp with six tools that answer in JSON, built on end-of-day prices. Free, no key or account needed. The docs are in an MIT-licensed GitHub repository.

- API key: Not needed
- Pricing: Free, no key or account needed.
- From the browser: No, call it from a server
- Formats: JSON
- Interface: MCP
- Provider: redstonemarkets.com
- Last checked: Working on November 12th, 2026

Example request:

```sh
curl -X POST 'https://redstonemarkets.com/api/mcp' \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": {"name": "get_security_metrics", "arguments": {"ticker": "VOO"}}}'
```

Run the JavaScript on a server, such as Node.js 18 or newer: this API does not accept calls from web pages on other sites.