crypto-yfinance 0.2.0

Unified cryptocurrency data API — prices, on-chain, derivatives, DeFi, sentiment and more

crypto-yfinance

Built by Aakash Chavan Ravindranath · Medium

---

I got tired of stitching together five different libraries every time I wanted to do proper crypto analysis. Price data from one place, on-chain metrics from another, funding rates somewhere else, and a random script I found online for fear & greed. It was a mess, and I kept rewriting the same boilerplate code in every project.

So I built this. One library that handles all of it — market data, derivatives, on-chain metrics, DeFi TVL, sentiment, technical indicators, and charts. You shouldn't need to install seperate libraries just to answer a simple question about Bitcoin.

The API design is heavily inspired by yfinance. If you've used that, you'll feel right at home.

---

What's inside

Category	What you get
Market Data	Real-time prices, OHLCV history, market cap, volume, coin profiles
Derivatives	Funding rates, open interest, long/short ratios (Binance Futures)
On-Chain	Active addresses, NVT ratio, transaction volume, hash rate (CoinMetrics)
DeFi	Protocol TVL, top protocols, TVL by chain (DeFiLlama)
Sentiment	Fear & Greed Index with full history
Technical Analysis	RSI, MACD, Bollinger Bands, EMA, ATR, OBV built-in
Plots	9 chart types — candlestick, correlation heatmap, dominance, funding rate, and more

All data sources used here are either fully free or have a generous free tier — no API keys required out of the box.

---

Install

pip install crypto-yfinance

For technical indicators (RSI, MACD, etc.):

pip install crypto-yfinance pandas-ta

---

Quick start

from cryptofinance import Ticker

t = Ticker('BTC_USD')

# Price and history
print(t.price)
df = t.history(days=90)

# Full coin profile
print(t.info['ath'])
print(t.info['twitter_followers'])

# Derivatives
print(t.funding_rate)
print(t.long_short_ratio)

# On-chain metrics
print(t.onchain)

# Built-in chart
t.plot(days=60)

---

The Ticker object

This is the main way to use the library. It bundles everything for a single asset into one clean interface.

from cryptofinance import Ticker

t = Ticker('ETH_USD')

Supported symbol format: BASE_QUOTE, e.g. BTC_USD, ETH_USDT, SOL_USD

Properties

t.price              # float — current spot price
t.fast_info          # dict — price, market cap, 24h/7d change, rank, ATH
t.info               # dict — full profile (description, links, social, dev stats)
t.market_cap         # DataFrame — 30-day market cap history
t.volume             # DataFrame — 30-day volume history
t.dominance          # float — % of total crypto market cap

t.funding_rate       # DataFrame — 8h funding rate history (Binance Futures)
t.open_interest      # DataFrame — open interest history (Binance Futures)
t.long_short_ratio   # DataFrame — long vs short account ratio

t.onchain            # DataFrame — active addresses, NVT, tx count, hash rate
t.news               # list — recent news articles

Methods

t.history(days=30, interval='daily')    # DataFrame — OHLCV
# interval options: 'daily', 'hourly', '4h', '15m', '5m', '1m'

t.technicals(days=90)                   # DataFrame — OHLCV + RSI, MACD, BB, ATR, OBV
# requires: pip install pandas-ta

t.plot(days=30, interval='daily')       # candlestick + volume + RSI chart
t.plot(show_rsi=False)                  # candlestick + volume only

---

Multiple assets — Tickers and download()

from cryptofinance import Tickers, download

# Tickers object
t = Tickers(['BTC_USD', 'ETH_USD', 'SOL_USD', 'AVAX_USD'])
t['BTC_USD'].info         # access individual Ticker
t.history(days=30)        # combined multi-level DataFrame
t.prices()                # {'BTC_USD': 95420.0, 'ETH_USD': 3210.5, ...}
t.fast_info()             # summary table for all assets

# Or use download() directly
df = download('BTC_USD', days=90)
df = download(['BTC_USD', 'ETH_USD', 'SOL_USD'], days=30)
df['close']['BTC_USD']    # multi-level column access

---

API Reference

Market data

from cryptofinance import (
    get_price, get_history, get_market_cap, get_volume,
    get_info, get_trending, get_top_coins, get_global, get_dominance, get_news
)

get_price('BTC_USD')
# → 95420.5

get_history('BTC_USD', days=90, interval='daily')
# → DataFrame: timestamp, open, high, low, close, volume

get_market_cap('ETH_USD', days=60)
# → DataFrame: timestamp, market_cap

get_volume('SOL_USD', days=30)
# → DataFrame: timestamp, volume

get_info('BTC_USD')
# → dict: name, rank, description, ath, atl, twitter_followers,
#         reddit_subscribers, github_stars, coingecko_score, ...

get_trending()
# → list of 7 trending coins with name, symbol, market_cap_rank, price_btc

get_top_coins(n=50, currency='usd')
# → DataFrame: rank, name, symbol, price, market_cap, volume_24h,
#              price_change_pct_24h, ath, circulating_supply

get_global()
# → dict: total_market_cap_usd, total_volume_24h_usd, btc_dominance,
#         eth_dominance, market_cap_change_pct_24h, active_cryptocurrencies

get_dominance()
# → {'BTC': 52.4, 'ETH': 17.1, 'BNB': 3.2, ...}

get_news('BTC', limit=10)
# → list of dicts: title, published_at, author, url, tags

Sentiment

from cryptofinance import get_fear_greed

df = get_fear_greed(days=30)
# → DataFrame: timestamp, value (0-100), classification
# Classifications: Extreme Fear / Fear / Neutral / Greed / Extreme Greed

Derivatives

These pull from the Binance Futures public API — no account or API key needed.

from cryptofinance import get_funding_rate, get_open_interest, get_long_short_ratio

get_funding_rate('BTC_USD', limit=100)
# → DataFrame: timestamp, funding_rate, annualized_pct
# Positive = longs paying shorts. Negative = shorts paying longs.

get_open_interest('BTC_USD', period='1d', limit=30)
# → DataFrame: timestamp, open_interest, open_interest_usd

get_long_short_ratio('BTC_USD', period='1d', limit=30)
# → DataFrame: timestamp, long_short_ratio, long_pct, short_pct

On-chain

Powered by the CoinMetrics Community API — free, no key needed.

from cryptofinance import get_onchain

df = get_onchain('BTC', days=90)
# → DataFrame: timestamp, active_addresses, tx_count, transfer_volume_usd,
#              nvt_ratio, hash_rate, mean_fee_native, block_count

What these metrics mean:

• active_addresses — unique addresses active on-chain each day. A growing network = growing adoption.
• tx_count — transaction count. Measures actual usage, not just price.
• nvt_ratio — Network Value to Transactions. Think of it like a P/E ratio for crypto. High NVT = price is running ahead of on-chain activity.
• hash_rate — mining power securing the network (PoW chains only). Higher = more secure and more miner confidence.

DeFi

Powered by DeFiLlama — fully free.

from cryptofinance import get_defi_tvl, get_top_defi, get_tvl_by_chain

get_defi_tvl('uniswap')
# → DataFrame: timestamp, tvl_usd
# Works with: 'aave', 'curve', 'lido', 'makerdao', 'compound', 'pancakeswap', ...

get_top_defi(n=20)
# → DataFrame: name, symbol, tvl_usd, chain, category, change_1h, change_1d, change_7d

get_tvl_by_chain()
# → DataFrame: chain, tvl_usd  (sorted by TVL)

Gas

from cryptofinance import get_gas

get_gas()
# → {'slow': 8.5, 'standard': 12.0, 'fast': 18.0, 'rapid': 25.0, 'unit': 'gwei', 'source': '...'}

Technical indicators

from cryptofinance import get_technicals
# requires: pip install pandas-ta

df = get_technicals('BTC_USD', days=90)
# → OHLCV DataFrame enriched with:
#   EMA_20, EMA_50, SMA_200
#   RSI_14
#   MACD_12_26_9, MACDh_12_26_9, MACDs_12_26_9
#   BBL_20_2.0, BBM_20_2.0, BBU_20_2.0
#   ATRr_14
#   OBV

---

Charts

All charts are interactive Plotly figures that open in your browser or render inline in Jupyter.

from cryptofinance import (
    plot_price, plot_fear_greed, plot_dominance, plot_market_cap,
    plot_compare, plot_correlation, plot_funding_rate,
    plot_onchain, plot_defi_tvl, plot_market_snapshot
)

# Candlestick + volume + RSI (3 panels)
plot_price('BTC_USD', days=60, interval='daily')
plot_price('ETH_USD', days=7, interval='hourly', show_rsi=False)

# Fear & Greed gauge + 30-day bar chart
plot_fear_greed(days=30)

# Donut chart of market dominance
plot_dominance(top_n=8)

# Market cap area chart
plot_market_cap('BTC_USD', days=180)

# Normalised performance comparison
plot_compare(['BTC_USD', 'ETH_USD', 'SOL_USD', 'AVAX_USD'], days=90)

# Return correlation heatmap — useful for portfolio construction
plot_correlation(['BTC_USD', 'ETH_USD', 'SOL_USD', 'LINK_USD'], days=90)

# Funding rate bars + price overlay
plot_funding_rate('BTC_USD', limit=90)

# On-chain metric vs price (dual y-axis)
plot_onchain('BTC_USD', metric='active_addresses', days=90)
plot_onchain('BTC_USD', metric='nvt_ratio', days=180)

# Top DeFi protocols by TVL
plot_defi_tvl(n=15)

# Bubble chart: market cap vs 24h change, sized by volume
plot_market_snapshot(n=50)

---

Caching

By default, results are cached in-memory with sensible TTLs so you don't hammer APIs repeatedly in the same session:

• Prices: 5 minutes
• OHLCV history: 5 minutes
• Coin info: 10 minutes
• Fear & Greed: 1 hour
• On-chain metrics: 1 hour
• News: 15 minutes

To clear the cache manually:

from cryptofinance import clear_cache
clear_cache()

---

Data sources

Source	What it powers	Cost
CoinGecko	Prices, OHLCV, market cap, info, trending	Free
Binance	OHLCV (primary), funding rates, open interest, long/short	Free
CoinMetrics	On-chain metrics (active addresses, NVT, hash rate)	Free
DeFiLlama	DeFi TVL by protocol and chain	Free
alternative.me	Fear & Greed Index	Free
Messari	News articles	Free

---

Contributing

Issues and PRs are welcome at github.com/craakash/cryptofinance.

If something is broken or you want a feature added, open an issue and I'll try to get to it.

---

License

MIT — do whatever you want with it.