tracking-crypto-prices

# Tracking Crypto Prices

## Overview

Foundation skill providing real-time and historical cryptocurrency price data. This skill is the data layer for the crypto plugin ecosystem - 10+ other skills depend on it for price information.

**Key Capabilities:**
- Real-time prices for 10,000+ cryptocurrencies
- Historical OHLCV data (1 day to all-time)
- Multi-currency support (USD, EUR, GBP, 30+ currencies)
- Intelligent caching to minimize API calls
- Predefined and custom watchlists
- Export to CSV/JSON for analysis

**Dependent Skills:**
This skill provides price data to: market-movers-scanner, crypto-portfolio-tracker, crypto-tax-calculator, defi-yield-optimizer, liquidity-pool-analyzer, staking-rewards-optimizer, crypto-derivatives-tracker, dex-aggregator-router, options-flow-analyzer, arbitrage-opportunity-finder.

## Prerequisites

Install required dependencies:

```bash
pip install requests pandas yfinance
```

Optional for advanced features:
```bash
pip install python-dotenv  # For API key management
```

**API Setup** (optional, for higher rate limits):
1. Get free API key from https://www.coingecko.com/en/api
2. Add to `{baseDir}/config/settings.yaml` or set environment variable `COINGECKO_API_KEY`

## Instructions

### Step 1: Quick Price Check

Get current price for any cryptocurrency:

```bash
python {baseDir}/scripts/price_tracker.py --symbol BTC
```

Check multiple assets:

```bash
python {baseDir}/scripts/price_tracker.py --symbols BTC,ETH,SOL
```

### Step 2: Use Watchlists

Scan predefined watchlists:

```bash
# Top 10 by market cap
python {baseDir}/scripts/price_tracker.py --watchlist top10

# DeFi tokens
python {baseDir}/scripts/price_tracker.py --watchlist defi

# Layer 2 tokens
python {baseDir}/scripts/price_tracker.py --watchlist layer2
```

Available watchlists: `top10`, `defi`, `layer2`, `stablecoins`, `memecoins`

### Step 3: Fetch Historical Data

Get OHLCV (Open, High, Low, Close, Volume) history:

```bash
# Last 30 days
python {baseDir}/scri