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From market-price-tracker
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".
How this skill is triggered — by the user, by Claude, or both
Slash command
/market-price-tracker:tracking-crypto-pricesThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
[Overview](#overview) | [Prerequisites](#prerequisites) | [Instructions](#instructions) | [Output](#output) | [Error Handling](#error-handling) | [Examples](#examples) | [Resources](#resources)
Overview | Prerequisites | Instructions | Output | Error Handling | Examples | Resources
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.
pip install requests pandas yfinancepip install python-dotenv for API key management${CLAUDE_SKILL_DIR}/config/settings.yaml or set COINGECKO_API_KEY env varpython ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbols BTC,ETH,SOL
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
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
${CLAUDE_SKILL_DIR}/config/settings.yaml to customize cache TTLs, default currency, and custom watchlists. See references/implementation.md for the full configuration reference.--format json): Machine-readable with prices array and metadata--output csv): OHLCV historical data export to ${CLAUDE_SKILL_DIR}/data/See ${CLAUDE_SKILL_DIR}/references/implementation.md for detailed output format examples.
| 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.
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
${CLAUDE_SKILL_DIR}/references/implementation.md - Output formats, full config, integration guide, file mapCreates, edits, and optimizes skills for Claude Code, including drafting, evaluating with test prompts, iterating on performance, and improving skill descriptions for better triggering accuracy.
npx claudepluginhub flight505/skill-forge --plugin market-price-tracker