# Calorie API

> Food search and macro data from a JSON REST API

Source: https://tools.launchllama.co/products/calorie-api
Markdown: https://tools.launchllama.co/products/calorie-api.md
Generated: 2026-11-10T16:13:22.663Z

## Facts

- **Name:** Calorie API
- **Tagline:** Food search and macro data from a JSON REST API
- **Short description:** Built for fitness, meal-tracking, and dietitian apps: search 4M+ foods, scan UPC/EAN barcodes, and get structured nutrient data with serving metadata.
- **Website:** https://calorieapi.com/
- **Categories:** API
- **Listing type:** community
- **Upvotes on Launch Llama:** 0
- **Listed since:** 2026-10-28
- **Featured (paid) listing:** no

## Full description

Requests authenticate with an X-API-Key header and return predictable JSON, with OpenAPI docs and a public playground for testing before signup. Search runs on indexed Postgres with Redis caching for low-latency responses. If a barcode is missing from the local catalog, the API falls back to Open Food Facts, and a miss returns HTTP 404 so the app can offer manual search.

## Notes for agents

- Generated on request from live Launch Llama data, so it is always current.
- Human page: https://tools.launchllama.co/products/calorie-api
- Site overview: https://tools.launchllama.co/llms.txt (long form: https://tools.launchllama.co/llms-full.txt)
- Every listing as markdown: https://tools.launchllama.co/catalog.md
- Search the catalog over MCP (https://tools.launchllama.co/mcp) or REST: https://tools.launchllama.co/developers