# Coinmarketcap

> CoinMarketCap

- Skill: `spike-faye-lei/coinmarketcap` (Agent Skill, multi-file: 9 files)
- Install (CLI): `npx skillmds@latest add spike-faye-lei/coinmarketcap`
- Raw SKILL.md: https://api.skillmd.com/api/skills/spike-faye-lei/coinmarketcap/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: spike-faye-lei (https://skillmd.com/u/spike-faye-lei)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/spike-faye-lei/coinmarketcap

---

# CoinMarketCap

## Overview
Cryptocurrency market data and rankings. Real-time prices, market caps, volumes, and trending tokens from CoinMarketCap's internal data API.

## Workflows

### Browse top cryptocurrencies
1. `getListings(limit)` → `id`, name, symbol, quotes[].price, cmcRank
2. `getQuote(id)` → statistics.price, marketCap, volume24h, description

### Check a specific coin's market data
1. `getListings(sortBy: "name")` → `id`
2. `getQuote(id)` → price, market cap, supply, ATH/ATL, percent changes

### Discover trending coins
1. `getTrending(limit)` → `cryptoId`, tokenName, priceUsd
2. `getQuote(id=cryptoId)` → full details for a trending coin

## Operations

| Operation | Intent | Key Input | Key Output | Notes |
|-----------|--------|-----------|------------|-------|
| getListings | top coins by market cap | start, limit, sortBy | cryptoCurrencyList[].name, symbol, quotes[].price, marketCap, cmcRank | paginated, default sort: market_cap desc |
| getQuote | coin price/market data | id <- getListings / getTrending.cryptoId | statistics.price, marketCap, volume24h, rank, ATH/ATL, description | numeric ID required (1=BTC, 1027=ETH) |
| getTrending | trending/hot coins | start, limit | list[].tokenName, tokenSymbol, priceUsd, volume24h, pricePercentageChange24h | entry point for discovery |

## Quick Start

```bash
# Get top 10 cryptocurrencies by market cap
openweb coinmarketcap exec getListings '{"limit":10}'

# Get Bitcoin details (id=1)
openweb coinmarketcap exec getQuote '{"id":1}'

# Get Ethereum details (id=1027)
openweb coinmarketcap exec getQuote '{"id":1027}'

# Get trending coins
openweb coinmarketcap exec getTrending '{"limit":10}'
```