> For the complete documentation index, see [llms.txt](https://doc.duaer.com/zh/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.duaer.com/zh/getting-started/open-food-facts.md).

# 在 Duaer 里检索 Open Food Facts

在 Duaer 里在 Open Food Facts 搜索食品。一次成功查询用 1 额度。
## 能拿到什么

Duaer 数据市场里的「Open Food Facts」一次成功查询 1 额度。

从节点创建器选「Open Food Facts」，或打开 [数据市场](/zh/getting-started/data-market.md)。相关见 [metabolites](/zh/getting-started/metabolites.md)。

## 在画布里检索

1. 打开节点创建器，选 Duaer 数据 → Open Food Facts。
2. 填 Words（默认 yogurt）或 ID。
3. Limit 默认 10，最大 20。执行。

成功扣 1 额度。

## 用 API 调用

- GET https://api.duaer.com/v1/data/open-food-facts?...
- Authorization: Bearer <Duaer key>

下方是与「复制技能」相同的英文技能。

## 调用技能（英文）

与数据市场「复制技能」一致。

```
---
name: duaer-open-food-facts
description: >-
  Search products in Open Food Facts through Duaer.
  One successful search uses 1 Duaer credit.
---

# Duaer Open Food Facts

Search products in Open Food Facts through Duaer with a Duaer key.

## Call

`GET https://api.duaer.com/v1/data/open-food-facts?words=yogurt&limit=10`

Provide `words` or `id`.
- `words` — product name, such as yogurt.
- `id` — optional. Barcode such as 3017620422003.
- `limit` — optional. From 1 to 20. Default 10.

## Result

Each item has `source`, `title`, `url`, `summary`, `code`, and `brands`.

```
## Questions

### Duaer 的 Open Food Facts 检索扣多少额度？

一次成功扣 1 额度。