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".

25 stars

Best use case

tracking-crypto-prices is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

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".

Teams using tracking-crypto-prices should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

  • You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

  • You only need a quick one-off answer and do not need a reusable workflow.
  • You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/tracking-crypto-prices/SKILL.md --create-dirs "https://raw.githubusercontent.com/ComeOnOliver/skillshub/main/skills/jeremylongshore/claude-code-plugins-plus-skills/tracking-crypto-prices/SKILL.md"

Manual Installation

  1. Download SKILL.md from GitHub
  2. Place it in .claude/skills/tracking-crypto-prices/SKILL.md inside your project
  3. Restart your AI agent — it will auto-discover the skill

How tracking-crypto-prices Compares

Feature / Agenttracking-crypto-pricesStandard Approach
Platform SupportNot specifiedLimited / Varies
Context Awareness High Baseline
Installation ComplexityUnknownN/A

Frequently Asked Questions

What does this skill do?

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".

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

SKILL.md Source

# Tracking Crypto Prices

## Contents

[Overview](#overview) | [Prerequisites](#prerequisites) | [Instructions](#instructions) | [Output](#output) | [Error Handling](#error-handling) | [Examples](#examples) | [Resources](#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

1. Install dependencies: `pip install requests pandas yfinance`
2. Optional: `pip install python-dotenv` for API key management
3. Optional: Get free API key from https://www.coingecko.com/en/api for higher rate limits
4. Add API key to `${CLAUDE_SKILL_DIR}/config/settings.yaml` or set `COINGECKO_API_KEY` env var

## Instructions

1. Check current prices for one or more symbols:
   ```bash
   python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC
   python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbols BTC,ETH,SOL
   ```
2. Use watchlists to scan predefined groups (available: `top10`, `defi`, `layer2`, `stablecoins`, `memecoins`):
   ```bash
   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
   ```
3. Fetch historical data by period or custom date range:
   ```bash
   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 ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol ETH --start 2024-01-01 --end 2024-12-31  # 2024 full year
   ```
4. Configure settings by editing `${CLAUDE_SKILL_DIR}/config/settings.yaml` to customize cache TTLs, default currency, and custom watchlists. See `references/implementation.md` for 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 `${CLAUDE_SKILL_DIR}/data/`

See `${CLAUDE_SKILL_DIR}/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:**
```bash
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:**
```bash
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --watchlist top10
```

**Historical export:**
```bash
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol ETH --period 90d --output csv
# Creates: ${CLAUDE_SKILL_DIR}/data/ETH_90d_[date].csv
```

## Resources

- `${CLAUDE_SKILL_DIR}/references/implementation.md` - Output formats, full config, integration guide, file map
- [CoinGecko API](https://www.coingecko.com/en/api) - Primary data source
- [yfinance](https://github.com/ranaroussi/yfinance) - Fallback for historical data

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