is a Data Source.
PubMed Central (PMC) is NCBI's free full-text archive of biomedical and life-sciences journal literature, including article display, searchable records, article datasets, and controlled automated retrieval services for reusable PMC content.
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| ID | Name | URL | Category | Format | Description |
|---|---|---|---|---|---|
| pmc.portal | PMC Web Portal | pmc.ncbi.nlm.nih.gov | Graphical Interface | http | PMC web portal for searching, browsin... |
| pmc.open-access-subset | PMC Open Access Subset | openftlist | Product | mixed | PMC Open Access Subset containing jou... |
| pmc.ftp | PMC FTP Service | ftp | Product | mixed | PMC FTP service for retrieving file l... |
| pmc.oa-service ⚠ | PMC OA Web Service API | oa-service | Programming Interface | http | PMC OA Web Service API for discoverin... |
| pmc.oai-pmh | PMC OAI-PMH Service | oai | Programming Interface | http | PMC OAI-PMH service for harvesting PM... |
| pmc.eutils | PMC E-utilities API | developers | Programming Interface | http | NCBI Entrez E-utilities interface for... |
| pmc.cloud | PMC Cloud Service | cloud | Product | mixed | PMC Cloud Service providing PMC artic... |
| ID | Name | URL | Category | Format | Relation | Description |
|---|---|---|---|---|---|---|
| litvar.web_interface | LitVar Web Interface | litvar2 | Graphical Interface | http | was derived from | Web interface for searching and retri... |
| litvar.api | LitVar API | litvar2-api | Programming Interface | http | was derived from | RESTful API providing programmatic ac... |
| np-kg.graph.tsv | NP-KG TSV | NP-KG_v3.0.0.tsv?download=1 (1.0 GB) | Graph | tsv | had primary source | Merged KG with ontology-grounded KG a... |
| np-kg.graph.networkx | NP-KG gpickle | NP-KG_v3.0.0.gpickle?download=1 (892.7 MB) | Graph | mixed | had primary source | Merged KG with ontology-grounded KG a... |
| rdbridge.graph | RDBridge Knowledge Graph | ❔ | Graph | ❔ | had primary source | Knowledge graph connecting rare disea... |
| europepmc.portal | Europe PMC Website | europepmc.org | Graphical Interface | http | had primary source | Europe PMC website for searching and ... |
| europepmc.rest-api | Europe PMC Articles RESTful API | rest | Programming Interface | http | had primary source | REST API for searching Europe PMC and... |
| europepmc.oa-fulltext | Europe PMC Open Access Full Text | oa | Product | xml | had primary source | Bulk download of the Europe PMC open ... |
| metabokg.graph ⚠ | MetaboKG RDF Graph | MetaBoKG | Graph | mixed | had primary source | RDF knowledge graph materialized by t... |
| string.protein.links | STRING Protein Links | protein.links.v12.0.txt.gz (128.7 GB) | Graph | txt | had primary source | protein network data (full network, s... |
| string.protein.links.detailed | STRING Protein Links Detailed | protein.links.detailed.v12.0.txt.gz (189.6 GB) | Graph | txt | had primary source | protein network data (full network, i... |
| string.protein.links.full | STRING Protein Links Full | protein.links.full.v12.0.txt.gz (199.6 GB) | Graph | txt | had primary source | protein network data (full network, i... |
| string.protein.physical.links | STRING Protein Physical Links | protein.physical.links.v12.0.txt.gz (11.1 GB) | Graph | txt | had primary source | protein network data (physical subnet... |
| string.protein.physical.links.detailed | STRING Protein Physical Links Detailed | protein.physical.links.detailed.v12.0.txt.gz (13.8 GB) | Graph | txt | had primary source | protein network data (physical subnet... |
| string.protein.physical.links.full | STRING Protein Physical Links Full | protein.physical.links.full.v12.0.txt.gz (14.5 GB) | Graph | txt | had primary source | protein network data (physical subnet... |
| string.cog.links | STRING COG Links | COG.links.v12.0.txt.gz (176.8 MB) | Graph | txt | had primary source | association scores between orthologou... |
| string.cog.links.detailed | STRING COG Links Detailed | COG.links.detailed.v12.0.txt.gz (238.7 MB) | Graph | txt | had primary source | association scores (incl. subscores p... |
| string.database | STRING Database Network Schema | network_schema.v12.0.sql.gz (262.2 GB) | Graph | postgres | had primary source | full database, part II: the networks ... |
| nihreporter.publications | NIH-Funded Publications Database | publications | Product | csv | had primary source | Database of publications linked to NI... |
| nihreporter.linktables | NIH-Funded Publications Link Tables | linktables | Product | csv | had primary source | Database of publication link tables f... |
| stitch.portal | STITCH Web Portal | stitch-db.org | Product | http | had primary source | Web interface for searching and visua... |
| stitch.downloads | STITCH Data Downloads | download.pl | Product | tsv | had primary source | Downloadable data files containing ch... |
| stitch.api | STITCH API | access.pl?footer_active_subpage=apis | Programming Interface | http | had primary source | API for programmatic access to STITCH... |
| babel.compendia | Babel Compendia | compendia | Product | json | had primary source | Babel compendia, one file per Biolink... |
PubMed Central is NCBI’s free full-text archive for biomedical and life-sciences journal literature. PMC provides article display and search, reusable article datasets, and documented automated access services for approved PMC content.
Created: June 02, 2026 | Last modified: October 04, 2026