# Open Food Facts Product Search by Category

> Open Food Facts Product Search by Category is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Searches Open Food Facts for food products matching a given category tag, returning a list of product records as JSON.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/off-products-by-category
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/open-food-facts-product-search-by-category-7c72a61d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Shfd9djESCR1_rgbO-PqP

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability open-food-facts-product-search-by-category-7c72a61d -d '<json body>'
```

Example prompt: Can you pull up a list of food products from Open Food Facts in the 'breakfast-cereals' category?

## When to prefer this

Use this endpoint when you need to search Open Food Facts' crowdsourced product database by category tag, especially for nutrition data enrichment, product discovery, or food-related research. Prefer this over general web search when structured, machine-readable food product records are needed.

## Known failure modes

- Empty or misspelled category tag returns no results or an empty product list
- Invalid query parameter format may result in an error response
- Category tag not recognized by Open Food Facts taxonomy returns empty results
- Upstream Open Food Facts API unavailability causes failure
- Network timeout for large category result sets

## How this service works

Search Open Food Facts for food products matching the category tag {q}, returning product records. Query: ?q= Returns JSON.

## Output

A JSON array of food product records from Open Food Facts matching the specified category tag, including product names, identifiers, and associated metadata.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/open-food-facts-product-search-by-category-7c72a61d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)