tracking-crypto-prices
Track real-time cryptocurrency prices across exchanges with historical data and alerts. Provides price data infrastructure for dependent skills (portfolio, tax, DeFi, arbitrage). Use when checking crypto prices, monitoring markets, or fetching historical price data. Trigger with phrases like "check price", "BTC price", "crypto prices", "price history", "get quote for", "what's ETH trading at", "show me top coins", or "track my watchlist".
Allowed Tools
Provided by Plugin
market-price-tracker
Real-time market price tracking with multi-exchange feeds and advanced alerts
Installation
This skill is included in the market-price-tracker plugin:
/plugin install market-price-tracker@claude-code-plugins-plusClick to copy
Instructions
Tracking Crypto Prices
Contents
Overview | Prerequisites | Instructions | Output | Error Handling | Examples | Resources
Overview
Foundation skill providing real-time and historical cryptocurrency price data for 10,000+ coins. This is the data layer for the crypto plugin ecosystem -- 10+ other skills depend on it for price information.
Prerequisites
- Install dependencies:
pip install requests pandas yfinance - Optional:
pip install python-dotenvfor API key management - Optional: Get free API key from https://www.coingecko.com/en/api for higher rate limits
- Add API key to
${CLAUDESKILLDIR}/config/settings.yamlor setCOINGECKOAPIKEYenv var
Instructions
- Check current prices for one or more symbols:
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbols BTC,ETH,SOL
- Use watchlists to scan predefined groups (available:
top10,defi,layer2,stablecoins,memecoins):
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --watchlist top10 # Top 10 by market cap
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --watchlist defi # DeFi tokens
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --watchlist layer2 # Layer 2 tokens
- Fetch historical data by period or custom date range:
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC --period 30d
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC --period 90d --output csv
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol ETH --start 2024-01-01 --end 2024-12-31 # 2024 full year
- Configure settings by editing
${CLAUDESKILLDIR}/config/settings.yamlto customize cache TTLs, default currency, and custom watchlists. Seereferences/implementation.mdfor the full configuration reference.
Output
- Table (default): Symbol, price, 24h change, volume, market cap in formatted columns
- JSON (
--format json): Machine-readable with prices array and metadata - CSV (
--output csv): OHLCV historical data export to${CLAUDESKILLDIR}/data/
See ${CLAUDESKILLDIR}/references/implementation.md for detailed output format examples.
Error Handling
| Error | Cause | Solution |
|---|---|---|
Unknown symbol: XYZ |
Invalid ticker | Check spelling, use --list to search |
Rate limit exceeded |
Too many API calls | Wait 60s, or add API key for higher limits |
Network error |
No internet | Check connection; cached data used automatically |
Cache stale |
Data older than TTL | Shown with warning, refreshes on next call |
The skill auto-manages rate limits: cache first, exponential backoff, yfinance fallback, stale cache as last resort.
Examples
Quick price check:
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC
# Output: BTC (Bitcoin) $97,234.56 USD +2.34% (24h) | Vol: $28.5B | MCap: $1.92T
Watchlist scan:
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --watchlist top10
Historical export:
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol ETH --period 90d --output csv
# Creates: ${CLAUDE_SKILL_DIR}/data/ETH_90d_[date].csv
Resources
${CLAUDESKILLDIR}/references/implementation.md- Output formats, full config, integration guide, file map- CoinGecko API - Primary data source
- yfinance - Fallback for historical data