coingecko · starchild-ai-agent — Claude Code skill: crypto prices and charts
This skill hands your agent CoinGecko spot prices, OHLC candles and market stats. Useful when you need a live coin price or a quick read on the market.
npx skills add Starchild-ai-agent/official-skills --skill coingecko -a claude-codeWhat coingecko does
It runs in script mode: the agent reads SKILL.md, then calls functions from exports.py inside a bash block. coin_price covers current and historical prices, coin_ohlc returns candles, coin_chart gives a series of prices alongside market cap and volume. A second group handles discovery — trending coins over the last day, top gainers and losers, recently listed coins, categories and derivatives.
Market-wide numbers come from cg_global (total market cap, volume, dominance) and cg_global_defi for DeFi stats. If a token is not in the id list, cg_token_price fetches its price by contract address on a given platform. Coin ids look like bitcoin or ethereum; when you are unsure, run cg_search first.
The skill needs COINGECKO_API_KEY in your environment — requests fail without it. Its own notes warn against reaching for Coinglass tools instead: the names look alike, the systems do not. Same goes for answering from model memory, since prices go stale fast. Call the function.
What it helps with
- check the current price of bitcoin and ethereum
- pull a month of OHLC candles for a coin
- see which coins are trending in the last day
- compare market cap across token categories
- look up a token price by contract address
Example prompts for the agent
- What is the price of bitcoin and ethereum right now?
- Show me ETH OHLC for the last 30 days
- What is trending on CoinGecko today?
How to install coingecko
1Skills CLI (Vercel)
npx skills add Starchild-ai-agent/official-skills --skill coingecko -a claude-code2Manually: put the files in place
~/.claude/skills/coingecko/SKILL.mdCopy the whole skill folder; for one project use .claude/skills/coingecko/
1Skills CLI (Vercel)
npx skills add Starchild-ai-agent/official-skills --skill coingecko -a codex2Manually: put the files in place
.agents/skills/coingecko/SKILL.mdFor all projects use ~/.agents/skills/
1Skills CLI (Vercel)
npx skills add Starchild-ai-agent/official-skills --skill coingecko -a cursor2Manually: put the files in place
.cursor/skills/coingecko/SKILL.mdCursor also reads .agents/skills/ and .claude/skills/
1GitHub CLI
gh skill install Starchild-ai-agent/official-skills coingecko2Manually: put the files in place
.github/skills/coingecko/SKILL.md1Skills CLI (Vercel)
npx skills add Starchild-ai-agent/official-skills --skill coingecko -a gemini-cli2Platform CLI
gemini skills install https://github.com/Starchild-ai-agent/official-skills --path coingeckoManually: put the files in place
.devin/skills/coingecko/SKILL.mdThe legacy .windsurf/skills/ path still works
Skills CLI (Vercel)
npx skills add Starchild-ai-agent/official-skills --skill coingecko -a opencodeClaude.ai
Zip the folder and upload it in Settings → Capabilities → Skills
Step by step, with commands for each platform: How to install skills in Claude Code: five ways
Questions about coingecko
How do I install coingecko in Claude?
Run npx skills add Starchild-ai-agent/official-skills --skill coingecko -a claude-code. The skill lands at ~/.claude/skills/coingecko/SKILL.md.
What does the coingecko skill do?
It gives the agent spot prices, OHLC candles, charts, trending coins, categories and global market stats through functions in exports.py.
What do I need before using it?
A COINGECKO_API_KEY environment variable. Without it the CoinGecko calls will not go through.
Similar skills
Everything for Finance and business →coingecko by other authors comes first.
