is a Data Source.
BioStudies is an EMBL-EBI repository for descriptions of biological studies. It links each study to its associated data, whether held in other EMBL-EBI databases, in external resources, or in BioStudies itself, and accepts data that do not fit into specialised archives. Studies are organised into collections with their own metadata guidelines; the largest holds supplementary data imported from Europe PMC articles, and ArrayExpress has been served as a BioStudies collection since 2021.
general, metadata, information technology, scholarly communication, literature
No external IDs available
| ID | Name | URL | Category | Format | Description |
|---|---|---|---|---|---|
| biostudies.portal | BioStudies Web Interface | biostudies | Graphical Interface | http | Web interface for searching and brows... |
| biostudies.api | BioStudies REST API | search | Programming Interface | http | REST API returning JSON for searching... |
| biostudies.ftp | BioStudies FTP Archive | biostudies | Product | mixed | FTP/HTTPS archive of BioStudies study... |
| biostudies.submission | BioStudies Submission Tool | submissions | Graphical Interface | http | BioStudies submission tool for deposi... |
| ID | Name | URL | Category | Format | Relation | Description |
|---|---|---|---|---|---|---|
| arrayexpress.api | ArrayExpress Search API | search | Programming Interface | http | had primary source | BioStudies REST API endpoint for sear... |
| europepmc.textmined-terms | Europe PMC Text-Mined Database Accession Links | TextMinedTerms | Mapping | csv | had primary source | CSV files, one per database, linking ... |
| omicsdi.portal | OmicsDI Portal | www.omicsdi.org | Graphical Interface | http | had primary source | Web portal for searching and browsing... |
| omicsdi.api | OmicsDI API | index.html | Programming Interface | http | had primary source | Swagger-documented web service for pr... |
| open-tggates.histopathology-images | Open TG-GATEs Histopathology Images | S-BIAD501 | Product | http | had primary source | BioImage Archive study S-BIAD501 (rel... |
BioStudies is an EMBL-EBI repository for descriptions of biological studies. It links each study to its associated data, whether held in other EMBL-EBI databases, in external resources, or in BioStudies itself, and it accepts data that do not fit into specialised archives. A study is often, but not always, tied to a publication.
BioStudies supports data sharing during collaborative projects, deposition at manuscript submission, and data packages after publication, and it has taken over archival for projects moving off legacy infrastructure.
Datasets are organised into collections with their own metadata guidelines. On
2026-10-03 the search API reported 3,413,177 entries in total. Of these, 3,302,748
belonged to the EuropePMC collection (S-EPMC accessions), which holds supplementary
data imported from Europe PMC articles. Other collections include ArrayExpress
(80,947 studies), served as a BioStudies collection since 2021, and BioImages (5,128).
/api/v1/arrayexpress/search and per-study endpoints such as
/api/v1/studies/<accession>/infoThe site links the EMBL-EBI Terms of Use. Individual studies may carry their own terms; no single data license is stated.
Created: October 03, 2026 | Last modified: October 03, 2026