> 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/cheminf.md).

# Search CHEMINF in Duaer

In Duaer, search chemical information terms via CHEMINF. One successful search uses 1 credit.
## What you get

CHEMINF in the Duaer data market uses 1 credit per successful search.

Related: [phenotypes](/getting-started/phenotypes.md).

## Search on the canvas

1. Open the node creator, pick Duaer Data → CHEMINF .
2. Fill Words (default descriptor) or ID.
3. Limit defaults to 10, max 20. Execute.

A successful search uses 1 credit.

## Call the API

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

The call skill below matches Copy skill.

## Call skill

Same text as Copy skill.

```
---
name: duaer-cheminf
description: >-
  Search chemical information terms via CHEMINF through Duaer.
  One successful search uses 1 Duaer credit.
---

# Duaer CHEMINF

Search chemical information terms via CHEMINF through Duaer with a Duaer key.

## Call

`GET https://api.duaer.com/v1/data/cheminf?words=descriptor&limit=10`

Provide `words` or `id`.
- `words` — search words, such as descriptor.
- `id` — optional. Id such as CHEMINF:000000.
- `limit` — optional. From 1 to 20. Default 10.

## Result

Each item has `source`, `title`, `url`, `summary`, `cheminfId`, `description`, `synonyms`, and `iri`.

```
## Questions

### How many credits does a CHEMINF search use in Duaer?

One successful search uses 1 credit.