> For the complete documentation index, see [llms.txt](https://docs.api.ecoinvent.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.api.ecoinvent.org/overview/welcome.md).

# Welcome

The ecoinvent API is a RESTful interface providing access to the ecoinvent database, enabling customers to query and retrieve data efficiently. It facilitates integration with other systems, allowing developers to build applications leveraging the extensive life cycle inventory data available in ecoinvent.

#### What You Can Do with the API

* Access to over 26000+ datasets from the ecoinvent database
* Get impact scores from over 600+ indicators
* Extract multiple datasets simultaneously
* Link ecoinvent users into your application
* Test it for free! Find out how, [here](/overview/free-trial.md).

**Coming from beta?** Check out the [Release Notes](/release-notes/changelog-v3.md) for a summary of what changed from the beta version, including breaking changes and migration guidance.

{% hint style="info" %}
To get access to our API, please contact our [Sales team](mailto:sales@ecoinvent.org). For technical support, contact our [Support](https://ecoinvent.org/contact-us/) team. By using the API, you accept its [terms of use](https://19913970.fs1.hubspotusercontent-na1.net/hubfs/19913970/Comms/API_Terms_2025.pdf). 
{% endhint %}


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# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.api.ecoinvent.org/overview/welcome.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.