OMOPHub

Hosted API and MCP server for the OHDSI OMOP vocabularies that lets agents search, map and resolve 11M+ medical concepts across SNOMED CT, ICD-10, LOINC and RxNorm, including FHIR code resolution. Free plan with 3,000 calls a month; paid plans from $39 a month.

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More in Medical & Clinical Data

openFDA

FDA drug, device and food data APIs.

RxNorm API

Normalized drug names API from NLM.

ClinicalTrials.gov API

Clinical trial registry data.

NIH RePORTER API

NIH-funded research projects.

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Category	Medical & Clinical Data
Authentication	API key
Pricing	Free tier
Website	https://omophub.com/
Docs	https://docs.omophub.com/
Last checked	2026-10-14
As JSON	/api/v1/directory/omophub.json