CoinGecko provides various API functions to filter coins by respective categories.

Trying to curate a list of DeFi coins?

Use our /coins/markets endpoint, and filter by DeFi category.

This returns price, market cap, volume and fully diluted valuation of coins in the DeFi category.

Trying to curate a list of other categories?

Use /coins/categories/list endpoint to get a list of all categories, then use it in /coins/markets endpoint.

You can get categories like non-fungible tokens, stablecoins, play-to-earn tokens and more !

Kindly refer to our documentations site here  for a full list of API requests.
 
If you would like to access categories on our site without using API, you may proceed to https://www.coingecko.com/en/categories