入门
在 Duaer 里查欧盟开放数据
在 Duaer 里：在 data.europa.eu 检索欧盟机构与各国门户发布的公开数据集：标题、发布方、国家、文件格式与更新时间。一次成功查询用 1 额度。
能拿到什么
Duaer 数据市场里的「欧盟开放数据」：在 data.europa.eu 检索欧盟机构与各国门户发布的公开数据集：标题、发布方、国家、文件格式与更新时间。查到结果时用 1 额度，结果交给数字组织的下一个节点。
从节点创建器选 Duaer 数据 → 欧盟开放数据，或打开 数据市场。相关：世界银行指标、re3data。
适合做什么
- 查找欧洲能源、交通、环境或统计方面的官方数据集。
- 在搭建数据管道前，先列出某国在某主题上发布了哪些数据。
在画布里检索
- 打开节点创建器，选 Duaer 数据 → EU open data。
- 填 Words（关键词）；Country 可选（两位小写代码，如 de）。
- Limit 默认 10，最大 20。执行。
查到结果才扣 1 额度；没有结果、输入有误或上游失败都不扣。
用 API 调用
- GET https://api.duaer.com/v1/data/eu-open-data?words=air%20quality&country=de
- Authorization: Bearer <Duaer key>
下方是与数据市场「复制技能」相同的英文技能，含参数、示例与返回字段。
调用技能（英文）
与数据市场「复制技能」一致。
---
name: duaer-eu-open-data
description: >-
Duaer EU open data. Find public datasets from EU institutions and national portals on data.europa.eu: title, publisher, country, file formats, and last update.
One successful search uses 1 Duaer credit.
---
# Duaer EU open data
Duaer EU open data searches the data.europa.eu catalog of more than a million datasets. Titles come in English when the publisher provides a translation.
## When to use
- Find an official dataset on energy, transport, environment, or statistics in Europe.
- List what a country publishes on a topic before building a pipeline.
## When not to use
- Reading the rows of a dataset. Open the dataset link to download its files.
- Research data repositories. Use https://skills.duaer.com/zenodo.md or https://skills.duaer.com/re3data.md.
## Call
`GET https://api.duaer.com/v1/data/eu-open-data?words=air%20quality&country=de`
Header: `Authorization: Bearer <Duaer key>`
Use an account key or a model API key.
Get a Duaer key: https://skills.duaer.com/keys.md
## Parameters
Provide `words`.
- `words` — Words in the dataset, such as air quality.
- `country` — Optional. Two-letter code of the publishing country, such as de.
- `limit` — Optional. Rows to return, from 1 to 20. Default 10.
## Examples
- `GET https://api.duaer.com/v1/data/eu-open-data?words=air%20quality&country=de` — German air-quality datasets.
- `GET https://api.duaer.com/v1/data/eu-open-data?words=energy%20prices&limit=5` — energy price datasets across Europe.
## Result
The response is `{ "items": [...] }`. Each item has `source`, `title`, `url`, and `summary`, plus:
- `datasetId` — catalog id.
- `publisher`, `country` — who publishes it.
- `formats` — distribution formats, such as CSV or JSON.
- `modified` — last update date.
- `description` — short description.
Fields without a value are left out.
## Credits
A search that returns at least one row uses 1 credit.
An empty search, a search that finds nothing, or a failed search uses 0.
Wrong input returns 400 with a message and uses 0.
No remaining credits returns 402 and does not search.
A missing key returns 401.
## Related
- https://skills.duaer.com/world-bank.md — Duaer World Bank indicators
- https://skills.duaer.com/re3data.md
常见问题
Duaer 的欧盟开放数据检索扣多少额度？
查到结果时扣 1 额度；没有结果或出错不扣。
Duaer 欧盟开放数据会返回数据本身吗？
不会。Duaer 返回数据集条目和链接，请从该页面下载文件。
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