vibe-coding-cn/assets/skills/coingecko/SKILL.md

name, description

name	description
coingecko	CoinGecko API skill: cryptocurrency prices, market data, coin IDs, historical charts, trending search, onchain endpoints, API-key authentication, and rate-limit-aware request design.

coingecko Skill

Use this skill to integrate CoinGecko market data into applications, agents, dashboards, and analysis pipelines with clear API-key and rate-limit handling.

When to Use This Skill

Trigger when any of these applies:

• Querying token prices, market cap, volume, historical charts, trending coins, NFTs, categories, or exchange data from CoinGecko.
• Choosing Demo API vs Pro API root URLs and authentication headers.
• Designing rate-limit-aware polling, cache refresh, or price freshness checks.
• Building crypto dashboards, price alerts, analytics jobs, or market-data enrichers.
• Navigating CoinGecko MCP, REST, or onchain/GeckoTerminal reference material.

Not For / Boundaries

• Not financial advice, token endorsement, trade execution, or market manipulation support.
• Do not expose API keys in query strings unless unavoidable; prefer headers and backend proxy insertion.
• Do not assume symbol uniqueness; resolve assets with CoinGecko coin IDs before price calls.
• Required inputs: plan type, root URL, API key availability, coin IDs/symbols/contracts, quote currencies, date range, and freshness requirements.
• CoinGecko endpoints and plan gates evolve; verify paid-only endpoints and rate limits in references/ before production use.

Quick Reference

Common Patterns

Demo API ping with header auth

curl -X GET "https://api.coingecko.com/api/v3/ping" \
  -H "x-cg-demo-api-key: YOUR_API_KEY"

Pro API ping with header auth

curl -X GET "https://pro-api.coingecko.com/api/v3/ping" \
  -H "x-cg-pro-api-key: YOUR_API_KEY"

Simple price for coin IDs

curl "https://api.coingecko.com/api/v3/simple/price?ids=bitcoin,ethereum&vs_currencies=usd"

Include freshness fields in price response

curl "https://api.coingecko.com/api/v3/simple/price?ids=bitcoin&vs_currencies=usd&include_last_updated_at=true"

Market list by market cap

curl "https://api.coingecko.com/api/v3/coins/markets?vs_currency=usd&order=market_cap_desc&per_page=100&page=1"

Historical chart by coin ID

curl "https://api.coingecko.com/api/v3/coins/bitcoin/market_chart?vs_currency=usd&days=30"

Trending search

curl "https://api.coingecko.com/api/v3/search/trending"

Onchain trending pools

curl "https://api.coingecko.com/api/v3/onchain/networks/trending_pools"

Examples

Example 1: Price Widget

• Input: coin IDs bitcoin,ethereum, quote usd, refresh interval.
• Steps:
  1. Use /simple/price with include_last_updated_at=true.
  2. Cache responses according to product freshness needs and plan limits.
  3. Display stale-data warnings when last_updated_at is outside the allowed window.
• Expected output / acceptance: a small response with current prices and explicit freshness handling.

Example 2: Market-Cap Dashboard

• Input: quote currency usd, per_page=100, page number.
• Steps:
  1. Query /coins/markets.
  2. Persist coin ID, symbol, name, price, market cap, and volume.
  3. Avoid treating symbols as primary keys because duplicates exist.
• Expected output / acceptance: stable dashboard rows keyed by CoinGecko ID.

Example 3: Trending Research Batch

• Input: need trending coins, NFTs, and categories in the last 24 hours.
• Steps:
  1. Query /search/trending.
  2. Normalize returned entities by type.
  3. For coins that require prices, follow up with /simple/price using IDs.
• Expected output / acceptance: a typed trending list with price enrichment only where IDs are available.

References

• references/index.md: navigation for local CoinGecko docs.
• references/authentication.md: Demo/Pro API keys, root URLs, and header names.
• references/coins.md: coin IDs, markets, charts, simple price, and trending search.
• references/market_data.md: NFT market data notes.
• references/exchanges.md: exchange endpoints.
• references/trending.md: onchain trending pool endpoints.
• references/llms.md and references/llms-full.md: LLM-oriented reference exports.

Maintenance

• Sources: local references/ extracted from CoinGecko documentation.
• Last updated: 2026-04-28
• Known limits: plan availability and rate limits are account-specific; verify against the active CoinGecko plan before shipping.