Summary
Real-time crypto data without the hassle of API docs or rate limits. Pulls current prices, OHLC candles, market rankings, trending coins, and exchange data straight from CoinGecko's API. The skill documentation is unusually thorough, with explicit tool mapping tables that prevent common mistakes like calling similar-sounding tools from other services. Handles both individual coin lookups and bulk market data, plus NFT floor prices and DeFi metrics. Most useful when you need fresh market data for analysis or dashboards, since it automatically resolves coin symbols to CoinGecko's internal IDs and formats everything consistently.
Install to Claude Code
npx -y skills add starchild-ai-agent/official-skills --skill coingecko --agent claude-codeInstalls into .claude/skills of the current project.
Agent, run crypto. Access onchain data & trade routes via 1inch.
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SKILL.mdView on GitHub
Script Usage
Script-mode skill — read this file, then invoke from a bash block:
python3 - <<'EOF'
import sys, json
sys.path.insert(0, "/data/workspace/skills/coingecko")
from exports import coin_price, cg_trending, cg_global
print(coin_price(coin_ids="bitcoin,ethereum"))
print(cg_trending())
EOF
Read exports.py for the full list of available functions. Common ones:
coin_price, coin_ohlc, coin_chart, cg_trending,
cg_top_gainers_losers, cg_new_coins, cg_global, cg_global_defi,
cg_categories, cg_derivatives, cg_coins_markets, cg_coin_data,
cg_coin_tickers, cg_search, cg_token_price, cg_coin_by_contract.
CoinGecko Skill
Function Reference (signatures)
All public functions are in exports.py. coin_id is the CoinGecko id
(e.g. bitcoin, ethereum) — use cg_search(query) first if unsure.
vs_currency defaults to usd.
Prices & Charts
| Function | Description |
|---|---|
coin_price(coin_ids, timestamps=None, vs_currency='usd') | Current or historical price. coin_ids = comma-string like "bitcoin,ethereum". timestamps = list of unix ts for historical (default: now). |
coin_ohlc(coin_id, days=30, vs_currency='usd') | OHLC bars for last N days. Returns list of [ts, o, h, l, c]. Granularity auto-selected: 1d=30min, 7-30d=4h, 30d+=4h. |
coin_chart(coin_id, days=30, vs_currency='usd') | Price + market_cap + total_volume timeseries. Returns {prices, market_caps, total_volumes} (each list of [ts, val]). |
Discovery
| Function | Description |
|---|---|
cg_trending() | Trending coins, NFTs, categories (last 24h). |
cg_top_gainers_losers(vs_currency='usd', duration='24h') | Top gainers/losers. duration = 1h/24h/7d/14d/30d/60d/1y. |
cg_new_coins() | Recently listed coins. |
cg_search(query) | Search coins/exchanges/categories by name. |
Market Data
| Function | Description |
|---|---|
cg_global() | Global crypto market: total market_cap, volume, dominance. |
cg_global_defi() | Global DeFi: TVL, dominance, top protocols. |
cg_coins_markets(vs_currency='usd', order='market_cap_desc', per_page=100, page=1, sparkline=False, price_change_percentage='24h', category=None, ids=None) | Top coins with full market data. |
cg_coin_data(coin_id, localization=False, tickers=False, market_data=True, community_data=False, developer_data=False, sparkline=False) | Detailed data for one coin. |
cg_coin_tickers(coin_id, exchange_ids=None, include_exchange_logo=False, page=1, order='volume_desc', depth=False) | Where a coin trades + volumes. |
cg_coins_list(include_platform=False) | All coin ids/symbols (for resolving). |
Categories / Derivatives / NFTs
| Function | Description |
|---|---|
cg_categories(order='market_cap_desc') | Top categories with market_cap and volume. |
cg_categories_list() | Just category ids/names. |
cg_derivatives(include_tickers='unexpired') | Derivatives tickers across exchanges. |
cg_derivatives_exchanges(order='open_interest_btc_desc', per_page=50) | Derivatives exchange rankings. |
cg_nfts_list(order='market_cap_usd_desc', per_page=100, page=1) | Top NFT collections. |
cg_nft(nft_id) | NFT collection detail. |
cg_nft_by_contract(asset_platform, contract_address) | NFT by contract address. |
Exchanges
| Function | Description |
|---|---|
cg_exchanges(per_page=100, page=1) | Exchange rankings. |
cg_exchange(exchange_id) | One exchange's detail. |
cg_exchange_tickers(exchange_id, ...) | Tickers on an exchange. |
cg_exchange_volume_chart(exchange_id, days=30) | Exchange volume history. |
Contracts / Tokens (by platform)
| Function | Description |
|---|---|
cg_token_price(platform, contract_addresses, vs_currencies='usd', include_market_cap=False, include_24hr_vol=False, include_24hr_change=False, include_last_updated_at=False) | Price by contract address on a platform. |
cg_coin_by_contract(platform, contract_address) | Coin metadata by contract. |
cg_asset_platforms(filter=None) | Supported chains. |
cg_vs_currencies() | Supported quote currencies. |
cg_exchange_rates() | BTC-denominated rates for fiat/major coins. |
🚫 CRITICAL: STOP — READ THIS BEFORE CALLING ANY TOOL
The #1 error is calling Coinglass tools instead of CoinGecko tools. They have similar names but are COMPLETELY DIFFERENT systems.
WRONG → RIGHT Tool Substitution Table
| ❌ NEVER call this | ✅ Call this instead | How to tell them apart |
|---|---|---|
cg_coins_market_data | cg_coins_markets | market_data=Coinglass derivatives. markets=CoinGecko spot. |
cg_ohlc_history | coin_ohlc | ohlc_history=Coinglass futures candles. coin_ohlc=CoinGecko spot candles. |
cg_pair_market_data | cg_coin_tickers | pair_market_data=Coinglass futures pair. coin_tickers=CoinGecko spot pairs. |
cg_supported_exchanges | cg_exchanges | supported_exchanges=Coinglass futures. exchanges=CoinGecko spot. |
cg_taker_exchanges | cg_exchange | taker=Coinglass volume. exchange=CoinGecko exchange info. |
cg_aggregated_taker_volume | cg_coin_tickers | taker_volume=Coinglass. coin_tickers=CoinGecko volume across exchanges. |
defillama_chains | cg_global_defi | For DeFi stats from CoinGecko, use cg_global_defi(). |
Also FORBIDDEN:
- ❌
web_search/web_fetch— ALL data is available via native CoinGecko tools above. NEVER use web_search for crypto market data. - ❌
bashfor data processing — CoinGecko tools return clean data. No bash needed. - ❌ NEVER answer with training data — all prices, rankings, OHLC are stale. CALL THE TOOL.
⚠️ MANDATORY TOOL CALLS — You MUST call a tool before answering these
| Request type | You MUST call | Why |
|---|---|---|
| K线 / OHLC / candlestick / open high low close | coin_ohlc(coin_id, days) | Price data is real-time; training data is stale |
| 走势图 / price chart / 价格趋势 | coin_chart(coin_id, days) | Same reason |
| 当前价格 / price right now | coin_price(coin_ids) | Training data has no live prices |
DO NOT return any numeric market data (prices, OHLC values, percentages) without calling a tool first.
⚡ Question → Tool Map (match first keyword, call immediately)
| Question keyword | Tool to call | Example |
|---|---|---|
| 价格 / price / 多少钱 (single coin) | coin_price(coin_id) | coin_price(coin_ids="bitcoin") |
| K线 / OHLC / candlestick / 蜡烛图 | coin_ohlc(coin_id, days) | coin_ohlc(coin_id="ethereum", days=7) |
| 走势 / trend / price chart / 价格历史 | coin_chart(coin_id, days) | coin_chart(coin_id="solana", days=30) |
| 热门 / trending / 趋势币 | cg_trending() | cg_trending() |
| 涨幅最大 / 跌幅最大 / gainers / losers | cg_top_gainers_losers() | cg_top_gainers_losers() |
| 新币 / 新上线 / new coins / recently added | cg_new_coins() | cg_new_coins() |
| 总市值 / BTC市占率 / global / 晨报 / 市场概况 | cg_global() | cg_global() |
| DeFi总市值 / DeFi TVL / DeFi dominance | cg_global_defi() | cg_global_defi() |
| 板块 / sector / category / L1 / L2 / Meme / AI coins | cg_categories() | cg_categories() |
| 板块内个币 / Meme前10 / AI币排名 / DeFi币排名 | cg_coins_markets(category=X) | cg_coins_markets(category="meme-token", per_page=10) |
| 市值排名 / top 10 / ranking / 前10币 | cg_coins_markets(per_page=N) | cg_coins_markets(per_page=10) |
| ATH / 历史最高 / 社区 / dev / 研究 / fundamentals | cg_coin_data(coin_id) | cg_coin_data(coin_id="solana", community_data=True) |
| 对比两个币 / compare / XX vs YY | cg_coin_data() × 2 | call once per coin |
| NFT排名 / NFT市场 / floor price / top NFTs | cg_nfts_list() | cg_nfts_list() |
| 某个NFT (BAYC/Punks/Azuki) | cg_nft(nft_id) | cg_nft(nft_id="bored-ape-yacht-club") |
| 交易所详情 / Binance详情 / exchange data | cg_exchange(exchange_id) | cg_exchange(exchange_id="binance") |
| 交易所列表 / exchange ranking | cg_exchanges() | cg_exchanges() |
| 交易对 / trading pairs / 流动性分布 | cg_coin_tickers(coin_id) | cg_coin_tickers(coin_id="bitcoin") |
| 交易所交易量趋势 / volume chart | cg_exchange_volume_chart(exchange_id) | cg_exchange_volume_chart(exchange_id="binance", days=30) |
| 合约地址价格 / token price on-chain | cg_token_price(platform, contract) | cg_token_price(platform="ethereum", contract_addresses="0xa0b...") |
| 搜索币 / 找币 / coin lookup / search | cg_search(query) | cg_search(query="pepe") |
| 永续合约交易所 / derivatives exchange / OI排名 | cg_derivatives_exchanges() | cg_derivatives_exchanges() |
| 合约ticker / perpetual / funding / basis | cg_derivatives() | cg_derivatives() |
| 交易所对比 + 永续交易所 | cg_exchanges() + cg_derivatives_exchanges() | both calls |
🌳 Decision Tree
How many coins?
├─ ONE coin
│ ├─ Just price? → coin_price()
│ ├─ ATH/community/dev/deep? → cg_coin_data()
│ ├─ OHLC candles? → coin_ohlc()
│ ├─ Price trend? → coin_chart()
│ └─ Unknown ID? → cg_search() first
├─ MULTIPLE coins / ranking
│ ├─ Sector aggregate (板块总市值)? → cg_categories()
│ ├─ Sector individual (Meme前10)? → cg_coins_markets(category=X)
│ └─ General ranking? → cg_coins_markets(per_page=N)
├─ NFTs → cg_nfts_list() or cg_nft(nft_id)
├─ Exchange → cg_exchange(id) or cg_exchanges()
├─ Global → cg_global() or cg_global_defi()
└─ Token by contract → cg_token_price()
Common Category IDs
meme-token, artificial-intelligence, layer-1, layer-2, decentralized-finance-defi, gaming, real-world-assets-rwa
Output Formatting
- Prices: always use
$sign →$66,697 - Percentages: always use
%→+4.2% - NFT floor in ETH: show USD too →
5.17 ETH ($10,534)
Important Notes
- CoinGecko uses slug IDs: "bitcoin", "ethereum", "solana". Symbols (BTC, ETH, SOL) auto-resolve.
- If unsure about a coin ID →
cg_search(query="coin name")first. - Most questions need only 1-2 tool calls. Do NOT chain 3+ calls.
Common Issues
coin_price failed with invalid ID
Solution: Use cg_search(query="coin name") to find the correct CoinGecko ID first, or use the symbol directly (e.g., 'COMP').
Featured
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →Connect Claude to +800M contacts, +150M companies. Find & Enrich leads in chat.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Categories
