stock-prices

name	stock-prices
description	Query real-time stock prices and market data using the Stock Prices API. Responses are in TOON format—decode with @toon-format/toon. Use when fetching stock quotes, analyzing market data, or working with symbols like AAPL, NVDA, GOOGL, or any ticker symbols.

Stock Prices API Skill

This skill helps you work with the Stock Prices API to fetch real-time market data and stock quotes.

API Endpoint

Base URL: https://stock-prices.on99.app

Primary Endpoint: /quotes?symbols={SYMBOLS}

Quick Start

Fetch stock quotes for one or more symbols (responses are in TOON format):

curl "https://stock-prices.on99.app/quotes?symbols=NVDA"
curl "https://stock-prices.on99.app/quotes?symbols=AAPL,GOOGL,MSFT"

Install the TOON decoder for parsing: pnpm add @toon-format/toon

Response Format

The API returns TOON (Token-Oriented Object Notation) format—a compact, human-readable encoding that uses ~40% fewer tokens than JSON. This makes it ideal for LLM prompts and streaming.

TOON Response Example

quotes[1]{symbol,currentPrice,change,percentChange,highPrice,lowPrice,openPrice,previousClosePrice,preMarketPrice,preMarketChange,preMarketTime,preMarketChangePercent,...}:
  NVDA,188.54,-1.5,-0.789308,192.48,188.12,191.405,190.04,191.8799,3.3399048,2026-02-11T13:49:16.000Z,1.771457,...

Decoding TOON Responses

Use @toon-format/toon to parse responses back to JavaScript/JSON:

import { decode } from "@toon-format/toon";

 response =  ();
 toonText =  response.();
 data = (toonText);


 quote = data.[];
.();