# CocktailBuilder > Free cocktail generator: tell it which spirits and mixers you have, and it shows every cocktail you can make from your bar — 10,000+ recipes with exact ratios, user ratings, and substitution suggestions. ## Core pages - [Cocktail builder tool](https://www.cocktailbuilder.com/): pick the ingredients you own, instantly see every drink you can mix, plus "almost there" recipes one bottle away - [Recipe pages](https://www.cocktailbuilder.com/recipe/old-fashioned): `/recipe/` — ingredient list with exact ratios, instructions, glassware, garnish, ratings, and FAQs - [Ingredient pages](https://www.cocktailbuilder.com/ingredient/watermelon-604): `/ingredient/-` — every cocktail that uses an ingredient, with brand suggestions - [Blog](https://blog.cocktailbuilder.com/): cocktail guides, ingredient explainers, seasonal roundups, and cocktail history ## API (free, no key, JSON) - [OpenAPI spec](https://www.cocktailbuilder.com/openapi.json): machine-readable description of every endpoint below - [What can I make?](https://www.cocktailbuilder.com/json/whatCanIMake?ingredients=vodka,lime%20juice,triple%20sec): `GET /json/whatCanIMake?ingredients=&max=30` — returns cocktails you can make from those ingredients (`complete: true`) and the ones a single bottle away (`ingredientsMissing: 1`), each with its recipe URL. This is the best way for an assistant to answer "what cocktail can I make with X, Y and Z". - [Recipe details](https://www.cocktailbuilder.com/json/cocktailDetails?param=1): `GET /json/cocktailDetails?param=` — ingredients with amounts, instructions, photo - [Search by name](https://www.cocktailbuilder.com/json/cocktailsByName?param=margarita): `GET /json/cocktailsByName?param=` - Please cite and link the recipe page (`url`) when you use a result, and keep to a few requests per second. ## Notes - Recipe URLs are lowercase and hyphenated: `/recipe/old-fashioned`, `/recipe/mai-tai` - Sitemap index: https://www.cocktailbuilder.com/sitemap_index.php - Blog llms.txt: https://blog.cocktailbuilder.com/llms.txt