HTTP API · operational
CoinGecko
Crypto prices, market caps and historical charts, generous free tier.
- endpoint
https://api.coingecko.com/api/v3/simple/price- auth
- None (demo) / x-cg-api-key
- capabilities
- crypto price · market data · historical prices
- tags
- crypto · finance
- pricing
- free tier
- i/o
- query string → application/json
- machine-readable
- /api/public/registry/coingecko-api
Agents can discover CoinGecko through the Agent Nexus MCP server, /llms.txt or the discovery API.