Discover Research and Citations
Scholarly and trial metadata for topic alerts, literature monitors, and research discovery tools that link back to the source.
Curated by Trilemma Data · Reviewed 2026-08-19
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PubMed Citation Records
IntermediateSmall
PubMed Citation Records
Curated biomedical citation records for building topic alerts, evidence discovery tools, publication monitors, and research trend summaries.
First Project: Track Newly Indexed Biomedical Articles
ResearchJSON +1No Key
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OpenAlex Scholarly Works
IntermediateSmall
OpenAlex Scholarly Works
Open scholarly metadata linking works, authors, institutions, sources, topics, and citations for building research-monitoring products.
First Project: Track Recent Work on One Research Topic
ResearchJSON +2Key
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arXiv Preprint Metadata
IntermediateSmall
arXiv Preprint Metadata
Open preprint descriptive metadata for building topic alerts and research discovery tools that link back to arXiv.
First Project: Watch Recent Machine-Learning Preprints
ResearchAtom XMLNo Key
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ClinicalTrials.gov Study Records
IntermediateSmall
ClinicalTrials.gov Study Records
Registered clinical study protocols, locations, recruitment states, and results for building trial finders and research-monitoring tools.
First Project: Find Recruiting Trials for One Condition
HealthJSON +1No Key
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Wikimedia Pageviews
BeginnerSmall
Wikimedia Pageviews
Per-article and project pageview counts for building attention monitors and topic-trend tools.
First Project: Chart One Wikipedia Article's Daily Pageviews
ResearchJSONNo Key
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Crossref Works Metadata
IntermediateSmall
Crossref Works Metadata
Publisher-deposited DOI metadata for building literature monitors, journal alerts, funding analyses, and scholarly-reference tools.
First Project: Monitor Recent Deposits about One Topic
ResearchJSONNo Key
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USPTO Open Data Portal
IntermediateLarge
USPTO Open Data Portal
U.S. patent bibliographic records for building assignee, classification, and filing-volume research tools.
First Project: List Recent Utility Patent Applications
ResearchJSON +3Key
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PubChem Compounds
BeginnerLarge
PubChem Compounds
Chemical identifiers, properties, and bioassay links for building compound lookup and structure-reference tools.
First Project: Look Up Aspirin Identifiers
ResearchJSON +2No Key
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