> For the complete documentation index, see [llms.txt](https://doc.duaer.com/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/getting-started/eu-open-data.md).

# EU open data in Duaer

In Duaer: 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 credit.
## What you get

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.

Pick Duaer Data → EU open data in the node creator, or open the [data market](/getting-started/data-market.md). Related: [World Bank indicators](/getting-started/world-bank.md), [re3data](/getting-started/re3data.md).

## When to use it

- 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 it

- Reading the rows of a dataset. Open the dataset link to download its files.
- Research data repositories. Use [zenodo](/getting-started/zenodo.md) or [re3data](/getting-started/re3data.md).

## Search on the canvas

1. Open the node creator and pick Duaer Data → EU open data.
2. Fill Words (such as energy prices). Optional: Country.
3. Limit defaults to 10, max 20. Execute.

A search uses 1 credit only when it returns rows. No rows, wrong input, or an upstream failure uses 0.

## Call the API

- GET https://api.duaer.com/v1/data/eu-open-data?words=air%20quality&country=de
- Authorization: Bearer <Duaer key>

The call skill below matches Copy skill in the Duaer data market, with parameters, examples, and result fields.

## Call skill

Same text as Copy skill.

```
---
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

```
## Questions

### How many credits does a EU open data search use in Duaer?

One credit when Duaer returns rows. A search with no rows or an error uses 0.

### Does Duaer EU open data return the data itself?

No. Duaer returns the dataset record with a link; download the files from that page.

## Related

- [World Bank indicators in Duaer](https://doc.duaer.com/getting-started/world-bank.md)
- [Search re3data in Duaer](https://doc.duaer.com/getting-started/re3data.md)