Aqua-Calc Foods
# Aqua-Calc Foods API Programmatic access to the canonical food reference data behind [aqua-calc.com](https://www.aqua-calc.com/), the long-running reference site for unit conversions and substance properties. Data is sourced from the **USDA FoodData Central** database (Foundation, SR Legacy, Survey, and Branded subsets) plus Aqua-Calc's own curated non-USDA entries — over **100,000 generic and…
Aqua-Calc Foods endpoints
| Method | Endpoint | Description |
|---|---|---|
| health | ||
| GET |
getHealth /health |
Cheap end-to-end check covering PHP, the autoloader, the compiled SQL constants, and a round-trip to MySQL. Suitable for daily uptime probes (RapidAPI, UptimeRobot, etc.). Every… |
| foods | ||
| GET |
listFoods /foods |
Returns a paginated, slug-ordered list of foods whose name matches the search term. Use `next_cursor` from one response as `cursor` on the next request to walk all pages. |
| GET |
getFoodDensity /foods/{slug}/density |
Returns the food's density in the canonical unit (`g/cm^3`). |
| GET |
getFoodIngredients /foods/{slug}/ingredients |
Returns the manufacturer's ingredient statement verbatim, as recorded by USDA. The text is a single string -- USDA statements include nested parentheses and "CONTAINS LESS THAN… |
| GET |
getFoodNutrients /foods/{slug}/nutrients |
Returns the food's full nutrient profile -- the same per-100g figures shown on the Aqua-Calc food page -- in the canonical USDA report order. Each value is already rounded to the… |
Aqua-Calc Foods pricing
| Plan | Price | Rate limit | Quotas |
|---|---|---|---|
| BASIC | Free | — |
|
| PRO | $9.99 / month | — |
|
| ULTRA | $29.99 / month | — |
|