# Build CoinGecko API Integrations

Crypto applications need reliable market data and clear endpoint guidance. This skill helps you choose CoinGecko APIs, authentication methods, and SDK patterns.

## Install

```bash
npx skillstore add 2025emma/coingecko
```

## Metadata

- - Slug: 2025emma-coingecko
- - Version: 1.0.0
- - Author: 2025Emma
- - GitHub username: 2025Emma
- - License: MIT
- - Repository: https://github.com/2025Emma/vibe-coding-cn/tree/main/i18n/en/skills/coingecko
- - Ref: main
- - Supported tools: Claude, Codex, Claude Code
- - Risk level: medium
- - Risk factors: external\_commands, network, env\_access, filesystem
- - Quality score: 50
- - Quality tier: warning
- - Public page: https://skillstore.pages.dev/skills/2025emma-coingecko
- - Manifest: https://skillstore.pages.dev/api/skills/2025emma-coingecko/manifest

## Capabilities

- Explains CoinGecko Demo and Pro API authentication methods.
- Maps endpoints for coins, contracts, exchanges, NFTs, trending data, and global markets.
- Provides request parameter guidance for price, market, history, OHLC, and token data.
- Summarizes official SDK usage patterns for TypeScript and other supported examples.
- Helps troubleshoot rate limits, usage credits, API keys, and endpoint selection.

## Use Cases

- Create a Price Tracker: Find the right endpoints and parameters for live cryptocurrency price, market cap, and volume data.
- Integrate Pro API Authentication: Compare header and query authentication methods, then implement safer API key handling.
- Research Token and Exchange Data: Locate endpoint references for token contracts, exchanges, NFTs, trending assets, and on-chain pools.

## Prompt Templates

### Find an Endpoint

```
Which CoinGecko endpoint should I use to get current Bitcoin and Ethereum prices in USD? Explain required parameters.
```

### Choose Authentication

```
Help me set up CoinGecko Pro API authentication using headers. Include security cautions for API key storage.
```

### Plan Market Data Calls

```
Design a CoinGecko data flow for a portfolio dashboard with prices, market charts, and exchange tickers.
```

### Review an Integration

```
Review my CoinGecko integration plan for rate limits, endpoint selection, retry handling, and secure key usage.
```

## Limitations

- It does not call the CoinGecko API by itself.
- Captured documentation can lag behind current CoinGecko API changes.
- Users must provide and protect their own API keys.
- It is not financial, trading, tax, or investment advice.

## Best Practices

- Use header authentication instead of query-string API keys.
- Confirm CoinGecko coin IDs before using symbols or names.
- Cache responses and respect the plan rate limit.

## Anti Patterns

- Do not hardcode API keys in frontend code.
- Do not assume token symbols are unique across networks.
- Do not treat market data responses as trading recommendations.

## Security Audit

- - Safe to publish: true
- - Audited at: 2026-06-27T13:23:36.347\+00:00
- - Summary: The static analyzer reported many command, network, credential, and filesystem patterns. Reviewed evidence shows these are Markdown documentation, API URLs, endpoint placeholders, and code examples. No malicious execution path or exfiltration intent was found, but API-key URL examples and embedded assistant prompts need user caution.

## Stats

- - Views: 932
- - Downloads: 7
- - Favorites: 0
- - Popularity score: 0