# Duaer > The Duaer skill catalog lists call skills you can paste into an agent. Opening the catalog does not search and does not use credits. Chinese index: [llms.txt](https://skills.duaer.com/zh/llms.txt). ## Skills - [Search papers in Duaer](https://skills.duaer.com/papers.md): In Duaer, search published papers. One successful search uses 1 credit. - [Search proteins in Duaer](https://skills.duaer.com/proteins.md): In Duaer, search genes and proteins. One successful search uses 1 credit. - [Search clinical trials in Duaer](https://skills.duaer.com/trials.md): In Duaer, search clinical trials. One successful search uses 1 credit. - [Search compounds in Duaer](https://skills.duaer.com/compounds.md): In Duaer, search compounds and drugs. One successful search uses 1 credit. - [Search protein structures in Duaer](https://skills.duaer.com/structures.md): In Duaer, search protein structures. One successful search uses 1 credit. - [Search diseases in Duaer](https://skills.duaer.com/diseases.md): In Duaer, search UniProt disease names. One successful search uses 1 credit. - [Search organisms in Duaer](https://skills.duaer.com/organisms.md): In Duaer, search UniProt taxonomy. One successful search uses 1 credit. - [Search keywords in Duaer](https://skills.duaer.com/keywords.md): In Duaer, search UniProt keywords. One successful search uses 1 credit. - [Search locations in Duaer](https://skills.duaer.com/locations.md): In Duaer, search UniProt subcellular locations. One successful search uses 1 credit. - [Search Gene Ontology in Duaer](https://skills.duaer.com/gene-ontology.md): In Duaer, search Gene Ontology terms. One successful search uses 1 credit. - [Search pathways in Duaer](https://skills.duaer.com/pathways.md): In Duaer, search Reactome pathways. One successful search uses 1 credit. - [Get a Duaer key](https://skills.duaer.com/keys.md): A Duaer key authorizes calls to the Duaer data API. Create it after you sign in. The full value is shown once.